Creating and using variables
In T-SQL, to create a variable you use the DECLARE statement. The variables must have an at sign (@) as their first character. Like most things in T-SQL, variables are not case sensitive. To assign a value to a variable, you can either use the keyword SET or a SELECT statement, then the variable name followed by an equal sign and a value.
This exercise is part of the course
Intermediate SQL Server
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
-- Declare the variable (a SQL Command, the var name, the datatype)
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-- Set the counter to 20
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-- Select the counter
SELECT @counter