what is the difference between group by and order by in sql? : Sql dba

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what are numeric data types? : Sql dba

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Which is faster count (*) or count 1?

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Why does sql need a server?

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I have a Employee table with columns ename,eid,salary,deptno. How to retrieve sum of salary for each deptno?

8 Answers   L&T,

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What is normalization in a database?

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Explain the the update statement in sql?

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Do view contain data?

6 Answers   Ramco,

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What is sql*loader and what is it used for?

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what is a database? : Sql dba

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In a PL/SQL block,which loop type should be used in a performance point of view & Why (as both loops can do the same task) 1) open - Fetch loop 2) for loop

4 Answers   JDA,

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What is a variable in sql?

0 Answers  

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