What is data definition language?


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More SQL PLSQL Interview Questions

Can we use commit or rollback in trigger? If yes, then how. Please explain with a suitable example?

5 Answers   HSBC,


How packaged procedures and functions are called from the following?

2 Answers  


Why do we use procedures in sql?

0 Answers  


What is Collation Sensitivity ? What are the various type ?

0 Answers  


Does normalization improve performance?

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Explain constraints in sql?

0 Answers  


What is oracle ? why we should go for oracle database instead of diffrent databases available in the industry.

5 Answers   Polaris,


Q1.all the depts which has more then 10 empls? Q2.all the dept which does not have any emply? Q3 all the emp which does not have any dept? Q4 get all the emply detais with the dept details it dept is exit otherwise any emp details? Q5 how to debugg the dynamic sql and packages?

2 Answers  


There is a table, In one column it has implemented a index, but the index is disturbed by the regular dml statements.. but still we need to keep the index. how it is possible?

1 Answers   Cognizant,


What is a primary key? Explain

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When are we going to use truncate and delete?

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What is procedure explain with program?

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