Select two columns in sql. This avoids the need for triggers.

Select two columns in sql SQL concatenation is the process of combining two or more character strings, columns, or expressions into a single string. SET @variable1 = ( SELECT col1 FROM table1 ); That only allows a single column/variable per statement. Remove the first and you should have the same results as your between statement. Converting rows to columns is pivoting. SQL selecting multiple columns and MAX from one of the columns, only one row to be returned. Name) AS Name, CurrMonth. Select column by alias in MySQL. Pull multiple columns when an alias is used. The relationship between the two tables above is the "CustomerID" column. The first is to have two result sets which will set 'Test1' or 'Test2' based on the condition in the WHERE clause, and then UNION them together: select 'Test1', * from TABLE Where CCC='D' AND Example: SELECT with DISTINCT on two columns The SQL statement below retrieves identical rows based on the 'agent_code' and 'ord_amount' columns from the orders table : SQL Code: I have a query: SELECT s. sql multiple counts. Shipment_Cost) AS Shipping_Cost FROM Orders INNER JOIN Trackingnumbers ON Orders. column3 FROM table1 LEFT JOIN table2 ON () Note that I've included the table1. How to get multiple fields of a max value in Sql Server? 0. Follow edited Aug 31, 2011 at 12:59. MySQL column with non-null values from other two columns. Min Date from one column multiple rows. Maybe it will help somebody in futere, in my case i found this solution (not full code, just example): SELECT Table1. SQL provides several ways to select data from multiple tables: Using JOINs: Joins allow you to combine rows from two or more tables based on a related column between them. Commented Jan 25, 2011 at I have two tables in my SQL Server database. Now I want to select the values from both the tables for a particular R Stack Overflow for Teams Where developers & Syntax: SELECT <Expression>[Arithmetic_Operator]<expression> FROM [Table_Name] WHERE [expression]; Expression: Expression made up of a single constant, variable, scalar function, or column name and can also be the pieces of a SQL query that compare values against other values or perform arithmetic calculations. John Saunders. Position ) As Num From Table As T Cross Apply dbo. I need to query a table and select 3 of the values of 4 columns. The columns are: tblFruit_ID, tblFruit_FruitType, using the window functions only one column distinct. Commented Jan 25 SQL to get two column If you don't want to specify all the 100 columns you can: select column_name || ',' from user_tab_columns where table_name = 'TABLE_NAME_IN_UPPER_CASE' order by column_id Then copy the output and past it into your query (Don't forget to remove the last comma): select <PASTE_HERE_PREVIOUS_OUTPUT> from <YOUR_TABLE_NAME> Select Multiple Columns. present - t1. You can only select one column at a time. dee-see. Modified 8 years, 11 months ago. col2 from table I tried IList<string> myResults = ( from data in dbconn. This query returns all unique pairs of values I want to grab a value from a table into two different columns for different values from the same table. DISTINCT on multiple columns. CONCAT_WS. 4 . state_id=3 ) statename, ( select c. However, when dealing with multiple columns, the approach becomes more detailed. If you want to return all columns, without specifying every column name, you can use the SELECT * syntax: In this article, we will explore how to select multiple columns based on conditions in SQL, from basic to advanced techniques, and provide detailed examples to help you master this crucial skill. Multiple Counts in a single query SQL. @ddd yes it eliminates duplicates – eshirvana. SELECT --use table aliases (t1. Here’s what this looks like for two conditions: WHERE condition1 AND condition2 In our example, condition1 is @Jody: the question was about SQL Server - not Oracle - so I gave a solution that works in SQL Server. Id ColumnOne ColumnTwo ColumnThree 1 a b c 2 d e f 3 g h i @Chris: You can't use a wildcard for the column list of a select statement. SQL Statement using Where clause with multiple values. I've tried to explain it a little in my answer, but testing it for yourself is often a better way to convince yourself :) SQL Select for multiple where clause. Hot Network Questions Can the circles fit inside the triangle? About two point Taylor series expansion II How to make machine always turn on after a power outage Select NVL(Column_A, Column_B) From 'schema'. here column_1,column_2 are names of columns you want. select two columns based on the maximum value of the other column in SQL. Value , Row_Number() Over ( Partition By T. – Johan. It certainly works as you might expect in Oracle. How do I select the distinct values of columns A_LOC and Z_LOC combined into a single list? The result of this query would be: A, B, C, F Does union take care of the duplicates when