1. how to use the check option constraints in sql query..? 2.how to add data in a complex query ? 3.is it possible to use commit or rollback or savepoint in triggers...if not why please explain with examples...? 4.what is the difference between meterialized view and normal view..how to create materialized view and how to use it..? 5.what is varray...? what is the advantage of the varray ? please expalin with a simpel example..i want to load into a table (student no and name and his marks..) please give example.. 6.what are the bulk bind exceptions...how to use bulk bind and how to use bulk collect..please explain with example... 7.what is for update of and where current of ...? 8 what is the use of nowait ? 9.please give an example for nocopy in a simple plsql query 10.create an index in a table...tellme how to use the index in a where clause to do performance tunning...

3 Answers   Satyam,

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what is a constraint? Tell me about its various levels. : Sql dba

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What is procedure function?

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How do you write a complex sql query?

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Can you select everything, but 1 or 2 fields, without writer's cramp?

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What is ROWID?

8 Answers  

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Which kind of parameters cannot have a default value in pl sql?

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What are types of joins?

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8 Answers   Wipro,

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Hi Everyone, How to get fist and last record from a table in oracle? Thanks in advance

13 Answers   IBM,

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How does join work in sql?

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Why we use cross join?

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