Mysql REGEXP

Mysql REGEXPS

Pattern	What the pattern matches
^	Beginning of string
$	End of string
.	Any single character
[...]	Any character listed between the square brackets
[^...]	Any character not listed between the square brackets
p1\|p2\|p3	Alternation; matches any of the patterns p1, p2, or p3
*	Zero or more instances of preceding element
+	One or more instances of preceding element
{n}	n instances of preceding element
{m,n}	m through n instances of preceding element

To find the productname starts with 'nat'

SELECT productname FROM product WHERE productname REGEXP '^nat';

To find the productname ends with 'nat'

SELECT productname FROM products WHERE productname REGEXP 'oil$';

To find the productname contains with 'go'

SELECT productname FROM products WHERE productname REGEXP 'go';

To find all the productnames starting with the letters a,k and ending with 'oil'

SELECT productname FROM products WHERE productname REGEXP '^[ak]|oil$';

Strings 'cat','caat','ct','caact' are included in the field.

use * Regexp, it returns to cat,caat,ct only.

select field_name REGEXP "^ca*t";

Use + Regexp, it returns to cat,ct only.

select field_name REGEXP "^ca+t";

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