What is clustered, non-clustured and unique index. How many indexes can be created on a table ?

3 Answers   TCS,

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How many types of primary keys are there?

0 Answers  

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Why is there a need for sqlcode and sqlerrm variables?

0 Answers  

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What is pl sql commands?

0 Answers  

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How do you create a db file?

0 Answers  

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how to delete duplicate rows from a join tables(I have three tables on that join) how do you know which join is need to be used? The select statement I have is: SELECT gc_skill_type.skill_type, gc_area_tec.area, gc_technology.technology, gc_technology.id_technology, gc_area_tec.id_area_tec FROM gc_skill_type, gc_area_tec, gc_technology WHERE gc_area_tec.id_skill_type (+) = gc_skill_type.id_skill_type AND gc_technology.id_area_tec (+) = gc_area_tec.id_area_tec order by gc_skill_type.skill_type asc, gc_area_tec.area asc, gc_technology.technology asc

1 Answers   IAS,

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What is null in pl/sql?

0 Answers  

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What is the difference between SQL Constraint and PL/SQL constraint.Pls give all the constraint name.

3 Answers   TCS,

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How pl/sql source code can be protected?

3 Answers  

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table structure: ---------------- col1 col2 ----- ----- 01-mar-2012 11:12:46 01-mar-2012 11:12:10 01-mar-2012 11:12:46 01-mar-2012 11:11:23 Write a query to display the result as shown below: col1 col2 ----- ----- 01-mar-2012 11:12:46 01-mar-2012 11:12:10

2 Answers  

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Which command is used to call a stored procedure?

0 Answers  

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What are the ddl commands?

0 Answers  

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