MATLAB: Primary key issue in insert a table into SQlServer database

Question

Don't know why but keep getting this error: java.sql.BatchUpdateException: Violation of PRIMARY KEY constraint 'PK__ANLS_SCO__DDF02C0878DED853'. Cannot insert duplicate key in object '********'. The duplicate key value is (Mar 13 2017 12:00AM, Jun 1 2017 12:00AM).

I have no clue why this is happening because yesterday I used insert and fastinsert on another table without any problem.

Thanks for any help!

Answer 1

I'm not sure what is not clear about the error. As it says, you're trying to add a row whose value for the primary key already exists in the table and you have a constraint on the table that the primary key must be unique.

In other words, you already have a row whose primary key value is (Mar 13 2017 12:00AM, Jun 1 2017 12:00AM). Your table schema forbids you to add another row with that same key.

Two possible solutions:

• remove the constraint on the primary key. Most likely a bad idea.
• do not try to add duplicate rows. Instead you can UPDATE the rows in question.