Firebird 2.1 Language Reference Update

Result type: (VAR)CHAR or BLOB
Syntax:
Example:
LOWER (str)
Important
Internal functions
If the external function LOWER is declared in your database, it will override the internal function. To make the
internal function available, DROP or ALTER the external function (UDF).
select Sheriff from Towns
where lower(Name) = 'cooper''s valley'
See also: UPPER
Available in: DSQL, PSQL
Added in: 2.1
LPAD()
Description: Left-pads a string with spaces or with a user-supplied string until a given length is reached.
Result type: VARCHAR(32765) or BLOB
Syntax:
LPAD (str, endlen [, padstr])
• This function fully supports text BLOBs of any length and character set.
• If str is a BLOB, the result is a BLOB. Otherwise, the result is a VARCHAR(32765).
• If padstr is given and equals '' (empty string), no padding takes place.
• If endlen is less than the current string length, the string is truncated to endlen, even if padstr
is the empty string.
Important
If the external function LPAD is declared in your database, it will override the internal function. To make the
internal function available, DROP or ALTER the external function (UDF).
Tip
With (VAR)CHARs, it is generally wise to CAST the result to a smaller size. The default result length of 32765
may, in combination with other output columns, lead to a “block size exceeds implementation restriction” error.
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