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- sql - NOT IN vs NOT EXISTS - Stack Overflow
Which of these queries is the faster? NOT EXISTS: SELECT ProductID, ProductName FROM Northwind Products p WHERE NOT EXISTS ( SELECT 1 FROM Northwind [Order Details] od WHERE p
- What does lt; gt; (angle brackets) mean in MS-SQL Server?
In My Query one place some other developer using <> (angle brackets) What does it mean ?
- Should I use != or lt; gt; for not equal in T-SQL? - Stack Overflow
Yes; Microsoft themselves recommend using <> over != specifically for ANSI compliance, e g in Microsoft Press training kit for 70-461 exam, "Querying Microsoft SQL Server", they say "As an example of when to choose the standard form, T-SQL supports two “not equal to” operators: <> and != The former is standard and the latter is not
- SQL: IF clause within WHERE clause - Stack Overflow
Is it possible to use an IF clause within a WHERE clause in MS SQL? Example: WHERE IF IsNumeric(@OrderNumber) = 1 OrderNumber = @OrderNumber ELSE OrderNumber LIKE '%' + @
- How do I perform an IF. . . THEN in an SQL SELECT?
The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server SELECT CAST( CASE WHEN Obsolete = 'N' or InStock = 'Y' THEN 1 ELSE 0 END AS bit) as Saleable, * FROM Product You only need to use the CAST operator if you want the result as a Boolean value If you are happy with an int, this works: SELECT CASE WHEN Obsolete = 'N' or InStock = 'Y' THEN 1 ELSE 0 END
- SQL Server CASE . . WHEN . . IN statement - Stack Overflow
On SQL server 2005 I am trying to query this select statement SELECT AlarmEventTransactionTableTable TxnID, CASE AlarmEventTransactions DeviceID WHEN DeviceID IN( '7
- sql - Copy data into another table - Stack Overflow
How to copy append data from one table into another table with same schema in SQL Server? Edit: let's say there is a query select * into table1 from table2 where 1=1 which creates table1 wi
- SQL to find the number of distinct values in a column
SQL to find the number of distinct values in a column Asked 17 years, 2 months ago Modified 2 years, 7 months ago Viewed 826k times
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