Visual Basic 6 Products. Total VB Statistics. Total VB Enterprise Suite. Other Products. Sentinel Visualizer. Total ZipCode Database. All Products: Demos, Catalog, Awards, etc. All Products. Product Awards. Forum and Ticket Submissions. Support Options. Product Updates. The updated value can be: The same value for all records A value from another field in that table updates the field based on a field's value in its own record A value from a field in a linked table An expression based on values in the table or linked tables multiple fields can be used to calculate the new value A VBA function value which can include field values as its parameters Your own VBA user defined function that may or may not include field values as parameters.
Only records that satisfy the expression are updated. Update Query Examples. Update Query Fails to Run. This can be due to several reasons: The database file is set to ReadOnly. None of the data can be modified. Change this at the Windows level. If the database is on a CD, copy it to your hard disk. If you're using Access workgroup security, you may not have rights to edit the data. In this case, login as the administrator or with a user name and password that gives you the appropriate rights.
If the tables is linked, you may not have rights to modify the data on the backend data source. Assuming you can edit your table, your query may fail and display this error message when you run it: Operation must use an updatable query Error Operation Failed If so, check out our paper on Error Operation must use an updatable query: Dealing with Non-Updateable Queries and the Use of Temporary Tables in Microsoft Access which discusses some of the issues and workarounds.
Hope this helps! News Features. Microsoft Access Query Center. Retrieving Data. Union All SQL. Action Queries. I'm working in Access I have a table "tblTest" with 6 fields A, B, C, etc. There is data in fields A, B, C, D. There is no data in fields E, and F. I have a form "frmTest" that has 6 text input boxes that correspond to each field in the table. This form also has a button to run the update query.
On the form, I would like to search the table based on the data entered in boxA, boxB, boxC, and boxD - and then update all records that match the query with the contents of box E and box F. However if the contents of either boxE or boxF are left blank, I don't want field E or F to update the table with a null value.
In addition, I don't want the values entered in boxA, boxB, boxC, or boxD to update the table, because a user might use a wildcard value in their search.
No, don't put the single-quotes around the Form Control references. Delimiting them with single-quotes make them literal Strings which will not work as you want. Basically, the Update Query works but it will not find any matching record to update since there is no Field value that looks like the literal String '[Forms]!
It may be easier if you test with just 1 criterion for the moment, e. First post an example of how data looks now and then using that sample how you want it to look after the update. Second create a select query with all fields, open in design view, click on VIEW pulldown and select SQL View, highlight all, copy, and paste in a post.
Hi, Thanks for your help! I've tried the query posted, however I get a syntax error, stating "missing operator" and then it lists the contents of the where statement. Not sure what is wrong - it matches the solution provided above I have another question about this update statement.
If boxE is left blank, and boxF has the value "completed" in it, will this update statement insert the value "completed" in field F, for all records that match the criteria set forth in boxA, boxB, boxC, and boxD?
I would like my query to be able to do that. In the case above, I don't want to update field E, and I do want to update field F. The semi-colon is not important. Please copy and paste your actual SQL in your reply. You asked "However if the contents of either boxE or boxF are left blank, I don't want field E or F to update the table with a null value. I wondered how you made a mistake, anyway. My code that I copied from Van that he seemed to copy from someone else will only do this:.
Oops, I found my syntax mistake. Viewed times. As shown in the VBA code below, I've tried closing and reopening the queries every rows, as well as using transactions. Neither technique results in an improvement. I've tried disabling then re-enabling and extending Access' SharePoint caching mechanism, with no success. I've tried using parameterized queries.
This technique does not work as we must update a number of memo fields, and query parameters max out at characters. Workspaces 0 Do While Not oRs.
EOF oWrkSpc. CommitTrans If oRs. Print strmsg, Now oRs. Close oQdfUpdt. Rollback Debug. Print Err. Number, Err. Description logError Err. Erik A Add a comment.
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