As title, rule out other fields, only password field will cause the error, in the picture * is a display of style, not value, can be ignored, the intact SQL statements are as follows:

Dim MySqlDataAdapter1 As MySqlDataAdapter=New MySqlDataAdapter (" Select id, pc_id As' off-balance-sheet key equipment, db_type, db_name As' database name, db_user As' database username, db_pwd As' database password, db_code As' database code, db_drive As' database driven string, db_ip As' database address From dbinfo "+" where pc_id="+ pc_id, MySqlConnection1)