how can we update column in sql.

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Hey guys i have Table with Work_date(mm/dd/yyy) column as

SQL

id    work_date

1     1/2/2011
2     1/4/2011
3     5/10/2011
4     10/1/2012

But i want to update this work_date column as

SQL

id    work_date

1     01/02/2011
2     01/04/2011
3     05/10/2011
4     10/01/2012

Means i want to add Zero (0) if month/date is less than 10. So if any body have an idea kindly share to me.

Posted 4-Dec-12 2:11am

Mas11

Updated 4-Dec-12 2:32am

Tejas Vaishnav

v2

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Mycroft Holmes 5-Dec-12 3:09am

Listen to Andre, DON'T STORE YOUR DATE AS CHARACTER, this is one of the most basic errors you can make in database design. When you extract the DateTime data from the table is when you format it using the convert.

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André Kraak · Answer 1 · 2012-12-04T03:02:00

You really should consider changing the type of the work_date field to date[^] or datetime[^].
This will give you much more flexibility in using the data and allowing you to display the date in the format as specified by the user.

But to do what you want use the following UPDATE query:

SQL

UPDATE myTable
SET work_date = CONVERT( NCHAR(10), CONVERT( DATE, work_date, 101), 101)

First the text is converted[^] into a date, which in turn is converted back into a string.