|
- 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 - 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
- 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: 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 '%' + @
- 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 - Select first 10 rows only? - Stack Overflow
How do I select only the first 10 results of a query? I would like to display only the first 10 results from the following query: SELECT a names, COUNT(b post_title) AS num FROM
- sql - Find all tables containing column with specified name - Stack . . .
@Revious INFORMATION_SCHEMA views included in SQL Server comply with the ISO standard definition for the INFORMATION_SCHEMA , sys columns, sys tables is Microsoft Sql Server specific
- How to calculate percentage with a SQL statement
Due to precedence of SQL statements it will be the same however, due to data types if using 100 you can still get the result rounded to 0 decimals you desire for the % where as if you put it after the division operation you would have to make sure that you cast to a data type that can handle the decimal places otherwise you will end up with
|
|
|