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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 72350

how to find the second highest salary from emp table?

209 263258

What is normalization? dec 2009

3 5310

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 4616

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 9411

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Cognizant SQL PLSQL Interview Questions


Un-Answered Questions

What is better - 'bit-shift a value' or 'multiply by 2'?

133


How to get the last record in vsam file in cluster? And how can you get the kids file records into your cobol program?

108


What is acid property in dbms?

82


What are the ways available in sql server to execute sql statements?

85


What is a file in a database?

50






What is the difference between == and === operator in PHP?

83


What is ngoninit in angular?

47


How much effort is it going to take to implement?

78


How do I find my outlook exchange server name?

1


i have doubt suppose iam purly working in QTP, when i will work on sql and performence testing? pls any one clarify doubt?

931


Why hibernate is used?

1


In a UPSR what is the limit on the number of nodes that form the ring?

1034


Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

100


How do you configure the automatic payment program?

109


Explain how Verilog is different to normal programming language?

123