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ODBC connection timeout to Cygnet database

Posted on 2013-10-22
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Last Modified: 2013-10-28
Anyone have any experience with connecting to a Cygnet database via Access or SQL Server?

Specifically, I'm interested in linking to the vhs.HistoricalValues table, which apparently is quite large.  I have a machine DSN created for Cygnet, but I continue to get timeouts when I try to link to the database.
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Question by:Dale Fye (Access MVP)
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Assisted Solution

by:Jeffrey Coachman
Jeffrey Coachman earned 250 total points
ID: 39593051
What version of Access?

In Access there are some options available to set the timeout.
(With such a large table, the timeout setting may need to be increased)

Access Options
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Accepted Solution

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Dale Fye (Access MVP) earned 0 total points
ID: 39593686
Thanks, Jeff.

I realized that my problem was that I was trying to import all of the data, rather than link to the table.  When I linked to the table it came right up.

Then I changed the query's timeout property to 0 when I'm running queries.  They [the queries] are still running terribly long.  It may be that I just don't understand their table structure yet, but I'll eventually get it figured out and hopefully the queries will not take as long to run.

I'm sure they have a good reason (Cygnet is one of the databases used by the big oil and gas producers), but they have a Description column and a Value column in this table, with something over 100 values in the Description column (per well, per time period), rather than having 100 columns and one record per well.  Means you have to query on that text field for the results you want and that they have over 100 times as many rows as they need.
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Expert Comment

by:Jeffrey Coachman
ID: 39593883
Oh, did not realize that was you Dale...
Proves that I don't look at member names...
;-)

Sorry I could not help more, but glad you got it resolved...
;-)

Jeff
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Author Comment

by:Dale Fye (Access MVP)
ID: 39593981
Jeff,

I kept looking for those properties in the 2010, but just couldn't seem to find them.  Appreciated that input.

The data structure in this table I'm dealing with is extremely frustrating, I think I preferred not being able to access the table to having to figure out how to pull the information I need.  There are a couple of other tables I need to dig into to see if they provide some insight.  Otherwise, I'm going to have to build my own data structure and import data into that.
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Expert Comment

by:Jeffrey Coachman
ID: 39594053
...oh,

I might have used Access 2013, but those same setting exist do in 2010.
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Author Closing Comment

by:Dale Fye (Access MVP)
ID: 39605029
Discovered that I was trying to import the table, not link to it.
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