Firebird 2.1 Language Reference Update

Notes:
Internal functions
• If the scale argument is present, the result usually has the same scale as the first argument, e.g.
- TRUNC(789.2225, 2) returns 789.2200 (not 789.22)
- TRUNC(345.4, -2) returns 300.0 (not 300)
- TRUNC(-163.41, 0) returns -163.00 (not -163)
Otherwise, the result scale is 0:
- TRUNC(-163.41) returns -163
Important
If you are used to the behaviour of the external function TRUNCATE, please notice that the internal function
TRUNC always truncates toward zero, i.e. upward for negative numbers.
Available in: DSQL, ESQL, PSQL
Added in: IB
Changed in: 2.0, 2.1
UPPER()
Description: Returns the upper-case equivalent of the input string. The exact result depends on the character
set. With ASCII or NONE for instance, only ASCII characters are uppercased; with OCTETS, the entire string is
returned unchanged. Since Firebird 2.1 this function also fully supports text BLOBs of any length and character
set.
Result type: (VAR)CHAR or BLOB
Syntax:
Examples:
UPPER (str)
select upper(_iso8859_1 'Débâcle')
from rdb$database
-- returns 'DÉBÂCLE' (before Firebird 2.0: 'DéBâCLE')
select upper(_iso8859_1 'Débâcle' collate fr_fr)
from rdb$database
-- returns 'DEBACLE', following French uppercasing rules
See also: LOWER
163