CURRENT_TIME
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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 | 3
The optional precision argument is not supported in ESQL.
Examples
select current_time from rdb$database -- returns e.g. 14:20:19.6170 select current_time(2) from rdb$database -- returns e.g. 14:20:23.1200
Notes:
- Unlike
CURRENT_TIME, the default precision ofCURRENT_TIMESTAMPhas changed to 3 decimals. As a result,CURRENT_TIMESTAMPis no longer the exact sum ofCURRENT_DATEandCURRENT_TIME, unless you explicitly specify a precision. - Within a PSQL module (procedure, trigger or executable block), the value of
CURRENT_TIMEwill 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'.
See also:
CURRENT_TIMESTAMP now returns milliseconds by default
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<< CURRENT_ROLE | FB 2.5 Language Reference | CURRENT_TIMESTAMP >>
<< CURRENT_ROLE | FB 2.1 Language Reference | CURRENT_TIMESTAMP >>
<< CURRENT_ROLE | FB 2.0 Language Reference | CURRENT_TIMESTAMP >>







