SQL Query Help from '4/14' to 'Apr-14'

Experts - I have a table which has more than a million rows. due to bad data format, i have a column which has data like


I need to convert them to

Kindly help.
ManjuIT - Project ManagerAsked:
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Brian CroweDatabase AdministratorCommented:
My first response is don't do that.  Store them as dates.  In case that isn't possible...

I will assume that the year is 2015 in those incomplete dates or that it doesn't matter.

DECLARE @String      VARCHAR(10) = '4/15'

SELECT REPLACE(CONVERT(VARCHAR(6), CONVERT(DATETIME, @String + '/2015', 101), 7), ' ', '-')

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Mike EghtebasDatabase and Application DeveloperCommented:
	Declare @dt varchar(10) = '4/14'
	select Case left(@dt,CHARINDEX('/',@dt)-1)
	          when 1 then 'Jan'
			  when 2 then 'Feb'
			  when 3 then 'Mar'
			  when 4 then 'Apr'
			  when 5 then 'May'
			  when 6 then 'Jun'
			  when 7 then 'Jul'
			  when 8 then 'Aug'
			  when 9 then 'Sep'
			  when 10 then 'Oct'
			  when 11 then 'Nov'
			  when 12 then 'Dec'
		 end + substring(@dt,CHARINDEX('/',@dt),3)

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Microsoft SQL Server 2008

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