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Tableadapter not updating database

Tableadapter not updating database

Update to work Originally Posted by ns10 Solved. I was indeed looking in the wrong place. I assumed that I was updating the original database I created with Access. I had no idea I had to look in the bin file for a copy of yet another coy.

Not quite sure about the reason behind this concept, but I'm sure it's a good one. For me setting the property of the local file to Do Not Copy created the results I was expecting, be it in a copy of my original database bu that is fine. Your solution is a bad idea. You were quite right that there is a very good reason for making the copy.

Access is a little bit different than some databases because you first create it in Access itself and then add it to your project. Either way, the database you add to your project should be your single source of truth.

That is your source database and it belongs in your project with your other source files. It should be kept in a pristine state though, i.

That's why a copy is made in your bin folder. It's the copy that you can mess about with as much as you want while testing, safe in the knowledge that your source database is still nice and clean. If you ever make a complete mess of your working copy or you change the schema in the source database or you just want to make a clean start, you simply copy the source over the working database again and you're good to go. If you have no clean source then you either have to build a new database from scratch or waste time cleaning up the original.

It also means that, when you are finished testing and you create a Release build, the IDE simply copies the clean source database into the Release bin folder and your user are guaranteed to get a clean database. That way, you won't keep blowing away your test database every time you build. A copy will be made the first time you build and you will keep using that copy each time you debug until such as you make a change to the source database.

At that stage the source will be newer than the working copy so a new copy will be created the next time you build, exactly as you would want if the schema has changed.

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Update Data from fire-safety-tokyo.org to MS Access Database Table



Tableadapter not updating database

Update to work Originally Posted by ns10 Solved. I was indeed looking in the wrong place. I assumed that I was updating the original database I created with Access. I had no idea I had to look in the bin file for a copy of yet another coy. Not quite sure about the reason behind this concept, but I'm sure it's a good one.

For me setting the property of the local file to Do Not Copy created the results I was expecting, be it in a copy of my original database bu that is fine. Your solution is a bad idea. You were quite right that there is a very good reason for making the copy. Access is a little bit different than some databases because you first create it in Access itself and then add it to your project.

Either way, the database you add to your project should be your single source of truth. That is your source database and it belongs in your project with your other source files. It should be kept in a pristine state though, i. That's why a copy is made in your bin folder. It's the copy that you can mess about with as much as you want while testing, safe in the knowledge that your source database is still nice and clean. If you ever make a complete mess of your working copy or you change the schema in the source database or you just want to make a clean start, you simply copy the source over the working database again and you're good to go.

If you have no clean source then you either have to build a new database from scratch or waste time cleaning up the original.

It also means that, when you are finished testing and you create a Release build, the IDE simply copies the clean source database into the Release bin folder and your user are guaranteed to get a clean database. That way, you won't keep blowing away your test database every time you build.

A copy will be made the first time you build and you will keep using that copy each time you debug until such as you make a change to the source database. At that stage the source will be newer than the working copy so a new copy will be created the next time you build, exactly as you would want if the schema has changed.

Tableadapter not updating database

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2 Comments

  1. I read a post saying this might be a problem if some fields in the db allow nulls, I do allow nulls in some fields.

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