How will you select unique values from a list of records?

7 Answers   Cap Gemini,

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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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Why we use joins in sql?

0 Answers  

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how to add a new column to an existing table in mysql? : Sql dba

0 Answers  

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Types of optimization?

6 Answers   Microsoft,

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How do I view output in sql developer?

0 Answers  

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If you have to declare procedure1,procedure2 in package specification and if you have to declare procedure1,procedure2 and procedure3 in package body? is it compilation or not and execute or not? what type of error is given please

1 Answers  

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What Is a Trigger? How Do You Use It?

3 Answers  

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What is dml statement?

0 Answers  

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What is partition by in sql?

0 Answers  

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Can we group by two columns in sql?

0 Answers  

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in table there r so many rows write a query which two rows r updated last two day befor?

3 Answers   Exilant,

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