MS Access多用户同时选择不同的记录

Question

In our multi-user Access environment, sometimes it is necessary to perform different actions on a group of records. In the Orders table, for example, a user may want to delete a group of orders, or to print out a group of records, etc. To accomplish this, in the Orders table, I created a boolean field called aSelect (the "a" is to avoid the "Select" SQL reserved keyword). On the Orders form, users can check off the orders which they want to process by clicking the checkbox for the aSelect field and then click "print", "delete", or whatever other operation. The code behind the form then says to process the operation on all Orders WHERE ASELECT=TRUE

The problem is that, (while it hasn't happened yet), the aSelect checkbox is bound to the underlying field in the table, and two users can change aSelect at the same time. So, suppose user A selects two records to delete, but before he hits the delete button, another user attempting to print a 100 records selects 100 records. The result will be that all 100 records will be deleted--not the intended result.

Any solutions or alternatives? This scenario plays out numerous times throughout the database. The Orders table is just one example.

Thanks,

Answer 1

Create a table with a username/userid column and an OrderID column.

When the user makes a selection, add a record to this table with the OrderID and username, then when running your query just join this selection table or use an IN() clause and filter by username.

Voila - user specific selections, which could be improved/expanded upon but this is my basic offering.