percent sign ( % ) is the glob character that matches zero or more characters.
percent sign ( % ) is the glob character that matches zero or more characters.
which glob character matches zero or more characters?
percent sign ( % )
standard sql uses a glob-like syntax for simple string matching in its codice_6 operator. the percent sign (%) matches zero or more characters, and the underscore matches exactly one character. the term "glob" is not generally used in the sql community, however. many implementations of sql have extended the codice_6 operator to allow a richer pattern-matching language incorporating elements of regular expressions.









































some proprietary extensions such as transact-sql provide the functionality, e.g., codice_8 and codice_9.









































section::::compared to regular expressions.
glob (programming)
bullet::::- a one-to-one match is performed between the pattern and the source to be checked for a match, with the exception of asterisk (*) or question mark (?) characters in the pattern.









































bullet::::- an asterisk (*) character matches any sequence of zero or more characters.









































bullet::::- a question mark (?) character matches any single character.









































section::::examples.









































bullet::::- "*foo*" matches any string containing "foo".









































bullet::::- "mini*" matches any string that begins with "mini" (including the string "mini" itself).









































bullet::::- "???*" matches any string of three or more letters.









































section::::applications.
krauss matching wildcards algorithm