Re: Speeds using a transaction vrs not

No I did not do it in on transaction (although in .net I never started or
commited a transaction.

ODBC :
myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted)
' Assign transaction object for a pending local transaction
myCommand.Transaction = myTrans
'example of insert
'myCommand.CommandText = "Insert into Region (RegionID, RegionDescription)
VALUES (101, 'Description')"
myCommand.CommandText = insertsqltext
myCommand.ExecuteNonQuery()
myTrans.Commit()

.net driver:
Dim cmd As New NpgsqlCommand(insertsqltext, cnn)
cmd.ExecuteNonQuery()
cmd.Dispose()

Joel Fradkin

Wazagua, Inc.
2520 Trailmate Dr
Sarasota, Florida 34243
Tel. 941-753-7111 ext 305

jfradkin(at)wazagua(dot)com
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-----Original Message-----
From: Richard Huxton [mailto:dev(at)archonet(dot)com]
Sent: Wednesday, February 23, 2005 3:03 AM
To: Joel Fradkin
Cc: pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] Speeds using a transaction vrs not

Joel Fradkin wrote:
> I wrote a .net program to move my data to postgres (works great on
> SQ_ASCII).
>
> In fiddling around I tried it using the odbc driver and a transaction
> originally, but converted it to using the .net connectivity but no
> transaction.
>
> What I found was it moved my database (4 gig in MSSQL) in 2 hours using
the
> .net, but 12 hours with the odbc and transaction.

You *are* using transactions, you don't have a choice. Did you do the
transfer of all 4GB in ONE transaction with the ODBC? Please describe
the process in more detail.

--
Richard Huxton
Archonet Ltd