Update query



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Update query

Postby hvats83 » Fri Dec 21, 2012 1:44 pm

In a COBOL\DB2 program if I am updating a column value (which is part of index) which option is better-
First delete the record which ging to be updated and then insert new record with updated values
or
directly using update query
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Re: Update query

 

Re: Update query

Postby GuyC » Fri Dec 21, 2012 3:02 pm

update would only relocate (delete/insert) in that one indexspace.
Think about what an actual delete/insert would do concerning entry in the tablespace and other indexpaces, what if this row has children?
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Re: Update query

Postby hvats83 » Fri Dec 21, 2012 3:20 pm

The table being updated in program is not having child tables
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