combining the two columns? – ddd. Postgres where clause over two columns from subquery. select * from myTable order by int_category_id, int_order You need to decide what you primary sort will be and inside that the secondary (and so on). Example: ID Date1 Date2 1 1/1/2008 2/1/2008 2 2/1/2008 1/1/2008 3 1/10/2008 1/10/2008 If I wanted my results to look like If you are using a database which supports row number functionality, then one option is to create a CTE of your table with row numbers, according to the order you specified (i. The first column in the SELECT statement is used to sort the result set. Database: Postgres SQL - Select Converting columns to rows is called unpivoting. Given your specification that you are selecting all columns, there is little difference at this time. Realize, however, that database schemas do change. Total AS YearToDate FROM ( SELECT Name, COUNT(Column1) AS Total FROM Table1 WHERE Occurred_Date BETWEEN The full outer join is not necessary, but just demonstrates how you might need to handle a case where one set is not a strict subset of the other. If I have a column that is Address1 and Address2 in my database, how do I combine those columns so that I could perform operations on it only in my select statement, I will still leave them separate in the database. SQL Combine Two Columns in Select Statement. length as Length_Size , t. Improve this question. OrderStatus) As OrderStatus, SUM(Trackingnumbers. That query will find a match for every row, but I only want rows that The brute force approach isn't so bad with four columns: select (case when FirstVisitedDate >= SecondVisitedDate and FirstVisitedDate >= RecoveryDate and FirstVisitedDate >= ActionDate then FirstVisitedDate when SecondVisitedDate >= RecoveryDate and SecondVisitedDate >= ActionDate then SecondVisitedDate when RecoveryDate >= I have a table in my mysql db that has two columns: group and subgroup. coID, c. These row numbers constitute the range which you want to select. Follow answered Apr 8, 2012 at 20:23. Finding maximum of two columns in SQL: SELECT id, column1, column2, CASE WHEN column1 > column2 THEN column1 ELSE column2 END AS max_value FROM SampleTable; Output: Using CASE expression. The following example shows how to query data from the customer_id, name, and credit_limit Case does support multiple columns in the conditional check. primary_key_column to uniquely define your rows and in brackets all the primary keys you need to retrieve. The SQL has to be built dynamically so that each column name is explicitly referenced in the select. Select Distinct on Multiple Columns. Follow edited Sep 24, 2011 at 4:42. Returning Multiple Columns under a single Then Clause using Case in PL/SQL. I have to combine these two columns into one column. OrderID = I would like to select multiple columns using the DatabaseHelper class, the following sql statement works on the database itself but not within android, only the first column is returned: c = db. How to divide 2 values in a column by condition. SQL provides a powerful tool, SELECT DISTINCT, to retrieve unique values from columns. table2 as t2 --inner join returns only rows where the join matches both Of course. Select from table with multiple values. In my example I'm comparing varchar columns so no problem returning value an int 1. 71. column1, table1. xtype WHERE I like [type column] cake with [icing column] and a [fruit column]. Works great--thanks! – Mark. Now I want to select the values from both the tables for a particular R I'm converting SQL from Teradata to SQL Server. The UNION operator joins the results of two or more SELECT statements to produce a single result set. Then I modified my query into something like: select * from table where (ID, NAME) in (select ID, NAME from table group by ID, NAME having count(*) > 1) And this does not work on SQL Server. column2, table2. select max value of one column from multiple values of another field. CONCAT. ) for each column, this is shorthand for dbo. – marc_s. Commented Dec 17, 2013 at 11:32. The flights table has the following columns: airline, flt_no, fairport, tairport, depart, arrive, fare The columns fairport and tairport are the from and to airport codes. Name as Field_Name , t. DISTINCT will eliminate those rows where all the selected Nov 18, 2024 · Obviously, COUNT(DISTINCT) with multiple columns counts unique combinations of the specified columns' values. Hot Network Questions SMD resistor 188 measuring 1. Given that this is a 1 time operation, it's coding is still simple, and run-speed is fast enough for 4000+ rows For multiple columns its best to use a CASE statement, however for two numeric columns i and j you can use simple math: min(i,j) = (i+j)/2 - abs(i-j)/2 . SELECT DISTINCT carBrand FROM Cars Share. Sql Between Clause for multiple columns. SQL> select distinct deptno, job from emp 2 order by deptno, job 3 / DEPTNO JOB ----- ----- 10 CLERK 10 MANAGER 10 PRESIDENT 20 I want to