SQL 如何在firebird中以YYYYMMDD获取今天的日期
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时间：2020-09-01 00:48:59 来源:igfitidea点击:
how to get today date in YYYYMMDD in firebird
提问by kuhajeyan
回答by Gordon Linoff
I think you can do:
我认为你可以这样做：
select replace(cast(cast('Now' as date) as varchar(10)), '-', '')
from rdb$database
回答by ASTERIAN75
This is a fully version (in Integer)
这是一个完整的版本（整数）
select Extract(year FROM cast('NOW' as date))*10000 +
Extract(month FROM cast('NOW' as date))*100 +
Extract(day FROM cast('NOW' as date)) from rdb$database
This is a fully version (in VARCHAR)
这是一个完整版本（在 VARCHAR 中）
select CAST(Extract(year FROM cast('NOW' as date))*10000 +
Extract(month FROM cast('NOW' as date))*100 +
Extract(day FROM cast('NOW' as date)) AS VARCHAR(8)) from rdb$database
回答by Altivo
IN FIREBIRD v2.5.5:
在火鸟 v2.5.5 中：
SELECT LPAD( EXTRACT( YEAR FROM CURRENT_TIMESTAMP ), 4, '0' ) ||
LPAD( EXTRACT( MONTH FROM CURRENT_TIMESTAMP ), 2, '0' ) ||
LPAD( EXTRACT( DAY FROM CURRENT_TIMESTAMP ), 2, '0' ) || ' ' ||
LPAD( EXTRACT( HOUR FROM CURRENT_TIMESTAMP ), 2, '0' ) ||
LPAD( EXTRACT( MINUTE FROM CURRENT_TIMESTAMP ), 2, '0' ) ||
LPAD( TRUNC( EXTRACT( SECOND FROM CURRENT_TIMESTAMP ) ), 2, '0' )
FROM rdb$database
OUTPUT IS: YYYYMMDD HHMMSS
输出是：YYYYMMDD HHMMSS
回答by Ashish Ratan
This Should work.
这应该工作。
CREATE TABLE tab( t time, d date, ts timestamp );
INSERT INTO tab(t,d,ts) VALUES ('14:59:23', '2007-12-31', '2007-12-31 14:59');
SELECT CAST(CAST(d as varchar(10)))
FROM tab;
