January 12 2013

Mysql regexp and rlike function

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MySQL
Mysql regexp or rlike function it same as PHP preg_match() function.

It save the time write code and filter the data.

January 12 2013

Mysql lpad() function

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MySQL
Using Mysql function add asterisk (*) in front of the string.

Example Output:
********MyTestString
*******MyTestString2
**********TestString

January 10 2013

Mysql instr() Function

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MySQL
Find the string position. I think most of the Software Engineer will use server side script to do it. I also is the one. For PHP, I will use strpos to get the position.

January 10 2013

Mysql find_in_set() Function

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MySQL
Generally, we stores various values of choices in 1 column of database. For example, we store user’s preferred categories in user table’s. value stored in this field will be like this 1,2,12,22,4