Use of sp_executesql

The "sp_executesql" is used for executing the sql statements that are build dynamically with or without parameters.

The below example shows how to execute by dynamically passing the employee id.

DECLARE @EmployeeNumber int;
DECLARE @SQLString nvarchar(500);
DECLARE @Parameter nvarchar(500);

SET @SQLString = 'SELECT * FROM EMPLOYEE WHERE EMPLOYEEID = @EmployeeID';
SET @Parameter = '@EmployeeID int';

SET @EmployeeNumber = 2;
EXECUTE sp_executesql @SQLString, @Parameter,
@EmployeeID = @EmployeeNumber;

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