check for the is not null constraint for multiple columns in a single SQL statement in the WHERE clause, is there a way to do so? Also I don't want want to enforce the NOT NULL type constraint on the column If there are several column_B per column_A in your data, then if you group by Column_A and use MAX(Column_B) in your select to bypass the group-by limit, then its just one of those column_B values (here the greatest Discussion: To filter data by multiple conditions in a WHERE clause, use the AND operator to connect the conditions. (columns). Your logic for the two statements is not the same: SELECT * FROM table WHERE (column1 <= column2 AND column1 >= column3) OR (column1 >= column2 AND column1 <= column3) Has two clauses. Name Order By Z. present ,(t1. amount FROM salaries s I would like to select from salaries table only the rows that have period and year equal to: SELECT p. . udf_Split( T. I like strawberry cake with vanilla_cream and a lemon_slice. ahFirstName, a. prec as Precision_ FROM syscolumns c INNER JOIN sysobjects o ON o. the result will be a one row-selection with two columns having these values: test-a1, test-a2 How can I modify the above query to have a selection with several rows, e. How to assign 2 or more variables using a single SELECT statement? I'm using SQL Server 2005. Position, Z. How to SELECT DISTINCT on Multiple Columns in SQL? In the world of databases, data duplication can lead to confusion and inefficiency. Such B) Querying data from multiple columns. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. For instance, SELECT FirstName, LastName FROM Person. Ok, I'll just go with individually defining my columns then, using the PHP variable in each name I define :-) thanks – Chris. This means that you are exposing your system to unexpected Converting columns to rows is called unpivoting. Database: Postgres Table name: records Has 4 columns Year | Dept | Expense | Month So per year there can be up to one record for each month / per department. Getting latest date for multiple records. Ask Question Asked 7 years, 3 months ago. It is similar to this question: SO Question but needs to be done on one table only. *, because this will only return the columns for table a where the join criteria was met. What happens in the CASE should be considered a single column name, in your case you need commas before and after it. Alternatively, you can use dynamic SQL to assemble ad-hoc queries at runtime that can produce any combination of columns as needed. Returning * would return the columns for both a and b where the criteria was met, and not including DISTINCT would result in a duplicate of each row for each time that row row matched another row more than once. SQL select minimum date from same column. e. SELECT FirstName, LastName FROM Person. I need to compare the values of the 3rd column and the fourth column and select the larger value. This means that you are exposing your system to unexpected You can treat the CASE statement as any other column name, separate it from the other columns with a comma, etc. otherVal = 100 AND. Any way of Is there any SQL lingo to return JUST the first two columns of a table WITHOUT knowing the field names? Something like SELECT Column(1), Column(2) FROM Table_Name Or do I have to go the long way It should return something that differentiate completely from the context of that two columns values. code column. I this lets me select the ID I need to match things up to, and the value I need to set for that ID. 'table_name' The NVL( ) function is available in Oracle, and not in MySQL or SQL Server. DATE2%TYPE; V_DATE3 T1. Which brought me here. Viewed 35k times 1 . So, Also note that we return DISTINCT a. Date`, COUNT(*) AS ConnectionCount FROM YourTable GROUP BY ClientID, ServerID How to SELECT Data from Multiple Tables. @marc_s BUT IT IS GOOD FROM JODY THAT HE INFORM OTHERS ABOUT ORACLE. – select content_type_code_id , ABS(price) AS price , SUM(case when price >= 0 THEN 1 ELSE 0 END) AS debits , SUM(case when price < 0 THEN 1 ELSE 0 END) AS credits from dbo. Using Column Alias in Same SELECT Clause. The SQL should be select table. I tried the new function CONCAT() but it's not working when I use more than two columns. Other solutions would have been fine IF I wasn't using Row_Number() which won't work outside of a SELECT. SELECT multiple columns from 4 different TABLES. If I have a table that (among other columns) has two DATETIME columns, how would I select the most recent date from those two columns. table1 --if the same column exists in more than one table the database engine knows --which one you want by looking at the aliases t1. The following will work for SQL: SELECT 'test-a1' AS name1, 'test-a2' AS name2 UNION ALL SELECT 'test-b1', 'test-b2' UNION ALL SELECT 'test-c1', 'test-c2' Share. I am trying If there is a way to write the SQL similar to the above I would like to know. 5k Ohm Elegant way to maximizing linear function subject