Is sql harder than python?

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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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How can I delete duplicate rows?

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Is sql dba a good career? : SQL DBA

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What is the cause of mutating table error and how can we solve it?

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In pl/sql, what is bulk binding, and when/how would it help performance?

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What is over () in sql?

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what is oracle database ? : Sql dba

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Is pl sql and postgresql same?

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What does count (*) mean?

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how to give permission to users that users can update/insert/delete on a row of table on timeing 10am to 6pm only?

4 Answers   TCS,

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What is embedded sql in db2?

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