Explain dml and ddl?

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How delete all data from table in sql?

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What is difference between a Cursor declared in a procedure and Cursor declared in a package specification ?

2 Answers   JDA,

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What are the disadvantages of file system?

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What is rename command in sql?

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What are the ways on commenting in a pl/sql code?

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how to shutdown mysql server? : Sql dba

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Which is better varchar or nvarchar?

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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 the benefit of foreign key?

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what is data manipulation language? : Sql dba

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Explain raise_application_error.

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