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 Extract only the last three days

Author  Topic 

cms9651
Starting Member

28 Posts

Posted - 2013-03-05 : 04:19:27
Extract only the last three days

hi all, hope in your help.

this is my procedure for export in txt file the values of the table in db sql server 2008.

the table is on a remote server and the field [myDateString] is nvarchar 255 and I'm not admin.

I need extract only the last three days for the table, in this moment extract all current year.

Can you help me ?
thank you
 EXEC master.dbo.sp_configure 'show advanced options',
1 RECONFIGURE EXEC master.dbo.sp_configure 'xp_cmdshell',
1 RECONFIGURE EXEC xp_cmdshell 'bcp "SELECT * FROM tbl WHERE YEAR(CAST(SUBSTRING([myDateString], 7, 4) AS DATETIME)) = 2013;"
queryout "\\myserver\public\tkt.txt" -T -c -t;'

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-03-05 : 04:35:02
make it like


EXEC master.dbo.sp_configure 'show advanced options',
1 RECONFIGURE EXEC master.dbo.sp_configure 'xp_cmdshell',
1 RECONFIGURE EXEC xp_cmdshell 'bcp "SELECT * FROM tbl WHERE CAST([myDateString] AS datetime)> = DATEADD(dd,DATEDIFF(dd,0,GETDATE()),-3)
AND CAST([myDateString] AS datetime) < DATEADD(dd,DATEDIFF(dd,0,GETDATE()),1) ;"
queryout "\\myserver\public\tkt.txt" -T -c -t;'


I hope your [myDateString] field is having values in valid date format

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
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cms9651
Starting Member

28 Posts

Posted - 2013-03-05 : 04:49:36
thank you for help.
your query not working... the output is null
the values of [myDateString] is 31/12/2012 09:01
SELECT
*
FROM
tbl
WHERE
(
CAST (
SUBSTRING ([myDateString], 7, 4) AS DATETIME
) > = DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()) ,- 3
)
AND CAST (
SUBSTRING ([myDateString], 7, 4) AS datetime
) < DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()),
1
));
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cms9651
Starting Member

28 Posts

Posted - 2013-03-05 : 05:11:59
If tried:

[SQL] SELECT
*
FROM
tbl
WHERE
(
CAST (
[myDateString] AS DATETIME
) > = DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()) ,- 3
)
AND CAST (
[myDateString] AS datetime
) < DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()),
1
))
[Err] 22007 - [SQL Server]Conversion failed when converting date and/or time from character string.
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-03-05 : 05:13:14
use it as suggested. I've not applied any SUBSTRING . copy and paste it as given

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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cms9651
Starting Member

28 Posts

Posted - 2013-03-05 : 05:17:49
Ok, but:

[SQL] SELECT
*
FROM
tbl
WHERE
(
CAST (
[myDateString] AS DATETIME
) > = DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()) ,- 3
)
AND CAST (
[myDateString] AS datetime
) < DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()),
1
))
[Err] 22007 - [SQL Server]Conversion failed when converting date and/or time from character string.
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-03-05 : 05:18:25
quote:
Originally posted by cms9651

If tried:

[SQL] SELECT
*
FROM
tbl
WHERE
(
CAST (
[myDateString] AS DATETIME
) > = DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()) ,- 3
)
AND CAST (
[myDateString] AS datetime
) < DATEADD(
dd,
DATEDIFF(dd, 0, GETDATE()),
1
))
[Err] 22007 - [SQL Server]Conversion failed when converting date and/or time from character string.



Thats the problem with not using proper datatype for fields.

make it like this and try


EXEC master.dbo.sp_configure 'show advanced options',
1 RECONFIGURE EXEC master.dbo.sp_configure 'xp_cmdshell',
1 RECONFIGURE EXEC xp_cmdshell 'bcp "SELECT * FROM tbl WHERE CONVERT(datetime,[myDateString],103)> = DATEADD(dd,DATEDIFF(dd,0,GETDATE()),-3)
AND CONVERT(datetime,[myDateString],103) < DATEADD(dd,DATEDIFF(dd,0,GETDATE()),1) ;"
queryout "\\myserver\public\tkt.txt" -T -c -t;'


also make sure you read this

http://visakhm.blogspot.in/2011/12/why-iso-format-is-recommended-while.html

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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cms9651
Starting Member

28 Posts

Posted - 2013-03-05 : 05:42:40
thanks a lot!
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-03-05 : 06:06:44
wc

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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