Question

我有一个SQL Server表，列TaskAssignDate，其中包含

等数据

2017-09-02 00:00:00.000

我想从该列中分隔日期和时间，并在不同的列中显示数据。

我有像这样的SQL查询

select 
    TaskAutoId, UserAutoId,
    CONVERT(varchar, TaskAssignDate, 100) as TaskAssignDate,
    TaskDescription, TaskStartDate,
    CONVERT(varchar, TaskEndDate, 100) as TaskEndDate,
    IsCloseByUser
from 
    tblTask
where 
    IsSelfAssign = 1

我想编辑以下查询，并将我的列（taskassigndate）拆分为两列

这是一种正确的方法吗？

Answer 1

您可以使用CAST以及要投射到的相应数据类型，DATE和TIME：

select TaskAutoId
    , UserAutoId
    , CONVERT(varchar, TaskAssignDate, 100) as TaskAssignDate
    , TaskDescription
    , TaskStartDate
    , CONVERT(varchar, TaskEndDate, 100) as TaskEndDate
    , IsCloseByUser
    , CAST(TaskAssignDate AS DATE) TaskAssignDate -- the date part
    , CAST(TaskAssignDate AS TIME) TaskAssignTime -- the time part
from tblTask
where IsSelfAssign = 1

Answer 2

SQL Server 2008及更高版本：

-- Select date
SELECT CAST(GETDATE() AS DATE);

-- Select time
SELECT CAST(GETDATE() AS TIME);

Answer 3

试试这个

select TaskAutoId
    , UserAutoId
    , CONVERT(varchar, TaskAssignDate, 100) as TaskAssignDate
    , TaskDescription
    , TaskStartDate
    , CONVERT(varchar, TaskEndDate, 100) as TaskEndDate
    , IsCloseByUser
    , CONVERT(VARCHAR(10), TaskAssignDate, 101) TaskAssignDate -- the date    part
    , CONVERT(VARCHAR(10), TaskAssignDate, 108) TaskAssignTime -- the time part
from tblTask
where IsSelfAssign = 1

如何分隔日期和时间并在SQL Server的单独列中显示？

3 个答案: