Declare a varchar variable : Declare Variables « Transact SQL « SQL Server / T-SQL

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SQL Server / T-SQL » Transact SQL » Declare Variables   Declare a varchar variable 1> -- DATALENGTH(): returns the number of bytes used to manage a value. 2> 3> DECLARE @Value VarChar(20) 4> SET @Value = 'abc' 5> 6> SELECT DATALENGTH(@Value) 7> GO -----------           3 (1 rows affected) 1>                     Related examples in the same category 1.  Declare a variable 2.  Use declared variable in SQL statement 3.  Declares a local variable (@intvar) and then assigns a value to the variable 4.  Table Variables

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