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sqlsql-serverstringdatetime
NeilG
NeilG

Reputation: 4160

SQL Server convert string to datetime

This is not asking how to convert an arbitrary string to datetime in MSSQL such as this question.

I can control the string format but I want to know what the MSSQL syntax is for updating a datetime field using a date string.

Upvotes: 49

Views: 381770

Answers (2)

NeilG
NeilG

Reputation: 4160

For instance you can use

update tablename set datetimefield='19980223 14:23:05'
update tablename set datetimefield='02/23/1998 14:23:05'
update tablename set datetimefield='1998-12-23 14:23:05'
update tablename set datetimefield='23 February 1998 14:23:05'
update tablename set datetimefield='1998-02-23T14:23:05'

You need to be careful of day/month order since this will be language dependent when the year is not specified first. If you specify the year first then there is no problem; date order will always be year-month-day.

Upvotes: 28

Bork Blatt
Bork Blatt

Reputation: 3368

UPDATE MyTable SET MyDate = CONVERT(datetime, '2009/07/16 08:28:01', 120)

For a full discussion of CAST and CONVERT, including the different date formatting options, see the MSDN Library Link below:

https://learn.microsoft.com/en-us/sql/t-sql/functions/cast-and-convert-transact-sql

Upvotes: 113

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