Can you have a foreign key without a primary key?

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Can we create foreign key without primary key?

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wirte a query to filter improper date format follwing table? date 20-apr 22-may-2010 26-jun-2010 feb-2009 i want the output date 22-may-2010 26-jun-2010

6 Answers   Accenture,

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What is a sql trace file?

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What is the difference between microsoft access and sql?

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Is primary key is clustered index?

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What is the maximum number of triggers, you can apply on a single table?

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1.when will you use week refcursor and when will you use strong ref cursor ? 2.what is the use of sql trace..how do you use it ? 3.can you please send all the sql plus commands...like set line 6000....

1 Answers   Satyam,

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What are the benefits of pl/sql packages?

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What is plpgsql language?

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take one table is t1 and in that column name is f1 f1 column values are 200 5000 3000 7000 300 600 100 400 800 400 i want display the values asc and desc in a single output. sample output is f1.a 100 200 300 400 500 600 etc...... and f1.d is 5000 4000 3000 2000 1000 etc...

9 Answers   Zensar,

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What are the types of records?

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