What is an EXPLAIN in DB2. How and what is the steps followed in EXPLAIN command. Can all the queries be used in EXPLAIN command to check the performance.
3 16792Hi Please try to be to-the-point. 1) How to INCLUDE a JCL segment in a JOB ? (A Small example) 2) What is SPOOL and what is SPOOL FULL ? and how to direct the output of a Jobstep to SPOOL ?
3 5923What is 'mounting' of volumes ? Is there anything that a programmer can do in it ? How to find currently mounted volume ?
1990How to find the UNIT and VOLUME of a (a) KEPT (b) UNCATALOGED and (c) CATALOGED dataset - using (i) JCL and using (ii) ISPF ?
2165Is there GOTO and SWITCH-CASE available in JCL ? Is IF-THEN-ELSE available in JCL also just like it is available for VSAM datasets under Model Commands category ?
1 12582How many JOB statements a JCL can have ? If there are more than one JOB statements in a JCL, are they submitted in succession or in parallel ?
4 15454If Name is NOT given for a JOB statement, then will it give error or installation will supply it for the JOB ?
1 8367How to release a JOB (from the input queue) held by TYPRUN = HOLD ? and how to see the installation default time after which a JOB will be automatically released ? How to see the list of currently HELD JOBS ?
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