在Oracle Forms 6i中按删除按钮时，显示一个奇怪的错误

Question

Button has delete_record and commit_form .

In diagnose error it showing

Error in query:INSERT INTO user_details(EMPID USERNAME) VALUES (:1,:2).

Error: ORA-01400: cannot insert NULL into Author Id CAPPS" "USER_DETAILS" "PASSWORD").

How this insert query is firing by pressing delete button. And record is removing from the forms but it's not updated in table. I think when it comes to commit_form it's showing this error.

Answer 1

DELETE_RECORD built-in does what its name suggests - deletes a record from a block. Subsequent COMMIT_FORM commits all changes you've made in that form, not only the last action (ie deleted record).

It appears that there's a new (or updated) record which doesn't have the PASSWORD value entered, so COMMIT - while trying to save changes - fails with ORA-01400 and notifies you that you have to enter a missing value.

Make sure that there are no such rows before committing. One option is to remove the user-defined button and

• delete record using the appropriate toolbar button
• repeat the action (ie deleting) if there are more rows that shouldn't be there
• COMMIT using the toolbar button