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Catch error and RETRY? How?

volking
volking asked
on
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Last Modified: 2010-05-18
I have an MQT.
I need to execute ........... REFRESH TABLE MyLIB.MyMQT
If a client application "HAPPENS" to be accessing the same MQT ... I get error

SQL State: 57033
Vendor Code: -913
Message: [SQL0913] Row or object IPCUTMQ0 in CSIDEV type *FILE in use. Cause . . . . . :   The requested object IPCUTMQ0 in CSIDEV type *FILE is either in use by another application process or a row in the object is in use by either another application process or another cursor in this application process.

How would I write a SQL script to capture the error and re-try the REFRESH TABLE MyLIB.MyMQT again?
Maybe even keep trying for 1 minute or 5 attempts or some such repeat threshold?

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Author

Commented:
@Momi - something like this .... right?

---------------------------------
    DECLARE SQLCODE INTEGER DEFAULT 0;
    DECLARE TRYS INTEGER DEFAULT 0;
    SET TRYS = 4;
    WHILE TRYS > 0 DO
        REFRESH TABLE MyLib.MyMQT ;
        IF ((SQLCODE = 0) OR (SQLCODE>0 and SQLCODE <> 100)) THEN
            SET TRYS = 0;
        ELSE
            SET TRYS = TRYS - 1;
        END IF;
    END WHILE;

Author

Commented:
Criteria used was based on documentation which says .....

The SQLCODE is also set by the database manager after each SQL statement is executed as follows:
- If SQLCODE = 0 and SQLWARN0 is blank, execution was successful.
- If SQLCODE = 100, no data was found. For example, a FETCH statement returned no data, because the cursor was positioned after the last row of the result table.
- If SQLCODE > 0 and not = 100, execution was successful with a warning.
- If SQLCODE = 0 and SQLWARN0 = 'W', execution was successful with a warning.
- If SQLCODE < 0, execution was not successful.
your code looks fine (assuming there are no warning you need to consider)

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