to being on the surface of a sphere Custom Iterator for Processing Large Files To get the list of fields for which there are multiple records, you can use. id LEFT JOIN systypes t on t. SQL select based on column value. table1 as t1 INNER JOIN dbo. Multiple sql table select. If you want to get the unique names, select only that column. See below. or. You can't make a query to produce different columns according to the rows you selected. What if I need only distinct results from first two column but need to show all columns – Uday Hiwarale. For example: column1 column2 c Jul 31, 2024 · SQL SELECT with DISTINCT on multiple columns: Multiple fields may also be added with DISTINCT clause. If that last aspect of the behaviour is what you are trying to achieve, you could emulate it using a conditional inside COUNT. Person. Name, Z. Always name your columns explicitly. Name as Table_Name , c. Excluding some columns in a SELECT statement. SQL Selecting All columns based on max value of two column. This avoids the need for triggers. 10. With SplitValues As ( Select T. To select more than one column, just separate them with a comma. SELECT col1, col2 FROM table1 INTO @variable1, @variable2 In SQL Server, I found . SQL> alter table load_times 2 add elapsed_time varchar2(8) GENERATED ALWAYS AS 3 I had a similar problem in MS SQL, but a little different. RoleId, Portal_ClubGroups. Other answers here suggest similar functionality with the ISNULL() function in some implementations. The query would look like this Select col1, col2, col3 from <subquery> where (col1,col2) in <subquery> SQL Server doesn't seem to like that. Now I want to combine result of the queries so what do I need to do ? I want the output to be: t1. Viewed 298k times 33 . Related. If you don't want to change your database schema (and I would not for this simple query) you can just combine In this article, we’ll learn the SQL SELECT statement syntax, show you SQL query examples, and explore advanced techniques to help you use SELECT queries for data In your case, the two tables have completely different structures and cannot be joined. SQL Server : select the minimum value from table. Coupon FROM [CRM I have a problem splitting single column values to multiple column values. Using UNION: The UNION operator is used to combine the result sets of two or more SELECT queries. You have two choices here. It is the closest solution I can think of As a side note, weight actually represents a positive contiguous-range type. SQL select distinct but exhaustive columns. CSRName). MySQL select group of columns AS one alias. returns both the first name and last name as a result. Commented Jan 22, 2016 at 21:18. Modified 10 years, 10 months ago. You are using SQL Server, so this is easier than in Access: select A, B, C from (select t. name AS name, p. Finding maximum value from a table. qty It does not like you selecting two columns in the subquery. You could defend with COALESCE: SELECT COALESCE(col_a, '') || COALESCE(col_b, ''); In a table, a column may contain duplicate values; and sometimes, you only want to list the different (unique) values. select field1,field2,field3, count(*) from table_name group by field1,field2,field3 having count(*) > 1 To begin, let’s tackle the basics. How to select max value based on multiple fields and grouped by multiple fields. And as I said my solution doesn't return zero (0) but it creates a differentiation when the columns are/aren't equal. SQL- How to select data from two different table? Hot Network Questions Is It Better to Use 'a Staircase' or 'the Staircase' in This Example, and Why? Does the paper “A Heuristic Proof of P ≠ NP” actually prove that P ≠ NP? How do Unicode's ("Mathematical") "Flattened Parenthesis" and "Angle Bracket --This is another variation used to document a large database for conversion (Edited to --remove static columns) SELECT o. years FROM per What is it about your existing query that you don't like? If you are concerned that DISTINCT across two columns does not return just the unique permutations why not try it?. year, s. Campaign ,Table1. 3. The result should be: Cake_Column ----- I like chocolate cake with whipped_cream and a cherry. I'd like to avoid using a subquery, if possible. In case you wondering you can mix the case when writing queries. Works just as well as I have a table that has two columns, one of which will be NULL and one will not, what I would like to do is something like: SELECT (column1 OR column2) AS value SQL query, only select if column is not null else don't select. 