To create a new stored procedure, right-click the Stored Procedures node under the connection node in Server Explorer. From the node's context menu, choose the Create Routine command. This command opens the SQL Editor.

To create a new stored function, right-click the Functions node under the connection node in Server Explorer. From the node's context menu, choose the Create Routine command.

To modify an existing stored routine (procedure or function), double-click the node of the routine to modify, or right-click this node and choose the Alter Routine command from the context menu. Either of the commands opens the SQL Editor.

To create or alter the routine definition using SQL Editor, type this definition in the SQL Editor using standard SQL. All other routine properties can be set in the Properties window. These properties are:

Some of these properties can have arbitrary text values, others accept values from a predefined set. In the latter case, set the desired value using the embedded combo box.

You can also set all the options directly in the SQL Editor, using the standard CREATE PROCEDURE or CREATE FUNCTION statement. However, it is recommended to use the Properties window instead.

To save changes you have made, use either Save or Save All buttons of the Visual Studio main toolbar, or press Control+S.

To observe the runtime behavior of a stored routine and debug any problems, use the Stored Procedure Debugger (available in Connector/Net 6.6 and higher). See Section 22.2.3.8, "Debugging Stored Procedures and Functions" for details.