MySQL table primary keys and unique indexes prevent multiple rows with the same index from being added to the table. If you try to insert a duplicate row with a ...
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 ...
Special characters require the MySQL escape character to indicate to the server that you want to insert the characters without executing any secondary code. Special characters such as commas and ...
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