How do you create a unique index?

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Why we use pl sql?

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ename empno deptno amar 1 10 akbar 2 20 anthonny 3 30 jonathan 4 40 write a procedure to dispaly the column values ina row separated by a deleimiter eg - input - select ename from emp '|' output - amar|akbar|anthony|jonathan input - select empno from emp '@' o/p - 1@2@3@4 input - select deptno from emp '/' o/p - 10/20/30/40 Pls answer this questn.

2 Answers  

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What is a join?Explain the different types of joins?

6 Answers   Bank Of India, CitiGroup, Google, ICICI, Saama Tech, SkyTech, TCS,

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Why do we need a foreign key?

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How to perform a loop through all tables in pl/sql?

4 Answers   Evosys, MBT,

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What is coalesce sql?

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What is the difference between a primary key and a clustered index?

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What are different types of indexes?

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Which software is used for pl sql programming?

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ex: take one schema in that t1,t2,.....tn tables and you don't no the table name also. write a procedure if enter columns name then display the maching columns .otherwise display the unmatch columns.

1 Answers   Zensar,

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Which command is used to delete a trigger?

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