Answer / gogune

Thr'u command

explain plan for <select statement>

In my table i'm having the duplicate records with sequence number and my requirement is when in new record is coming i want to delete existing old record(onlyone i.e maintaing the partial duplicate date )and add new record

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How client makes connection with server in client/server architecture?

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what is diff between pre insert,on insert,post insert triggers?

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Give two methods you could use to determine what DDL changes have been made.

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which one is currently in used software cmpanies.

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How many segment are present in Oracle Manufacturing

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write a query to find the third maximum salary of a employee.(table:employ col name:salary)

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What is the difference between the SQL*Loader and IMPORT utilities?

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What view would you use to determine free space in a tablespace?

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What is index? How many types of indexes?

2 Answers   HCL,

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please explain about oracle

1 Answers  

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