1. SELECT DISTINCT column_name FROM table_name; This command retrieves all unique values from the column_name column of the table_name table. In case of NULL columns it is better to use IF clause like this which combine the two functions of : CONCAT and COALESCE and uses special chars between the columns in result like space or '_' SELECT FirstName , LastName , IF(FirstName IS NULL AND LastName IS NULL, NULL,' _ ',CONCAT(COALESCE(FirstName ,''), COALESCE(LastName ,''))) AS Contact If you can rule out null values, the good old (SQL standard) concatenation operator || is still the best choice, and @luis' answer is just fine: SELECT col_a || col_b; If either of your columns can be null, the result would be null in that case. In case of NULL columns it is better to use IF clause like this which combine the two functions of : CONCAT and COALESCE and uses special chars between the columns in result like space or '_' SELECT FirstName , LastName , IF(FirstName IS NULL AND LastName IS NULL, NULL,' _ ',CONCAT(COALESCE(FirstName ,''), COALESCE(LastName ,''))) AS Contact SQL Server requires that all non-aggregated columns be specified in GROUP BY. To make sure you don't filter out both rows when they are duplicated across columns, you need to a way to differentiate the repeats and include one of Notice that the "CustomerID" column in the "Orders" table refers to the "CustomerID" in the "Customers" table. If you know only know column numbers then use following to retrieve column names: "SELECT Column_name FROM user_tab_columns where table_name = 'MY_TABLE' and Column_id in (1,2,5);" Remove all non-duplicate rows based on a single column in a SQL Server table where there conditions on multiple columns for the select statement Hot Network Questions Is there short circuit risk in electric ovens lines with aluminum foil at the bottom Other Ways of Using GROUP BY with Multiple Columns. SELECT CONCAT(description,IFNULL(' Presumably, those columns are integer columns - which will be the reason as the result of the calculation will be of the same type. BEGIN TRANSACTION declare @cnt int declare @test nvarchar(128) -- variable to hold table name declare @tableName nvarchar(255) declare @cmd nvarchar(500) -- local means the cursor name is private to this code -- fast_forward enables some speed optimizations declare Tests cursor @Munkhjin - That does select those two rows. This function is used to replace NULL value with another value. ncastro's is better. Follow answered Oct 11, 2016 at 15:50. The final where just selects the rows that have more than one entry. id=5 ) countryname from dual; where dual is a dummy table with single column--anything just require table to view An explicit value for the identity column in table can only be specified when a column list is used and IDENTITY_INSERT is ON SQL Server 1 SQL Generate a table of multiple top X records, where top # comes from another table That is, I want to return rows where two of their columns match. state_name from state s where s. 162k 26 26 gold badges 249 249 silver badges How to divide on column in two column in select statement in SQL Server? 2. Hot Network Given your specification that you are selecting all columns, there is little difference at this time. Then, we can create the following This might be a silly question, and my suspicion is that I can't do this, but is there a construct in SQL that would allow me to do something like the following: SELECT whatever WHERE col1,col2 IN ((val1, val2), (val1, val2), ) I want to select data where two columns are in a set of pairs. If you simply want the most recent of the two date values then you can do: Select Max(DateModified), Max(DateDeleted) From Table Getting most recent date from multiple SQL columns. – Johan Commented Aug 31, 2011 at 11:47 | Show 1 more comment 4 CONCAT or CONCAT_WS Share SELECT t1. Multiple column ordering depends on both column's corresponding values: Here is my table example where are two columns named with Alphabets and Numbers and the values in these two columns are asc This helped me resolve how to do multiple counts and output them in a single SELECT statement with each count being a column. This example uses a common table expression (CTE) to return 3 sample records. etc. rawQuery("SELECT column1, column2, column3 FROM " + TABLE, null); Select columns from two tables. 6. sql database db2 in-clause Share Improve this You can get result distinct by two columns use below SQL: SELECT COUNT(*) FROM (SELECT DISTINCT c1, c2 FROM [TableEntity]) TE Share Improve this answer Follow answered Jul 16, 2013 at 3:42 2,018 1 If you still want If each case only allows one column, then you probably need two cases: select col1,col2, case when col3='E01089001' then (select 1 from dual) else (select 2 from dual) end, case when col3='E01089001' then (select 3 from How to Select rows based on two columns 3 Selecting rows from a table depending on a column 3 SQL select a column2 based on values in column1 in two rows 1 SQL Server : select values from multiple rows when one row met 1 SELECT COALESCE(CurrMonth. However, SQL's SELECT * already gets a lot a flak (@Guffa's Right, let's say my SQL is SELECT DISTINCT foo, bar from table. I have a sub-query which returns me the below data based on constraints. Name, ' ' ) As Z ) Select Name , FirstName. CORR causes PROC SQL to match the columns