Menu Close

What is a DB2 stored procedure?

What is a DB2 stored procedure?

A stored procedure is a compiled program that can execute SQL statements and is stored at a local or remote DB2® server. A single call to a stored procedure from a client application can access the database at the server several times.

What is DB2 COBOL?

COBOL-DB2 applications are those applications that include both COBOL and DB2. Embedded SQL statements work like normal SQL statements with some minor changes. For example, the output of a query is directed to a predefined set of variables which are referred as Host Variables.

What is external stored procedure in DB2?

An external stored procedure is a procedure that is written in a host language and can contain SQL statements. It can include static or dynamic SQL statements, IFI calls, and DB2® commands that are issued through IFI. You prepare external stored procedures as you would normally prepare application programs.

How do I create a stored procedure in DB2?

Set up the workbench environment for stored procedure development. Connect to the GSDB sample database and create a data development project to work with the database. Create an SQL stored procedure. Deploy, debug, and run the stored procedure from the workbench.

Where are stored procedures stored in Db2?

A stored procedure is a compiled program that can execute SQL statements and is stored at a local or remote DB2® server.

Why stored procedures are used?

A stored procedure provides an important layer of security between the user interface and the database. It’s easier to code stored procedures than to build a query through a GUI. Use of stored procedures can reduce network traffic between clients and servers, because the commands are executed as a single batch of code.

How a COBOL DB2 program is executed?

The DBRM is bound to the DB2 region (environment) in which the COBOL will run. This can be done using the IKJEFT01 utility in a JCL. After the bind step, the COBOL-DB2 program is run using IKJEFT01 (again) with the load library and DBRM library as the input to the JCL.

What database does COBOL use?

DB2 is similar to the SQL but has some advanced features and is primarily used for storing large amounts of Mainframe application data. In the context of Database Interface, COBOL includes the following terms: Embedded SQL. DB2 Application Programming.

How do you call a stored procedure in mainframe?

Invoking Stored Procedures: In mainframes environment, A stored procedure can be invoked from an application program USING A CALL or it can be invoked from the Command Line. Parameters can be supplied to the above SP if they are declared while creating SP.

What is result set in Db2 stored procedure?

In DB2, a stored procedure can process result set(s) returned by another stored procedure using RESULT_SET_LOCATOR type, ASSOCIATE RESULT SET LOCATORS and ALLOCATE CURSOR FOR RESULT SET statements. In Oracle you can use SYS_REFCURSOR type to pass result sets between stored procedures.

What should intern call a COBOL / DB2 stored procedure?

This procedure should intern call a COBOL program.In my shop we used to call it SL1 and SPS components. Ths SL1 component will have the declarations, which will be internally passing the values to the SPS component, which is actually a COBOL-DB2 program.

Can you use COBOL CALL statement in DB2 V7?

DB2 V7 supports COBOL stored procedures, and can successfully use the COBOL CALL statement in a Main COBOL stored procedure to CALL a COBOL subprogram. Please note, the separate sub module can be called by the COBOL CALL statement, not the SQL Call statement used to call a separate stored procedure.

Can a COBOL sub module be called in SQL?

Please note, the separate sub module can be called by the COBOL CALL statement, not the SQL Call statement used to call a separate stored procedure. Calling sub type stored procedures is only supported in db2 V7 when the stored procedure is an SQL or C language stored procedure, COBOL is not a supported language for sub type stored procedures.

How does the stored procedure work in DB2?

Searches the DB2® catalog table SYSTABLES for all tables in which the value of the CREATOR matches the value of input parameter SCHEMA. The stored procedure uses a cursor to return the table names.