Click here to monitor SSC
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Row_Number () function doubt


Row_Number () function doubt

Author
Message
snigdhandream
snigdhandream
Grasshopper
Grasshopper (20 reputation)Grasshopper (20 reputation)Grasshopper (20 reputation)Grasshopper (20 reputation)Grasshopper (20 reputation)Grasshopper (20 reputation)Grasshopper (20 reputation)Grasshopper (20 reputation)

Group: General Forum Members
Points: 20 Visits: 80
I have a large table having millions of rows. There is one datetime column which captures the date and time a row is inserted to the table. Now, I want to copy the table's data into another server's table with same structure. Here the client wants me to migrate the data in a page by page manner (say 100 rows at a time). This table does not have any identity or unique key. I am thinking of using the row_number () function on the datetime column. But I have one doubt... say the trasaction fails somewhere in between... say at row number 115... it is written like the process will start again from 101 and not from 1. But is there any guarantee that the row_numbers will be same considering the datetime field can have duplicate values?




Regards,
Snigdha
GilaMonster
GilaMonster
SSC-Forever
SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)SSC-Forever (47K reputation)

Group: General Forum Members
Points: 47159 Visits: 44346
Duplicate post. No replies to this thread please. Direct replies to:http://www.sqlservercentral.com/Forums/Topic1317787-391-1.aspx


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search