ote:
> thx all, the source data is in text file.
>
>
>
>
> - Original Message -
> From: "h...@tbbs.net"
> To: mysql list
> Cc:
> Sent: Saturday, April 6, 2013 8:02 PM
> Subject: Re: update a row only if any column has changed, in a very large
&
thx all, the source data is in text file.
- Original Message -
From: "h...@tbbs.net"
To: mysql list
Cc:
Sent: Saturday, April 6, 2013 8:02 PM
Subject: Re: update a row only if any column has changed, in a very large table
>>>> 2013/04/06 13:56 -0700, Rajee
2013/04/06 13:56 -0700, Rajeev Prasad
I have a table with around 2,000,000 records (15 columns). I have to sync this
from an outside source once every day. not all records are changed/removed
/new-added everyday. so what is the best way to update only those which have
changed/added/or
If'n it were my nickel, here is how I would solve the problem (at a somewhat
high level). That is, assuming I had an ETL tool available.
1. Create landing tables for your source data.
2. Load data from the source table(s) to your new landing table(s).
3. Perform lookups from the new landing table
