Answer Posted / shivani
use the utility IKJEFT01
under systin dd *
dsn system()-
plan()-
prog()-
loadlib()
/*
| Is This Answer Correct ? | 4 Yes | 1 No |
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Differentiate between cs and rr isolation levels? Where do you specify them?
What are bind parameters in db2?
Mention the different locking levels that are available in db2.
Comment whether the cursor is closed during commit or not.
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SET is the ANSI standard for variable assignment, SELECT is not. SET can only assign one variable at a time, SELECT can make multiple assignments at once. If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one) When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value) As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.
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Cursors can be declared in both working-storage & procedure division, agreed. But is there any difference? If could you please suggest what is the difference
Which isolation level provides highest data integrity?
What happens in bind step in a db2 program?
What is meant by explain?
How does a cursor work?
