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Answer Posted / rajesh_m13
substr('string',1,3) which gives str. correct me if i am wrong
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Explain db2.
What are the rules for db2 programming?
What is data manager?
What is image copy in db2?
Why do we need reorg in db2?
What is view db2?
How is the value function used?
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.
Hi Everyone... Under the Logical files, when am working on multiple rec format logical file, I have joined two pf's using the multiple record format logical file concept, but when i run queried the LF only the first mentioned pf records are reflecting and I am not able to see any of the field records specified under the second pf. Kindly let me know whats the reason behind this. Below is the str of LF., R rec PFILE(LOGICAA) CUSTNO CUSTNAME BILL K CUSTNO R rec1 PFILE(LOGICAA1) CUSTNO ADD K CUSTNO .....
What is the cobol picture clause of the db2 data types date, time, timestamp?
How can you validate Sql errors during cursor operation in db2 pgms and where do you code?
Define buffer pool.
can all users have the privilage to use the sql statement select * (dml)?
What is null indicator in db2?
Explain about cursor stability?
