Answer Posted / anuj tiwari
The order in which the database fields are organized for processing in the program.
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How to create db2 table in mainframe?
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.
Is it possible to alter a table – for example adding a column, when another user is accessing or updating some columns?
Explain dclgen.
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What are the bind parameters ibm db2?
What is buffer pool in the db2 database?
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What is db2 catalog database?
What is netezza database?
Mention the definition of cobol in varchar field.
Where can you declare a cursor in a cobol-db2 program?
What do you mean by commit and rollback?
what is the responsibility of the construction superintendent
