devxlogo

Using Counters

Using Counters

Question:
I am designing a database as a correspondance register.Each bit of inwards and outwards mail is given a unique number.

At present I have set up a counter field in Access that feedsmy VB GUI.

This works ok until you delete a record. It then leaves that old number out. To further explain, I will might have a lettersnumbered 1,2,3,4,5,6,7,8,9,10, etc. If I delete number 6 for what ever reason it completely vanishes, number and all. When I add a new record it goes to 11.

Is there a way that the database can reset the number counter.

Answer:
Typically, counters are not re-used for database integrity purposes. If you do want to reuse the deleted values, you will have to do it manually by changing the counter field to just a numeric field, and then searching the dataset for the first available position for a new record. There really is no automated way to do it, as the behavior you are describing is a feature and not a bug.

One other way to reset the counter is to perform the following steps:

  • Copy the table to another table, such as “Customers-New”
  • Open up the new table, then delete all of the data in it
  • Close the database and compact it
  • Open the old table, copy all of the data to the clipboard
  • Open the new (empty) table, and paste the data into it.

This will cause the autonumber field to start from 1 all over again.

See also  Is Machine Learning Automating Creativity in Graphic Design?
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist