SQL Dates

I cannot convert nvarchar(25) to datetime.
201503171512

I need to create two columns
datetime dd-mm-yyyy-mmmm - 15-Mar-2015-1512

second column named time
1512 pm.

i've tried CONVERT(nvarchar(25),CONVERT(DATE,column,106),103) AS AdmittedDatetime,


thanks.
aneilgAsked:
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Vitor MontalvãoMSSQL Senior EngineerCommented:
You need to have the column in this format: '20150317 15:12'
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Vitor MontalvãoMSSQL Senior EngineerCommented:
So, if you can't change the data then you'll need to put the column values in the above format. For that you'll need to use some string functions:
CONVERT(nvarchar(25),CONVERT(DATE,LEFT(column,8) + ' ' + SUBSTRING(column,9,2) + ':' + RIGHT(column,2),106),103) AS AdmittedDatetime

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Phillip BurtonDirector, Practice Manager and Computing ConsultantCommented:
declare @column as nvarchar(25)
set @column = '201503171512'
select CONVERT(DATEtime,substring(@column,1,8)+N' ' +substring(@column,9,2) + N':' + substring(@column,11,2) + N':00',106) AS AdmittedDatetime
select convert(time,substring(@column,9,2) + N':' + substring(@column,11,2) + N':00',130) AS Admittedtime
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aneilgAuthor Commented:
thanks guys.
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Scott PletcherSenior DBACommented:
SELECT REPLACE(REPLACE(CONVERT(varchar(17), col1_datetime, 113), ' ', '-'), ':', '') AS datetime,
    RIGHT(col1, 4) + ' ' + CASE WHEN RIGHT(col1, 4) >= '12' THEN 'pm' else 'am' END + '.' AS time
FROM (
    SELECT CAST('201503171512' AS nvarchar(25)) AS col1
) AS test_data
CROSS APPLY (
    SELECT CAST(STUFF(STUFF(col1, 9, 0, ' '), 12, 0, ':') AS datetime) AS col1_datetime
) AS assign_alias_names
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aneilgAuthor Commented:
thanks.
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