Mysql miscellaneous
- What is the Perl DBI?
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Correct Option: B
The Perl DBI is the Perl Database Interface. The work of the interface is to form a link between the application programming interface in C with all the other programming languages.
- What is the default path to perl in Unix?
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Correct Option: C
All Perl scripts generally begin with a #! (shebang) line. A script is a file containing a sequence of commands. The Perl scripts are text files, which can be ceated using any text editor.
- The line that is written at the top of the script to write a Perl script using CGI.pm is ___________.
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Correct Option: B
In order to write a Perl script that uses the ‘CGI.pm’ module, a ‘use CGI’ statement is included near the beginning of the script that imports the function names of the module.
- Which variable when set to 1 would enable foreign key checking for InnoDB tables?
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Correct Option: D
Setting the variable ‘foreign_key_checks’ to 0 or 1 disables or enables the foreign key checking for InnoDB tables. The default is to perform checking. Disabling key checks can also be helpful.
- The synonym for last_insert_id session variable is _____________.
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Correct Option: D
The session only system variable ‘identity’ is a synonym for the ‘last_insert_id’ session variable. Setting ‘last_insert_id’ specifies the value to be returned by the function ‘LAST_INSERT_ID()’.