Firebird Documentation Index → Firebird 2.0 Language Ref. Update → Internal functions → LOWER() |
Find a more recent version at Firebird 5.0 Language Reference: LOWER()
Available in: DSQL, ESQL, PSQL
Added in: 2.0
Description: Returns the lower-case equivalent of the input string. This function also correctly lowercases non-ASCII characters, even if the default (binary) collation is used. The character set must be appropriate though: with ASCII or NONE for instance, only ASCII characters are lowercased; with OCTETS, the entire string is returned unchanged.
Result type: (VAR)CHAR
Syntax:
LOWER (str
)
Because LOWER is a reserved word, the internal function wil take
precedence even if the external function by that
name has also been declared. To call the (inferior!) external function, use
double-quotes and the exact capitalisation, as in
"LOWER"
(str
).
Example:
select Sheriff from Towns where lower(Name) = 'cooper''s valley'
See also: UPPER
Firebird Documentation Index → Firebird 2.0 Language Ref. Update → Internal functions → LOWER() |