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How do I perform an IF. . . THEN in an SQL SELECT? SELECT CASE WHEN Obsolete = 'N' or InStock = 'Y' THEN 1 ELSE 0 END as Saleable, * FROM Product CASE statements can be embedded in other CASE statements and even included in aggregates SQL Server Denali (SQL Server 2012) adds the IIF statement which is also available in access (pointed out by Martin Smith):
How to select unique records by SQL - Stack Overflow When I perform SELECT * FROM table I got results like below: 1 item1 data1 2 item1 data2 3 item2 data3 4 item3 data4 As you can see, there are dup records from column2 (item1 are dupped) So how co
Insert results of a stored procedure into a temporary table select * into tmpBusLine from exec getBusinessLineHistory '16 Mar 2009' Output message: Msg 156, Level 15, State 1, Line 2 Incorrect syntax near the keyword 'exec' I have read several examples of creating a temporary table with the same structure as the output stored procedure, which works fine, but it would be nice to not supply any columns
mysql - SELECT * WHERE NOT EXISTS - Stack Overflow SELECT * from employees WHERE NOT EXISTS (SELECT name FROM eotm_dyn) So basically I have one table with a list of employees and their details Then another table with some other details, including their name Where there name is not in the eotm_dyn table, meaning there is no entry for them, I would like to see exactly who they are, or in other words, see what exactly is missing The above
sql - Efficiently convert rows to columns - Stack Overflow I'm looking for an efficient way to convert rows to columns in SQL Server, I heard that PIVOT is not very fast, and I need to deal with lot of records This is my example: Id Value ColumnName 1 John
sql - How to select only the first rows for each unique value of a . . . In the table, one customer like John Smith can have multiple addresses I need the SELECT query for this table to return only first row found where there are duplicates in 'CName' For this table it should return all rows except the 3rd (or 1st - any of those two addresses are okay but only one can be returned) Is there a keyword I can add to the SELECT query to filter based on whether the
How to select the last record of a table in SQL? - Stack Overflow This is a sample code to select all records from a table Can someone show me how to select the last record of that table? select * from table When I use: SELECT * FROM TABLE ORDER BY ID DESC LIMI
sql - select * vs select column - Stack Overflow Select column is more performatic of select *, but if you is developing an oriented object system, then you will like use object properties and you can need a properties in any part of apps, then you will need write more methods to get properties in special situations if you don't use select * and populate all properties