我将varchar列作为数据集:
20110712
20141229
20100222
20140408
20131117
20130912
20140702
20110405
需要转换datetime数据类型。我试过:CONVERT(date,column_name)但它返回错误:
Msg 241, Level 16, State 1, Line 1
Conversion failed when converting date and/or time from character string.
我如何确保这可行?
答案 0 :(得分:1)
如果您的日期是varchar,那么您应该能够使用CONVERT(DATE,[date_field],112)
DECLARE @dates TABLE
(
[date] varchar(10)
)
INSERT INTO @dates([date])
VALUES('20110712'),('20141229'),('20100222'),('20140408'),('20131117'),('20130912'),('20140702'),('20110405')
SELECT CONVERT(date,[date],112)
FROM @dates