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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
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 '%' + @
What is the use of the square brackets [] in sql statements? The Microsoft book for SQL course says "You should use two-part names to refer to tables in SQL Server databases, such as Sales Customer" so they don't ask to surround namespace with square bracket but if I remember correctly, surrounding them puts it in the right namepsace
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
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