in table expressions by name and not by ordinal position. table First of all, a list of strings (List<string>) can only have one single string in an element not two (what you are trying to do here) changing the type to var would fix your exception but not sure SQL> Now we can use this function is a cool new Oracle 11g feature, virtual columns. Here is slightly modified version. How do I accomplish this? DISTINCT works on the entire row, not a specific column. By adding more columns in the GROUP BY clause, more detail and more specific subsets of the data is created in query results; therefore, gaining higher It should return something that differentiate completely from the context of that two columns values. Ask Question Asked 13 years, 10 months ago. The SQL SELECT Learn how to easily select multiple columns from a database table in SQL, or select all columns from a table in one simple query. – Micah B. id = c. SELECT MAX for multiple. The first is Test1 and second is Test2. So, if you want to sort first by order then by category, you would use: select * from myTable order by int_order, int_category_id See the mySql order by documentation. Now, let’s extend this idea to multiple columns You can GROUP BY multiple columns, to get the count of each combination. It is common to use GROUP BY multiple columns when two or more of the columns in a query result form a hierarchy of classifications with several levels. I. Cooler, easier, anyway. How to do SELECT in a column with different parameter and aliases? Hot Network Questions This way can help you. Ask Question Asked 10 years, 10 months ago. 0. I have a variable called @status which I set before this select statement: Select ordr_num as num, ordr_date as date, ordr_ship_with as shipwith From order where ordr_num = @ordrNum I only want to select ordr_ship_with column if @status <> 'Cancelled', otherwise I want to select null for shipwith. However, one other important point is that a tuple is counted only if none of the individual values in the tuple is null. I have 4 tables: order, order_product, product, product_description. Select things from three different tables with inner join. 4. g. Check if either column is null. The SQL statement below retrieves identical rows based on the 'agent_code' and 'ord_amount' columns from the orders table How can I perform operations such as Multiplying and Subtracting two columns in SQL Server? Payment PK - PaymentID FK - PaymentTypeID FK - OccupiedApartmentID **- InitalPayment - MonthlyRate - Balance** - PaymentDate sql; sql-server; Share. Date`) AS `Last. *, count(*) over (partition by A, B) as cnt from t ) t where cnt > 1; This use of count(*) is as a window function. SQL Query Multiple Columns Using Distinct on One Column Only. DATE3%TYPE; SELECT T1. Id ColumnOne ColumnTwo ColumnThree 1 a b c 2 d e f 3 g h i W3Schools offers free online tutorials, references and exercises in all the major languages of the web. For example, the For the MySQL fans out there, I like the IFNULL() function. col1,table. I have two tables in my SQL Server database. Name, YTD. mysql; sql; Share. ShipDate) As ShipDate, MAX(Orders. One approach to unpivoting data is to combine the apply operator with a table value constructor. With that, the solution looks like. It is counting the number of rows with the same value of A and B. Changes are noted as code commentary. In light of this (and how representation add zeroes when more precision is added), you shouldn't be using an inclusive upper-bound, you should be using an exclusive upper-bound. select index_imsid, SUM(weighted_value) sumWeightedValue, (select top 1 percentof from [v_PlanPerProvider1] where [PLAN_RANK]=1) percentof (select top 1 [Plan_Name_OR_Payment_Type] from [v_PlanPerProvider1] where [PLAN_RANK]=1) Example: SELECT with DISTINCT on two columns. , SELECT `LATITUDE`, (LATITUDE) + ' ' + LONGITUDE+) AS point FROM incident_google but it is not working. So I wonder if that's the Learn how to concatenate two columns in SQL with this detailed guide. Learn how to concatenate two columns in SQL with this detailed guide. This is because, when we group by two columns, it is saying "Group them so that all of those with the same Subject and Semester are in the same group, and then calculate all the aggregate functions (Count, Sum, Average, etc. SQL Select results based on two rows with different condition. So, the simple way would be to use CASE statements to convert the values you don't want counted to NULL. Name as Data_Type , t. ascending order by i1 first, then by i2 second). This is sql select statement by choosing min timestamp value. SELECT ClientID, ServerID, MAX(`Last. Apply an aggregate function to every column that you want to have in your result. ) . That is. asdjja asb (asdfas) asd asd and I need the output something Subtract values from two columns in sql query Ask Question Asked 6 years, 5 months ago Modified 6 years, 5 months ago Viewed 123k times 9 There are two columns and i want to subtract them. coName, a. Commented Jan 25, 2021 at 20:38. 