Inserting NULL values in a database from VBA code

Question

I have 3 radioButtons (\"YES\", \"NO\", \"UNKNOWN\") wich matches a column from my database with 3 possible values (1, 0, NULL).

When the radioButton selected is \"

Answer 1

Just an idea for the future - whenever you are having a problem with big SQL code like this:

sqlQuery = "UPDATE candidatures SET offre_ID = " & idO & ", candidat_Nom = " & more and more more SQL here";"

Do the following:

1. Write debug.print sqlQuery after the code.
2. Take the result from the immediate window and inspect it.
3. Copy it and take it into Access query. It should work. If it does not - inspect and debug further.

Edit: If you have the time & the knowledge & the will to write good code, do not write code like this. You may suffer from SQL injection and other problems. Instead use the method from the answer of Mat's Mug.