Db2 Stored Procedures Error Handling
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Db2 Sql Stored Procedures
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Db2 Stored Procedures Syntax
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Db2 Stored Procedures Interview Questions
of 4 Thread: Error Handling for called stored procedure db2 Tweet Thread Tools Show Printable Version Subscribe to this Thread… Search Thread Advanced Search Display Linear Mode http://database.ittoolbox.com/groups/technical-functional/db2-l/exception-handling-in-stored-procedures-for-db2-1060381 Switch to Hybrid Mode Switch to Threaded Mode 06-20-14,03:22 #1 sneha.k17 View Profile View Forum Posts Registered User Join Date Jun 2014 Posts 2 Unanswered: Error Handling for called stored procedure db2 Am new to db2 and got stuck in an issue. I have a procedure try_sk as given below: CREATE or replace PROCEDURE tempdb.try_sk(in var1 integer,out http://www.dbforums.com/showthread.php?1702210-Error-Handling-for-called-stored-procedure-db2 o_var1 integer,out o_error varchar(60) ) specific tempdb.try_sk BEGIN --declare ct_date date; declare i_var1 integer; declare v_sqlstate char(5) default '00000'; declare v_sqlcode integer; declare sqlstate char(5) default '00000'; declare sqlcode integer; declare v_tracker varchar(50); declare V_EXIT_MESSAGE varchar(70); declare o_error varchar(70); DECLARE continue HANDLER FOR SQLEXCEPTION,SQLWARNING,NOT FOUND BEGIN VALUES (SQLCODE,SQLSTATE) INTO V_SQLCODE,V_SQLSTATE;-- SET V_EXIT_MESSAGE = 'ERRORQLSTATE-'|| TRIM(V_SQLSTATE) || ',' || TRIM(CHAR(V_SQLCODE)) || ' AT ' || v_tracker;-- SIGNAL SQLSTATE VALUE V_SQLSTATE SET MESSAGE_TEXT = V_EXIT_MESSAGE;-- END; /*DECLARE GLOBAL TEMPORARY TABLE SESSION.t_error ( error varchar (70) ) ON COMMIT PRESERVE ROWS WITH REPLACE NOT LOGGED IN PDPG_USERTEMP; insert into session.t_error(error) values(v_exit_message); commit;*/ SET V_TRACKER = 'divide by var1'; set o_error = v_exit_message; begin declare c1 cursor with return to caller for select o_error from sysibm.sysdummy1; open c1; end; select 1/var1 into i_var1 from sysibm.sysdummy1; set o_var1 = i_var1; END here i am just dividing 1 by the input parameter we pass while calling proc. In case 0 is passed as input parameter(call try_sk(0,?,?), i get the below error message as desired. [IBM][CLI Driv
+ Ask a Question Need help? Post your question and get tips & solutions from a community of 418,478 IT Pros & Developers. It's quick & easy. Stored Procedure https://bytes.com/topic/db2/answers/184685-stored-procedure-handling-all-error-code-single-condition - Handling all error code with a single condition !! P: n/a vj http://www.ibmbigdatahub.com/blog/developing-error-free-native-stored-procedures Please let me know how can i handle any kind of error conditions with a single (condition and continue handler). I need to catch any kind of exception thrown in the procedure with a single ( declare condition and a declare continue handler) Thanks in advance. Vijay Nov 12 '05 #1 Post Reply Share this stored procedure Question 3 Replies P: n/a Serge Rielau vj wrote: Please let me know how can i handle any kind of error conditions with a single (condition and continue handler). I need to catch any kind of exception thrown in the procedure with a single ( declare condition and a declare continue handler) Thanks in advance. Vijay That should do it: DECLARE CONTINUE HANDLER FOR SQLWARNING, SQLEXCEPTION, NOT FOUND .... db2 stored procedure Keep me on record for saying that this is a really bad idea. Cheers Serge -- Serge Rielau DB2 SQL Compiler Development IBM Toronto Lab Nov 12 '05 #2 P: n/a amurchis I have to agree with Serge here. For instance, if your procedure gets a -1224 SQLCODE (no database agent -- typically meaning your connection has been forced), coding up a continue handler, especially if you're processing result data inside the procedure, can mean your procedure will loop forever. The negative offshoot of that is that at best you'll have an db2fmp process orphaned on your system (for any FENCED procedure) or at worst the agent won't be able to be forced off as control is inside the procedure (for any NOT FENCED LANGUAGE C procedure, or SQL procedures created pre-V82 ie FP7). Serge Rielau wrote: vj wrote: Please let me know how can i handle any kind of error conditions with a single (condition and continue handler). I need to catch any kind of exception thrown in the procedure with a single ( declare condition and a declare continue handler) Thanks in advance. Vijay That should do it: DECLARE CONTINUE HANDLER FOR SQLWARNING, SQLEXCEPTION, NOT FOUND ... Keep me on record for
Papers & Reports Infographics & Animations Presentations Galleries Subscribe × Blogs Developing Error-Free Native Stored ProceduresEnterprise IT can apply SQL Procedural Language best practices to optimize DB2 for z/OS native stored procedures May 30, 2014 by Tony Andrews Stored procedures in relational database management systems (RDBMSs) have been around a long time, and they merely call another program that performs some action or actions for the calling program. There are many benefits for having a called stored procedure do some of the work. It helps minimize network traffic, reduce maintaining code by keeping logic and processing in one place, and tighten security by granting callers the authorization to perform a process or query data only through a stored procedure. Stored procedures can be written in a number of different languages, and they can be called from any language that can execute an SQL statement because the stored procedure is initiated—called—though an SQL call command. Since the release of IBM® DB2® Version 9 for the IBM z/OS® platform, the SQL Procedural Language (SQL PL) has been enhanced to code stored procedures, which can provide many benefits. There are several best practices that developers can take advantage of for coding stored procedures on the DB2 for z/OS platform. Several specific practices for developing native stored procedures—DB2 executable code objects that can be called by other programs—use SQL PL on the z/OS platform. Since native stored procedures were first introduced in DB2 Version 9, an increasing number of IT departments are implementing and rewriting stored procedures in SQL PL. But are they doing it correctly? Are they using a good set of standards, guidelines, and best practices? There are a number of ways IT organizations can improve on their practices and ensure their stored procedures are complete, correct, consistent, and error free. And they have several reasons for making a move to native stored procedures: A simplified build-and-deploy process: No external address space environment or compilers are needed. The IBM Data Studio tool provides a well-suited editor window and deployment for SQL PL, making it very easy to code, test, debug, and deploy. Enhanced performance, at times: There is no guarantee that a native stored procedure w