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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

What are Measures?

1

What is preparedstatement in jdbc?

76

Can I delete cbs logs?

76

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?

1274

How to insert table in table in word?

48




What does exe mean?

82

Explain the advantages and disadvantages of detached objects.

112

What is viewport html?

65

Is an exe a binary file?

77

Is an array an object c#?

78

Tell us how will you know which machine learning algorithm to choose for your classification problem?

99

What is a map in programming?

63

What is the use of split cells option in computer?

11

Why do we say “a b c = 1000 2000 3000” is an invalid statement in python?

92

How to disable disable browser's Back button in asp.net (JavaScript)?

137