In the following example, the source database has a stored procedure that takes an input parameter of an employee ID number, and returns an output parameter of the employee name. In addition, a return value of 0 is returned as a notification that the stored procedure completed successfully.

The database table that contains employee IDs and names appears as follows:

The stored procedure receives the employee ID 101 as an input parameter, and returns the name Bill Takash. Depending on how the mapping calls this stored procedure, any or all of the IDs may be passed to the stored procedure.

Since the syntax varies between databases, the SQL statements to create this stored procedure may vary. The client tools used to pass the SQL statements to the database also vary. Most databases provide a set of client tools, including a standard SQL editor. Some databases, such as Microsoft SQL Server, provide tools that create some of the initial SQL statements.