Nov 8, 2013 · <> operator means not equal to in MS SQL. It compares two expressions (a comparison operator). When you compare nonnull expressions, the result is TRUE if the left operand is not equal to the right operand; otherwise, the result is FALSE. If either or both operands are NULL, see the topic SET ANSI_NULLS (Transact-SQL). See here : Not Equal …

Oct 9, 2014 · In SQL, anything you evaluate / compute with NULL results into UNKNOWN This is why SELECT * FROM MyTable WHERE MyColumn != NULL or SELECT * FROM MyTable WHERE MyColumn <> NULL gives you 0 results. To provide a check for NULL values, isNull function is provided. Moreover, you can use the IS operator as you used in the third query.

Apr 6, 2009 · 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.

Apr 29, 2014 · sql server: + (infix operator), concat ( vararg function ) Edit : Now Azure SQL also supports ANSI SQL standard || operator for string concatenation. Docs link.

I configured successfully SSL on Microsoft SQL Server 2012 Express Edition for the purpose of encrypting external network connections to the database that are made through Internet. For performance

May 6, 2017 · Both NOT operator and != almost serve a similar purpose.Both are used in Where clause of an sql query. NOT operator shows records when a particular condition is not true.

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.

via any available SQL client (i.e. even over ODBC or JDBC connection) to rectify this problem. However, the connection has to be in autocommit mode and you have to have admin privileges to execute this command.

Sep 23, 2015 · END; Checking SQL%FOUND or SQL%NOTFOUND have no meaning in the case of select into statement, because if the select statement returns no rows it will always raise no_data_found exception, except, if that select statement invokes aggregate function, it will always return data or null if no rows has been selected.

Sep 15, 2008 · 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 …