Ilike organic skin care Rejuvenation Booster with Carotene Essentials and Copper (30 ml / 1.0 fl oz). For the most part, this operator behaves in a similar manner to the LIKE operator; what makes it unique is that it allows for case-insensitive pattern matching. In this article, we’ll take a closer look at the ILIKE Postgres operator and check out some examples of how it can be used in queries.
String & Binary Functions (Matching/Comparison)
Allows matching of strings based on comparison with a pattern. Unlike the LIKE function, string matching is case-insensitive.
LIKE, ILIKE, and RLIKE all perform similar operations; however, RLIKE uses POSIX EXE (Extended Regular Expression) syntax instead of the SQL pattern syntax usedby LIKE and ILIKE.
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LIKE , RLIKE
Syntax¶
Arguments¶
Required:
subjectSubject to match.
pattern
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Pattern to match.
Optional:
escapeCharacter(s) inserted in front of a wildcard character to indicate that the wildcard shouldbe interpreted as a regular character and not as a wildcard.
Usage Notes¶
SQL wildcards are supported in
pattern:An underscore (
_) matches any single character.A percent sign (
%) matches any sequence of zero or more characters.
Wildcards in
patterninclude newline characters (n) insubjectas matches.ILIKE pattern matching covers the entire string. To match a sequence anywhere within a string, start and end the pattern with
%.There is no default escape character.
If you use the backslash as an escape character, then you must specify escape the backslash in theESCAPE clause. For example, the following command specifies that the escape character is the backslash, and thenuses that escape character to search for ‘%’ as a literal (without the escape character, the ‘%’ would be treatedas a wildcard):
For examples of using escape characters, and in particular the backslash as an escape character, seethe examples for the LIKE function.
Collation Details¶
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Arguments with collation specifications are currently not supported.