Blog Posts - System Functions



NULLIF Function

NULLIF function in sql server with examples. NULLIF function returns null value if the two specified expressions are equivalent. NULLIF is equivalent to a searched CASE function in... SQL is a standard interactive and programming lang...
by Structured Query Language on Aug 8, 2012

REPLICATE Function

REPLICATE function of sql server with examples. REPLICATE is used to repeat a string with specified number of times.  Syntax of REPLICATE Function : REPLICATE (... SQL is a standard interactive and programming language for querying a...
by Structured Query Language on Aug 8, 2012

Disabling PHP system(); and exec(); functions to raise up Apache security on Debian GNU / Linux

At security critical hosts running Apache + PHP based sites it is recommended functions like: system(); exec();shell_exec();..... to be disabled. The reason is to mainly harden against script kiddies who might exploit your site/s and upload some shit...

Disabling PHP system(); and exec(); functions to raise up Apache security on Debian GNU / Linux

At security critical hosts running Apache + PHP based sites it is recommended functions like: system(); exec();shell_exec();..... to be disabled. The reason is to mainly harden against script kiddies who might exploit your site/s and upload some shit...


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