When you insert new records into an SQL database, you may run into issues where you accidentally overwrite records that are already present due to a duplication issue. You can use a simple alteration ...
I turned up something in a search I wanted to confirm - that I can't do the following:<BR><BR>INSERT INTO table_a<BR>(col_b, <BR> col_c)<BR>VALUES<BR>('blah',<BR>SELECT id FROM table_b WHERE name IS ...