What makes a good primary key?


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More SQL PLSQL Interview Questions

consider a table which contain 4 columns,ename,eno,sal and deptno, from this table i want to know ename who having maximum salary in deptno 10 and 20.

24 Answers   Mind Tree,


What is trigger types in sql?

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How do I sort a table in sql?

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Why are indexes and views important to an organization?

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What are the qualities of 2nf?

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Can we join 3 tables in sql?

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What is function and procedure?

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hi,i plan to put experience on PLSQL ,can anyone suggest me for any institutes in bangalore or how to prepare for interviews

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what is 'force view'?

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What is a constraint? Tell me about its various levels.

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Why do we use cursors?

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