?
Solved

Load Oracle tbl using pass through query

Posted on 2002-03-19
4
Medium Priority
?
462 Views
Last Modified: 2006-11-17
What is the syntax for loading an Oracle from an access tbl using a pass through query?  I'm not sure how to reference the access table in the sql statement.

0
Comment
Question by:martinre
  • 2
4 Comments
 
LVL 9

Expert Comment

by:ornicar
ID: 6880958
The pass through query will be executed on the server side, so I'm afraid that your Access table will not be seen from there. Can't you use a normal query to populate the Oracle linked table thru ODBC?
0
 

Author Comment

by:martinre
ID: 6881095
yes I can but it is taking a long time to load the Oracle table.  I am looking for a faster method of loading.

0
 
LVL 9

Expert Comment

by:ornicar
ID: 6881155
I am not sure where the bottleneck is. Is is Access, or is it Oracle: Try to load your Access table into another Access database.

If it is faster, then you will need to drop the indexes on the Oracle table before the upload, and recreate them when finished. This is what is usually done. Also, if the table is large, you could tune your oracle.ini file, increasing LARGE_POOL_SIZE and mostly SHARED_POOL_SIZE. (I personally doubled the default values)

If it is not faster, Access is the bottleneck and all you can try is compacting the database, or optimizing the query. Can you paste the SQL here?

0
 
LVL 54

Accepted Solution

by:
nico5038 earned 200 total points
ID: 6881203
This would involve the "dynamic" generation of INSERT statements with filled fields where the INSERT statement's syntax is as under Oracle.

I would create a function for this to read the access table "cursored" row by row and place that in the passthrough query like:

dim qd as querydef
dim rs as recordset

set qd = currentdb.querydefs("your passthrough query")
set rs = currentdb.openrecordset("your access table")

WHILE not rs.eof
 strSQL = "INSERT INTO yourOracleTableName field1, field2 VALUES (" & rs!field1 & "," & rs!field2 & ");"
 td.SQL = strSQL
 currentdb.execute ("your passthrough query")
 rs.movenext
WEND


It's air-code, but I guess you get the idea.

Nic;o)


0

Featured Post

Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Instead of error trapping or hard-coding for non-updateable fields when using QODBC, let VBA automatically disable them when forms open. This way, users can view but not change the data. Part 1 explained how to use schema tables to do this. Part 2 h…
If you’re using QODBC to update QuickBooks data from Microsoft® Access but Access is not showing the updated data, you could have set up QODBC incorrectly.
Basics of query design. Shows you how to construct a simple query by adding tables, perform joins, defining output columns, perform sorting, and apply criteria.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
Suggested Courses

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question