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What is intersect?

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More SQL PLSQL Interview Questions

How do I enable sql encryption?

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How many sql statements are used?

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what is sub-query? : Transact sql

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How do you optimize a stored procedure in sql?

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hi this is nakka i have been looking for 1+ exp in oracle sql,plsql developer positions also have knoledge on d2k i am not getting proper walkins how to know it? where can i find it?

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Why use subqueries instead of joins?

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What is the difference between nvl function, ifnull function, and isnull function?

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what is the difference between binary_integer and pls_integer

2 Answers   TCS,

What are sql functions? Describe the different types of sql functions?

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How you improve the performance of sql*loader? : aql loader

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Let us suppose we have a table with structure in order empno empname empdesig empcountry and now i want to re-organize the columns of this table to empno empdesig empname empcountry how can i do this with queries ? assume that table contains the data.

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Why we use joins in sql?

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