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-- To get the last inserted auto-increment row ID: --
SELECT LAST_INSERT_ID( optional_expression )
-- If you have just inserted it using a command in C# use: --
int lastId = (Int32)yourCommand.LastInsertedId;
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mysql> select *from LastInsertedRow where Id=(SELECT LAST_INSERT_ID());
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//You need to use this in OpenCart for getting last insert id:
$this->db->getLastId()