База данных / IS_to_STUD / Soft / 2.1.0.17798-Final / Firebird-2.1.0.17798-0_Win32 / doc / sql.extensions / README.current_time

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CURRENT_TIME and CURRENT_TIMESTAMP
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Function:
Returns current server system time or date+time values.

Syntax rules:
CURRENT_TIME [(<seconds precision>)]
CURRENT_TIMESTAMP [(<seconds precision>)]

Type:
TIME, TIMESTAMP

Scope:
DSQL, PSQL

Example(s):
1. SELECT CURRENT_TIME FROM RDB$DATABASE;
2. SELECT CURRENT_TIME(3) FROM RDB$DATABASE;
3. SELECT CURRENT_TIMESTAMP(3) FROM RDB$DATABASE;

Note(s):
1. The maximum possible precision is 3 which means accuracy of 1/1000 second
(one millisecond). This accuracy may be improved in the future versions.
2. If no seconds precision is specified, the following values are implicit:
- 0 for CURRENT_TIME
- 3 for CURRENT_TIMESTAMP