[英]Oracle Convert TIMESTAMP with Timezone to DATE
I have DB with timezone +04:00 (Europe/Moscow)
and need to convert a string in format YYYY-MM-DD"T"HH24:MI:SSTZH:TZM
to DATE
data type in Oracle 11g.我+04:00 (Europe/Moscow)
区+04:00 (Europe/Moscow)
,需要将格式YYYY-MM-DD"T"HH24:MI:SSTZH:TZM
的字符串转换为 Oracle 11g 中的DATE
数据类型。
In other words, I have a string 2013-11-08T10:11:31+02:00
and I want to convert it to DATE
data type (in local DB timezone +04:00 (Europe/Moscow)
).换句话说,我有一个字符串2013-11-08T10:11:31+02:00
并且我想将它转换为DATE
数据类型(在本地数据库时区+04:00 (Europe/Moscow)
)。
For string 2013-11-08T10:11:31+02:00
my desired transformation should return DATE
data type with date 2013-11-08 12:11:31
(ie with local timezone transformation of time to +04:00 (Europe/Moscow)
).对于字符串2013-11-08T10:11:31+02:00
我想要的转换应该返回DATE
数据类型,日期为2013-11-08 12:11:31
(即本地时区转换时间为+04:00 (Europe/Moscow)
)。 Timezone of string may be different and +02:00
in string above is just example.字符串的时区可能不同,上面字符串中的+02:00
只是示例。
I tried to do this with TIMESTAMP
data type, but no success with time zone transformation.我尝试使用TIMESTAMP
数据类型执行此操作,但时区转换没有成功。
to_timestamp_tz()
function with at time zone
clause can be used to convert your string literal to a value of timestamp with time zone
data type: 带at time zone
子句的to_timestamp_tz()
函数可用于将字符串文字转换timestamp with time zone
数据类型的timestamp with time zone
值:
SQL> with t1(tm) as(
2 select '2013-11-08T10:11:31+02:00' from dual
3 )
4 select to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
5 at time zone '+4:00' as this_way
6 , to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
7 at time zone 'Europe/Moscow' as or_this_way
8 from t1
9 /
Result: 结果:
THIS_WAY OR_THIS_WAY
----------------------------------------------------------------------------
2013-11-08 12.11.31 PM +04:00 2013-11-08 12.11.31 PM EUROPE/MOSCOW
And then, we use cast()
function to produce a value of date
data type: 然后,我们使用cast()
函数生成date
数据类型的值:
with t1(tm) as(
select '2013-11-08T10:11:31+02:00' from dual
)
select cast(to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
at time zone '+4:00' as date) as this_way
, cast(to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
at time zone 'Europe/Moscow' as date) as or_this_way
from t1
This_Way Or_This_Way
------------------------------------------
2013-11-08 12:11:31 2013-11-08 12:11:31
Find out more about at time zone clause and to_timestamp_tz() function. 了解有关time zone子句和to_timestamp_tz()函数的更多信息。
SELECT
CAST((FROM_TZ(CAST(timezonefield AS TIMESTAMP),'GMT') AT TIME ZONE 'CET') AS DATE)
FROM table;
Converts a timestamp in GMT to date in Central European time 将GMT中的时间戳转换为中欧时间的日期
if you want your timestamp with timezone to convert to a date in sync with "sysdate" then use the following: 如果您希望带有时区的时间戳转换为与“sysdate”同步的日期,请使用以下命令:
select CAST(to_timestamp_tz('2013-11-08T10:11:31-02:00',
'yyyy-mm-dd"T"hh24:mi:sstzh:tzm') at time zone to_char(systimestamp,
'tzh:tzm') AS DATE)
from dual
to cast time stamp to date : 到目前为止的时间戳:
cast(registrationmaster.Stamp5DateTime as date) >= '05-05-2018' AND cast(registrationmaster.Stamp5DateTime as date) <= '05-05-2018' cast(registrationmaster.Stamp5DateTime as date)> = '05 -05-2018'AND cast(registrationmaster.Stamp5DateTime as date)<= '05 -05-2018'
WITH t1 (tm) AS (SELECT TIMESTAMP '2021-12-14 15:33:00 EET' FROM DUAL) WITH t1 (tm) AS (SELECT TIMESTAMP '2021-12-14 15:33:00 EET' from DUAL)
SELECT 'EET' tz, CAST (tm AT TIME ZONE 'Europe/Kaliningrad' AS DATE) AS datetime FROM t1 union SELECT 'MSK' tz, CAST (tm AT TIME ZONE 'Europe/Moscow' AS DATE) AS datetime FROM t1 union SELECT 'CET' tz, CAST (tm AT TIME ZONE 'Europe/Prague' AS DATE) AS datetime FROM t1 union SELECT 'UTC' tz, CAST (tm AT TIME ZONE 'UTC' AS DATE) AS datetime FROM t1 SELECT 'EET' tz, CAST (tm AT TIME ZONE 'Europe/Kaliningrad' AS DATE) AS datetime FROM t1 union SELECT 'MSK' tz, CAST (tm AT TIME ZONE 'Europe/Moscow' AS DATE) AS datetime FROM t1 union SELECT 'CET' tz, CAST (tm AT TIME ZONE 'Europe/Prague' AS DATE) AS datetime FROM t1 union SELECT 'UTC' tz, CAST (tm AT TIME ZONE 'UTC' AS DATE) AS datetime FROM t1
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