I understand Join always perform better than subqueries. Then what is the advantage/use of Subqueries/correlated subqueries etc.,in DB2 programming.Please explain.
2071before altering a table is it necessary to lock ? if lock what is it ? how to do ? ifi want to lock a table what is that command ?
IBM,
2185what is the total syntax for fetch ? can any one please give me all the details of fetch ? thx
IBM,
2 6405suppose in my table 10 rows are there , i want to update odd rows salary as 90000 ? how u do it ? any one help me ? what do we use here cursor-fetch or normal sql ?
IBM,
5 10850If the main program has only cobol statements and subprogram has the db2 statements what is the procedure for precompilation. for which program we need to do the precompilation
IBM,
1 6693
How can we retrieve the total number of records in RPG & CLLE?
Mention a credible reason why select* is never given preference in an sql program that has been embedded.
What is a page in db2?
What is the result of open cursor statement?
Mention the downsides of page level lock.
Explain in detail about buffer manager and its functionalities?
What is collection in db2 bind?
What is precompiler in db2?
Explain in brief how does db2 determine what lock-size to use?
What is isolation level in db2?
What is reorg?
What is role in db2?
What do you mean by rollback?
what is the sqlcode -501
What is buffer pool?