Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #42308

Re: How to find bad row with db api executemany()?

Date 2013-03-29 22:17 -0500
From Tim Chase <python.list@tim.thechases.com>
Subject Re: How to find bad row with db api executemany()?
References (1 earlier) <5155E32A.1000403@davea.name> <mailman.3971.1364595940.2939.python-list@python.org> <roy-A61512.20410329032013@news.panix.com> <mailman.3977.1364605026.2939.python-list@python.org> <roy-AE1A29.21192229032013@news.panix.com>
Newsgroups comp.lang.python
Message-ID <mailman.3982.1364613376.2939.python-list@python.org> (permalink)

Show all headers | View raw


On 2013-03-29 21:19, Roy Smith wrote:
> We're doing it all in one transaction, on purpose.  We start with
> an initial dump, then get updates about once a day.  We want to
> make sure that the updates either complete without errors, or back
> out cleanly. If we ever had a partial daily update, the result
> would be a mess.

Having had to do some similarly-sized bulk data loads (in my case,
MSSqlServer at $JOB) couple other ideas occur to me:

1) I believe MySQL has a side-loading function (I'd have to go
digging for it; a quick google suggests a "LOAD DATA INFILE"
statement[1]) that allows you to load data from an external file such
as an XML or CSV file

2) Load into a temp table in testable batches, then do some sort of
batch insert into your main table.  Again, a quick google suggest the
"INSERT ... SELECT" syntax[2]

-tkc

[1]
http://dev.mysql.com/doc/refman/5.1/en/load-data.html

[2]
http://dev.mysql.com/doc/refman/5.0/en/insert-select.html

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Re: How to find bad row with db api executemany()? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-03-29 18:25 -0400
  Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-29 20:41 -0400
    Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 11:57 +1100
      Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-29 21:19 -0400
        Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 13:05 +1100
        Re: How to find bad row with db api executemany()? Tim Chase <python.list@tim.thechases.com> - 2013-03-29 22:17 -0500
        Re: How to find bad row with db api executemany()? (PS) Tim Chase <python.list@tim.thechases.com> - 2013-03-29 22:38 -0500
        Re: How to find bad row with db api executemany()? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-03-29 23:38 -0400
    Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-29 22:44 -0400
      Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 13:49 +1100
        Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-29 23:09 -0400
          Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 14:14 +1100
            Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-29 23:36 -0400
              Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 14:57 +1100
                Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-30 00:10 -0400
                Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 15:21 +1100
                Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-30 10:19 -0400
        Re: How to find bad row with db api executemany()? rusi <rustompmody@gmail.com> - 2013-03-29 20:13 -0700
          Re: How to find bad row with db api executemany()? rusi <rustompmody@gmail.com> - 2013-03-29 20:15 -0700
          Re: How to find bad row with db api executemany()? Roy Smith <roy@panix.com> - 2013-03-29 23:40 -0400
      Re: How to find bad row with db api executemany()? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-03-29 23:53 -0400
      Re: How to find bad row with db api executemany()? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-03-30 00:19 -0400
      Re: How to find bad row with db api executemany()? Chris Angelico <rosuav@gmail.com> - 2013-03-30 15:24 +1100
      Re: How to find bad row with db api executemany()? Tim Chase <python.list@tim.thechases.com> - 2013-03-30 06:38 -0500

csiph-web