Firebird Documentation Index → Firebird 2.0 Language Ref. Update → Context variables → CURRENT_TIME |
Available in: DSQL, PSQL, ESQL
Changed in: 2.0
Description: CURRENT_TIME
returns the current server time. In versions prior to 2.0, the fractional part used to be always “.0000
”, giving an effective precision of 0 decimals. From Firebird 2.0 onward you can specify a precision when polling this variable.
The default is still 0 decimals, i.e. seconds precision.
Type: TIME
Syntax:
CURRENT_TIME [(precision
)]precision
::= 0 | 1 | 2 | 3The optional
precision
argument is not supported in ESQL.
Examples:
select current_time from rdb$database -- returns e.g. 14:20:19.6170select current_time(2) from rdb$database -- returns e.g. 14:20:23.1200
Notes:
Unlike CURRENT_TIME
, the default precision of CURRENT_TIMESTAMP
has changed to 3 decimals. As a result, CURRENT_TIMESTAMP
is no longer the exact sum of CURRENT_DATE
and CURRENT_TIME
, unless you explicitly specify a precision.
Within a PSQL module (procedure, trigger or executable block), the value of CURRENT_TIME
will remain constant every time it is read. If multiple modules call or trigger each other, the value will remain constant
throughout the duration of the outermost module. If you need a progressing value in PSQL (e.g. to measure time intervals),
use 'NOW'
.
Firebird Documentation Index → Firebird 2.0 Language Ref. Update → Context variables → CURRENT_TIME |