Add builtin functions MODIFY_DATE, MODIFY_TIME
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Key: CORE-5623
URL: http://tracker.firebirdsql.org/browse/CORE-5623
Project: Firebird Core
Issue Type: New Feature
Components: Engine
Reporter: Karol Bieniaszewski
If you consider new functions then much common will be
Of course it's just a suggestion of a name and syntax,
MODIFY_DATE([SET] {DAY | MONTH | YEAR } <value> FOR <date or timestamp>)
MODIFY_DATE(DAY 1 FOR '2017-09-22') -- 2017-09-01
MODIFY_DATE(MONTH 1 FOR '2017-09-22') -- 2017-01-27
MODIFY_DATE(YEAR 2000 FOR '2017-09-22') -- 2000-09-22
and
MODIFY_TIME([SET] {HOUR | MINUTE | SECOND | MILLISECOND } <value> FOR <date
or timestamp>)
MODIFY_TIME(HOUR 15 FOR '08:06:22') -- '15:06:22'
MODIFY_TIME(MINUTE 15 FOR '08:06:22') -- '08:15:22'
MODIFY_TIME(SECOND 1 FOR '08:06:22') -- '08:06:01'
...
maybe name should be RECODE_DATE, REPLACE_DATE...
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