>>Happy new year to all....
>>I can't add a new record into my table. It says "Primary key uniqueness violated" How comes the problem?
>
>You've defined a primary or candidate index for your table - the value for the field or fields must be unique among all records. If you're getting this error when doing an APPEND BLANK, there's probably already a record in there with the primary key value of an empty record.
>
>Rather than using APPEND BLANK directly into the table, use INSERT, making certain to specify a unique value for the primary key field. If you're using parametized views with buffering, you can APPEND BLANK into a view and then populate the record; you still must make certain that the primary key value assigned to the record is unique before doing a TABLEUPDATE()

Ed, Edward, Nick
Thank you so much to you all. I understand the problem clearly now..