Ms access update query not updating table
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Secondly, if the source table is a linked table, we can resort to a two-step process.
By default, when you drag one field from one Table to another field, the relationship built is Inner Join (return result where both keys are matched).
Source table: Customer Sales (this is a linked table in Access) Target table: Customer Sales_Retail (this is an Access local table) What we want to do is to change Sales Date value in the Customer Sales_Retail table to new sales date stored in the linked table. It's less efficient than using inner join because join can take advantage of the index on the join column if it exists. The first one is a make-table query and the other one is a cross-table update query.
The three queries below produce the same result, but none of them succeeded due to the Access error "Operation must use an updatable query". update Customer Sales_Retail as a inner join ( select Customer ID, Sales Date from Customer Sales where Customer ID in (select distinct Customer ID from Customer Sales_Retail) ) as b on a. Step #1: Make-Table query - create an intermediate (temporary but physical) local table To sum up, when we do multiple table updates in MS Access, first we need to make sure that the source table contains unique data in the joined column(s).
We then update the matching data in the local target table by using a join with the temporary table. Copyright© Geeks No portion may be reproduced without my written permission.
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