100 1 1 In SQL Server 2008R2 I have two tables, CONFIG_DATA and CNA_LIST: CONFIG_DATA has two fields: ID [varchar(20)] Address [int] 01 141516 02 132132 I am trying to concatenate multiple columns in a query in SQL Server 11. 1k 6 6 gold badges 61 61 silver badges 91 91 bronze badges. I'm using DB2. DATE1%TYPE; V_DATE2 T1. image, p. The most common method to concatenate two columns in SQL is by using the CONCAT() function. When using GROUP BY x, y statement, it fetches rows for each unique pair of values of column x and y. Just list the columns you want to select as you would in any query: SELECT table1. Getting MIN date. crowley crowley. I tried this. ahLastName Note that you can't reference columns by aliases assigned to them in the SELECT clause (e. period, s. The table is simple. col, 1, column1, 2, column2) from table t join (select 1 as SQL - Selecting two Columns with two different conditions Ask Question Asked 3 years, 6 months ago Viewed 2k times 1 I'm trying to select 2 columns with 2 different conditions on the same table with a I need to display the I just want to select 2 columns from a MSSQL DB using LINQ. See more linked questions. The UNION operator could be used. group, subGroup grp-A, sub-A grp-A, sub-A grp-A, sub-B grp-B, sub-A grp-B, sub-B grp-B, sub-B I am trying to get the number of records for each unique couple group/subGroup. e. Commented Jul 10, 2013 at 16:18. Share. I have to combined these two columns as point values. If you use SELECT * you are going to get any new columns added to the table, even though in all likelihood, your code is not prepared to use or present that new data. Commented Nov 5, 2010 at 16:24. column_name ,t2. in Teradata, they have the format . Total AS Total, YTD. This formula can be used to get the minimum value of multiple columns but its really messy past 2, min(i,j,k) would be min(i,min(j,k)) Share. ClubId FROM Example: I have a table that has several columns I query, but I want to quickly omit a text column or two. Commented Aug 31, 2011 at 11:47 | Show 1 more comment. For example, to concatenate a user’s first and last name, I’d use: SELECT CONCAT(first_name, ' ', last_name) AS full_name Select multiple columns from one alias. Here we have no concern with data of that table. Therefore your GROUP BY clause should look like this: GROUP BY c. Use this query as an example (notice how the select is on the same table aliased as 2 different tables): a. How can I do in one select with multiple columns and put each column in a variable? Something like this: --code here V_DATE1 T1. Viewed 22k times 9 . SELECT * FROM tabA OUTER UNION CORR SELECT * FROM I'd suggest to group your resultset by the combination of Employee_Num and Client_num, computing synthetic aggregate columns as you need them. Try it and see. previous) as difference FROM #TEMP1 t1 Note, this style of selection is considered bad practice because it requires the query plan to reselect the value of the first two If you don't want to use union because you would have to repeat the same where clause multiple times, there is a [very bad] work around for that: select decode(j. 00. In one joined table (in our example, There's a couple different ways to get it. prefix on all columns to be sure there aren't any ambiguities where fields with the same name exist in both tables. test-a1, test-a2 test-b1, test-b2 test-c1, test LATITUDE and LATITUDE are my two columns. Columns that do not match by name are excluded from the result table, except for the OUTER UNION operator. How to select row values for max(2 columns) 0. SQL Divide a field If. description from country c where c. 3393. SELECT tblFruit_ID, tblFruit_FruitType, tblFruit_FruitName FROM ( SELECT tblFruit_ID, tblFruit SELECT /* your selected fields, joins here */ WHERE -- (derivedtbl_1. I am trying to write a SQL query that selects multiple columns from a table with the distinct operator on one column only. The CORRESPONDING keyword is used only when a set operator is specified. I came up with a query which first joins the flights on the fairport column and the airports. RoleId,derivedtbl_1. SQL select and case combined. SELECT *, p. These are my results: For closures and closure like things where you need to compare two different columns, you can use joins. When using GROUP BY x statement, it fetches rows for each distinct value of column x. In my situation, I have a column of descriptions which is NOT NULL, and a column of serial numbers which may be NULL This is how I combined them into one column:. It's a bad idea for lots of reasons. SELECT Name, COUNT(CASE WHEN Occurred_Date >= '2010-01-01' AND Occurred_Date < '2011-01-01' THEN Occurred_Date ELSE NULL END) AS [YTD] Is it possible to write a select query in a manner such as: SELECT * FROM PLAYERS WHERE (First_Id, Second_Id) IN ((1,1), (1,2) and (1,3))? If there is a way to write the SQL similar to the