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(PAPER) 'COVANSYS' SQL - Interview Questions...

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SQL paper...........

*********

* What is joins and define all the joins ?

* What is Foreign key ?

* Write an SQL query if u want to select the data from one block which inturn reflects in another block ?

 

UNIX paper............

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* Which command is used to run an interface?

* How will you see the hidden file ?

* What is the command used to set the date and timings ...

* Some basic commands like copy, move,delete ?

* Which command used to the go back to the home directory ....

* Which command used to view the the current directory

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UNIX paper............

What is the command used to set the date and timings ...

$ date () - display or set the date & timings

Syntax : Command <Source> < Destination>

Some basic commands like copy, move, delete ?

Syntax : Command <Source> < Destination>

$ cp () - copy files

$ mv () - move files.

$ rm () - delete r remove files

Which command used to view the the current directory

$ pwd

Correct me if i m wrong .....

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How will you see the hidden file ?

$ -a For long listing : $ ls -a (All files starting with . & .. will b listed)

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