Embedded Sql Error Codes
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act more like RPG. A case in point is with exception/error handling. Embedded SQL assumes you are using SQLCODE or SQLSTATE to check whether sql server error codes or not each statement worked. In RPG, the equivalent would be have
Oracle Sql Error Codes
an E extender on every file operation code and checking the %error() after the operation code. Wouldn't it be sql 2005 error codes nice if you could get embedded SQL to cause the program to fail if it gets an unexpected error--just like RPG? Well, you can, just by adding one line of db2 sql error codes list code after each SQL statement. Figure 1 shows how the check_SQLState() subprocedure is called after a statement. The call to check_SQLState() after the second insert statement would cause the program to fail because the insert is attempting to insert a duplicate key. The call to check_SQLState() after the Fetch shows how the subprocedure can be used to detect an end
Ibm Db2 Sql Error Codes List
of file/row not found condition. /free exec SQL insert into empa values(1, 'Paul'); check_SQLState(); exec SQL insert into empa values(1, 'Fred'); check_SQLState(); exec sql fetch next from C001 into :data ; if (check_SQLState()); // It was EOF endIf; *inLR = *on; /end-Free Figure 1: Using the SQL exception/error handler. Figure 2 shows the results in the job log after a call to check_SQLState() fails. The message that causes the program to fail is that the call to check_SQLState ended in error but there is an earlier message that shows that a duplicate key value specified followed by the same message preceded by the SQLSTATE value (this message is sent by the check_SQLState() subprocedure). Duplicate key value specified. 23505 Duplicate key value specified. Function check. CPF9897 unmonitored by SQLCATCH at statement 0000003600, instruction X'0000'. The call to check_SQLS ended in error (C G D F) Figure 2: Result of a program failure in the joblog. So what exactly does the check_SQLState() subprocedure do? Based on the value of SQLSTATE, it will either: Do nothing, because everything is OK. Send a dia
handling 17 replies Latest Post - 2014-05-14T20:37:14Z by Damery Display:ConversationsBy Date 1-18 of 18 Previous Next Damery 270002XNE4 71 Posts Pinned topic SQLRPGLE exception handling 2013-11-21T13:21:53Z | Tags: sql error codes in db2 mainframe Answered question This question has been answered. Unanswered question This question has sybase sql error codes not been answered yet. Is there a Best Practice for handling SQL errors/exceptions? Is there a way to
Informix Sql Error Codes
catch those in a monitor group? Or is the only way within the SQL status code manual handling? It appears that right after running your SQL statement you http://www.itjungle.com/fhg/fhg040214-story01.html need to check the SQL Status code and then create a manual error message and pass that back up the process flow till you reach a program to handle it. Is this about it? Log in to reply. scott_klement 2700007QFX 262 Posts ACCEPTED ANSWER Re: SQLRPGLE exception handling 2013-11-22T05:57:44Z Embedded SQL sets the SQLSTATE and SQLCODE variables with the https://www.ibm.com/developerworks/community/forums/html/topic?id=d2c49b79-5a01-46f7-9a11-b9de0f2b0e02 status of each statement. It does not send exceptions to your program, so if you do not explicitly check for an error, the program will continue running after an error occurs. The code to check for an error depends somewhat on the statement you ran and what your program plans to do with it, but typically it looks something like this: if %subst(sqlstt:1:2)<>'00' and %subst(sqlstt:1:2)<>'01'; // an error occurred. endif; The SQLSTATE variable (SQLSTT for short) contains a 5A value. The first two characters identify the type of status, and the last 3 characters identify a specific error code. An SQLSTATE value that begins with 00 means "success", and 01 means "successful, but with a warning". So if the statement finished with these, it has run successfully. Anything else indicates a failure of some sort. One easy way to deal with this is to write a subprocedure that accepts the SQLSTATE as a parameter. I used to do this at my previous employer, unfortunately, I no longer have access to the code. If I recall co
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changes using the SQLSTATE status variable, as well as the SQL Communications Area (SQLCA) and the WHENEVER directive. You also learn how to diagnose problems using the Oracle Communications Area (ORACA). This chapter contains the following topics: The Need for Error Handling Error Handling Alternatives The SQLSTATE Status Variable Declaring SQLCODE Key Components of Error Reporting Using the SQLCA Using the SQL Communications Area (SQLCA) Getting the Full Text of Error Messages Using the WHENEVER Directive Obtaining the Text of SQL Statements Using the Oracle Communications Area (ORACA) The Need for Error Handling A significant part of every application program must be devoted to error handling. The main reason for error handling is that it allows your program to continue operating in the presence of errors. Errors arise from design faults, coding mistakes, hardware failures, invalid user input, and many other sources. You cannot anticipate all possible errors, but you can plan to handle certain kinds of errors that are meaningful to your program. For the Pro*C/C++ Precompiler, error handling means detecting and recovering from SQL statement execution errors. You can also prepare to handle warnings such as "value truncated" and status changes such as "end of data." It is especially important to check for error and warning conditions after every SQL data manipulation statement, because an INSERT, UPDATE, or DELETE statement might fail before processing all eligible rows in a table. Error Handling Alternatives There are several alternatives that you can use to detect errors and status changes in the application. This chapter describes these alternatives, however, no specific recommendations are made about what method you should use. The method is, after all, dictated by the design of the application program or tool that you are building. Status Variables You can declare a separate status variable, SQLSTATE or SQLCODE, examine its value after each executable SQL statement, and take appropriate action. The action might be calling an error-reporting function, then exiting the program if the error is unrecoverable. Or, you might be able to adjust data or control variables and retry the action. See Also: "The SQLSTATE Status Variable" and "Declaring SQLCODE" for complete information about these status variables. Th