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MySQL NOT RLIKE Function



The MySQL NOT RLIKE function is the negation of RLIKE function.

The NOT RLIKE function is a synonym for the NOT REGEXP function.

Syntax

expression NOT RLIKE pattern

Parameters

expression Required. Specify a character expression such as a column or field.
pattern Required. Specify the regular expression matching information. See the table below for pattern syntax.

Regular Expression Patterns

SymbolDescription
^Matches the beginning of a string.
$Matches the end of a string.
*Matches zero or more occurrences.
+Matches one or more occurrences.
?Matches zero or one occurrence.
.Matches any character except NULL.
|Used like an "OR" to specify more than one alternative.
[ ]Matches any single character specified within [].
[^ ]Matches any single character that is not specified within [].
-Represents a range of characters.
( )Used to group expressions as a subexpression.
{m}Matches m times.
{m,}Matches at least m times.
{m,n}Matches at least m times, but no more than n times.
\nn is a number between 1 and 9. Matches the nth subexpression found within ( ) before encountering \n.
\dMatches a digit character.
\DMatches a nondigit character.
\wMatches a word character.
\WMatches a nonword character.
\sMatches a whitespace character.
\Smatches a non-whitespace character.
*?Matches the preceding pattern zero or more occurrences.
+?Matches the preceding pattern one or more occurrences.
??Matches the preceding pattern zero or one occurrence.
{n}?Matches the preceding pattern n times.
{n,}?Matches the preceding pattern at least n times.
{n,m}?Matches the preceding pattern at least n times, but not more than m times.
[..]Matches one collation element that can be more than one character.
[=character_class=]Represents an equivalence class. It matches all characters with the same collation value, including itself.
[:character_class:]Represents a character class that matches all characters belonging to that class.

List of standard class name

Character Class NameMeaning
alnumAlphanumeric characters
alphaAlphabetic characters
blankWhitespace characters
cntrlControl characters
digitDigit characters
graphGraphic characters
lowerLowercase alphabetic characters
printGraphic or space characters
punctPunctuation characters
spaceSpace, tab, newline, and carriage return
upperUppercase alphabetic characters
xdigitHexadecimal digit characters


Example: Match on more than one alternative

Consider a table called Employee. The below query is used to fetch all records from this table where Name does NOT contain either "Ja", "Je" or "Ji". To specify more than one alternative for the second character of the pattern, | is used.

SELECT * FROM Employee
WHERE Name NOT RLIKE 'J(a|e|i)';


Example: Match on Beginning

Consider a table called Employee. The below query is used to fetch all records from this table where Name does NOT start with "J". Here, ^ is used to specify starting character of the pattern.

SELECT * FROM Employee
WHERE Name NOT RLIKE '^J';


Example: Match on End

Consider a table called Employee. The below query is used to fetch all records from this table where Name does NOT end with "n". Here, $ is used to specify end character of the pattern.

SELECT * FROM Employee
WHERE Name NOT RLIKE 'n$';


Example: Non-Matching List

Consider a table called Employee. The below query is used to fetch all records from this table where Name does NOT contain either "Ja", "Jb", "Jc" or "Jd". To specify the second character of the pattern, [  ] is used.

SELECT * FROM Employee
WHERE Name NOT RLIKE 'J[a-d]';


Example: Not-Matching Character Class

Consider a table called Employee. The below query is used to fetch all records from this table where Address does NOT contain any punctuation character.

SELECT * FROM Employee
WHERE Address NOT RLIKE '[[:punct:]]';


Example: Escaping Characters

To escape special character, it should be preceded with two backslashes \\. For example: the below query can be used to fetch all records from Employee table where Address does NOT contain a ( character.

SELECT * FROM Employee
WHERE Address NOT RLIKE '\\(';

❮ MySQL Functions

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