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)
___
-- Set the counter to 20
___
-- Select the counter
SELECT @counter