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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 72691

how to find the second highest salary from emp table?

209 266243

What is normalization? dec 2009

3 5378

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 4673

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 9539

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Cognizant SQL PLSQL Interview Questions

Un-Answered Questions

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For the calculation of bearing pressure below the footing, to know whether it is below the safe bearing pressure of the soil, the unit of RCC below ground level to be taken is 25 KN/m3 or (25-15)KN/m3, where 25 is the unit weight of RCC and 15 is the unit weight of soil and whether the weight of backfilling to be taken?


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