What happens if variable names collide with table/column names?
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Can cursor variables be stored in PL/SQL tables.If yes how. If not why?
How do I decide when to use right joins/left joins or inner joins or how to determine which table is on which side?
What is the purpose of init.ora. ? how many init.ora exist in oracle installation? suppose there are 3 database on one oracle server, how many init.ora do I have? what are various database objects? how will you identify memmory related performace issue in oralce? any idea about basic architure difference of oracle and db2? comment on which is better , with reasons? what is a fuction based index? is it recommended to use the same. ? what is global temporay table? what is teh signification of the parameter session_cached_cursor ?
Anybody can tell me, how do we find second largest emp salary from emp table.. Thanks in advance ...
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master table and child table performances and comparisons in Oracle ?
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where we have to use ON clause and where we have to use USING clause in JOINS
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I just want to maintain data like an employee can belongs to 3 or more departments . We can resolve this by using composite key but it avoids normalization rules. So Can anyone tell me how can I maintain data.
How to assign values to data fields in record variables?