How do you optimize a query?
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I have a Employee table with columns ename,eid,salary,deptno. How to retrieve sum of salary for each deptno?
What is rowid in sql?
Can function return multiple values in sql?
How to look at the current sql*plus system settings?
What is the use of <> sql?
tell me about various levels of constraint. : Sql dba
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Is sql difficult?
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how many triggers are allowed in mysql table? : Sql dba
..........refers to the disk mirroring
What is the fastest way of accessing a row in a table?
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