Solved

Date format in sql

Posted on 2015-02-17
11
451 Views
Last Modified: 2015-03-09
How can I return 2/01/2015 to below string format varchar (please) in sql?

2/01/2015 to 02/01/2015
2/01/2015 to get date only 01
2/01/2015 to get month only 02


SELECT DATEPART(d, '2/01/2015')   return 1
select DATEPART(m, '2/01/2015')    return 2
0
Comment
Question by:VBdotnet2005
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
11 Comments
 
LVL 75

Expert Comment

by:Anthony Perkins
ID: 40615659
This is a lot easier if you are using SQL Server 2012...

However, since you cannot use the FORMAT function, your only recourse is CONVERT as in:
DECLARE @YourDate date = '20150201'
SELECT CONVERT(varchar(10), @YourDate, 101)
SELECT SUBSTRING(CONVERT(varchar(10), @YourDate, 101), 4, 2)
SELECT SUBSTRING(CONVERT(varchar(10), @YourDate, 101), 1, 2)
0
 

Author Comment

by:VBdotnet2005
ID: 40615664
Hi Anthony,
My string is 2/01/2015  not 20150201'.
0
 
LVL 75

Expert Comment

by:Anthony Perkins
ID: 40615669
This is how you could do it with SQL Server 2012:
DECLARE @YourDate date = '20150201'
SELECT FORMAT(@YourDate, 'MM/dd/yyyy')
SELECT FORMAT(@YourDate, 'dd')
SELECT FORMAT(@YourDate, 'MM')
0
Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

 
LVL 75

Expert Comment

by:Anthony Perkins
ID: 40615672
My string is 2/01/2015  not 20150201'.
What data type is it exactly in SQL Server?
0
 

Author Comment

by:VBdotnet2005
ID: 40615683
It is varchar(12).
0
 

Author Comment

by:VBdotnet2005
ID: 40615691
We have sql2008.

SELECT CONVERT(varchar(10), '2/01/2015'      , 101)
2/01/2015
SELECT SUBSTRING(CONVERT(varchar(10), '2/01/2015', 101), 4, 2)
1/
SELECT SUBSTRING(CONVERT(varchar(10), '2/01/2015', 101), 1, 2)
2/
0
 

Author Comment

by:VBdotnet2005
ID: 40615693
Can we return 01 for date and month 02?
0
 

Author Comment

by:VBdotnet2005
ID: 40615694
Also date should be 02/01/2015 format.
0
 
LVL 75

Expert Comment

by:Anthony Perkins
ID: 40615713
Try it this way:
DECLARE @YourVarcharDate varchar(12) = '2/01/2015'         
DECLARE @YourDate date = CONVERT(date, @YourVarcharDate, 101)
SELECT CONVERT(varchar(10), @YourDate, 101)
SELECT SUBSTRING(CONVERT(varchar(10), @YourDate, 101), 4, 2)
SELECT SUBSTRING(CONVERT(varchar(10), @YourDate, 101), 1, 2)

Open in new window

0
 
LVL 49

Expert Comment

by:PortletPaul
ID: 40615731
I would like to point out that a string is always a string. Sounds simple enough until you see this:

'2/01/2015'

because it looks like a date, but it remains a string (note the single quotes!) and it is NOT a date unless it is converted.

To do what you want, it needs to become a date first and THEN you can use date functions such as DATEPART()

nb: In the database date/datetime/time information is NOT stored in a human readable manner but stored as sets of numbers.

so in addition to the comment above
DECLARE @YourVarcharDate varchar(12) = '2/01/2015'         
DECLARE @YourDate date = CONVERT(date, @YourVarcharDate, 101)
SELECT CONVERT(varchar(10), @YourDate, 101)
SELECT SUBSTRING(CONVERT(varchar(10), @YourDate, 101), 4, 2)
SELECT SUBSTRING(CONVERT(varchar(10), @YourDate, 101), 1, 2)

-- now date functions will work too

select datepart(month,@YourDate)
select datepart(year,@YourDate)
select datename(weekday,@YourDate)

Open in new window


no points please
0
 
LVL 69

Accepted Solution

by:
Scott Pletcher earned 500 total points
ID: 40616916
SELECT convert(varchar(2), cast('2/01/2015' as datetime), 101) as month,
    convert(varchar(2), cast('2/01/2015' as datetime), 103) as day

SELECT convert(varchar(2), input_date, 101) as month,
     convert(varchar(2), input_date, 103) as day
FROM (
    select cast('2/01/2015' as datetime) as input_date
) AS test_data
0

Featured Post

Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

JSON is being used more and more, besides XML, and you surely wanted to parse the data out into SQL instead of doing it in some Javascript. The below function in SQL Server can do the job for you, returning a quick table with the parsed data.
In the first part of this tutorial we will cover the prerequisites for installing SQL Server vNext on Linux.
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question