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Cognizant SQL PLSQL Interview Questions
Questions Answers Views Company eMail

What is an index and types of indexes. How many number of indexes can be used per table ?

12 71820

how to find the second highest salary from emp table?

209 258901

What is normalization? dec 2009

3 5204

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 4543

there is A table and B table in A table there 5 rows and in b table there are 2 rows i am firing query select * from a,b what will be the output?

7 9264

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Cognizant SQL PLSQL Interview Questions

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