sql server - what does the @@ means in MSSQL when used in @@AnyExpression -
i want know meaning of @@ in mssql saw in may forms
@@version @@servername i don't understand @@ in @@expression stands ?
it means look (function) (sql server) scheme function , syntax usage follows rules sql server functions.
in before versions of sql server called global variables. not behave variables. functions, per sql server documentation.
sql-server
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