above I would like to know. SQL (for mysql) getting good results, but need to exclude some columns. SELECT Orders. OrderID, MAX(Orders. SQL select with multiple counts from the same column. if you do this: SELECT 1 / 2 you will get 0, which is obviously not the real answer. To query data from multiple columns, you specify a list of comma-separated column names. The columns depart and arrive are dates of departure and arrival. period, p. I count values from multiple columns like this: SELECT COUNT(column1),column1 FROM table GROUP BY column1 SELECT COUNT(column2),column2 FROM table GROUP BY column2 SELECT COUNT(column3),column3 SQL Code: SELECT agent_code FROM agents WHERE working_area='Bangalore'; Relational Algebra Expression: Relational Algebra Tree: Output: AGENT_CODE If you’d like to get data stored in tables joined by a compound key that’s a primary key in one table and a foreign key in another table, simply use a join condition on multiple columns. I need some sort of TO_CHAR statement that does ([column] "some text" [column]) "new_column_name"; select * from table where ID in (select ID from table group by ID having count(*) > 1) This works fine. Modified 2 years, 6 months ago. Commented Jan 25, 2011 at 19:23. However, if the unique values to be counted are stored in multiple columns, SQL provides a more advanced alternative called the COUNT(distinct sql) using CONCAT() function: SELECT column_name1, COUNT(DISTINCT CONCAT(column_name2,column_name3)) as count_distinct_combination FROM table_name GROUP BY column_name1; How to select multiple columns from a table excluding some columns? I tried: SELECT *!=[column name i want to exclude] from tablename; it didn't work. qty,t2. SELECT item_ID, CASE WHEN item_Type = 5 THEN item_info ELSE item_info2 END, field_name, another_field_name select ( select s. SQL Select Query Across 3 Tables. Value , Case When ThirdName Is Null Then SecondName SQL Server requires that all non-aggregated columns be specified in GROUP BY. Database: Postgres; Table name: records Has 4 columns Year | Dept | Expense | Month; So per year there can be up to one record for each month / per department. How to select this rows based on two columns and a min function. Improve this answer. xtype = c. From this interim resultset you can derive the table with the desired output structure, filling columns by appropriately combining the computed aggregates. price, unpack ( (select PACK (CCSID How do I SELECT a distinct combination of two columns in SQL? Use the SELECT DISTINCT column1, column2 syntax. Is there a way to specify values for an IN clause that represents multiple rows as illustrated. SQL queries always retrieve a static, predefined number of columns. @Bobby, select * is an SQL anti-pattern. How to combine these two columns as one? How to combine output of two or more SELECT statements, I have multiple tables which are having some data that I need to fetch them so I write multiple SELECT query. Commented Dec 20, 2014 at 3:53 @IbrahimOudah The answer told me what to do and Jody's comment why I SQL: Select Multiple Columns with Max() on calculated values. Mysql: Selecting values What you need is a split user-defined function. 37. or table2. ClubId) IN EXISTS ( -- actually you can change these two fields to * (asterisk ) or 1, whatever, even your name, what matters only is the testing of existence(see below) SELECT Portal_GroupRoles. qty,t3. It is the closest solution I can think of Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company If you specify a column name for the COUNT function, it doesn't count NULL values. SELECT TOP 3 1 AS First, 2 AS Second, 3 AS Third FROM Any_Table_In_Your_DataBase Any_Table_In_Your_DataBase: any table which contains more than 3 records, or use any system table. 2. 21. This function is incredibly flexible, allowing me to merge two or more strings into one. For example, the These syntax works with MS SQL Server 2008 R2 Express Edition. 24. – Ibrahim Oudah. JPA @Query issues with the returned object. column_name FROM dbo. Yes, you can combine columns easily enough such as concatenating character data: select col1 | col 2 as bothcols from tbl or adding (for example) numeric data: select col1 + col2 as bothcols from tbl In both those cases, you end up with a single column bothcols, Select ALL columns. SQL - Dividing two values. In DB2 for z/OS, use pack and unpack functions to return multiple columns in a subselect. previous ,t1. CASE WHEN A=X AND B=Y THEN END What you are trying to do in your example is return a table (2 columns) into a resultset that expects one column: col1, col2, (col3,col4). For Example: Name ----- abcd efgh ijk lmn opq asd j. There is a column RegNo in both tables. Then, use two subqueries to identify the row numbers for 1c and 4a. That is, there's no such thing as "exactly a pound", it's really "the closest we can get is one pound". – Joe Stefanelli. lskbux mvjcc qmxseey zskto jvgar xrzi nokq bsibi txgmk qmsx