(1) Note that ‘This is a string’ is a string. On the other hand, “This is a field name” is a field name. Single quotes denote a constant string; double quotes enclose a field name that would not otherwise be legal. So, if you want to insert items into the field, use single quotes. The error message means that it’s looking for a field named opn203, which is the same as “opn203″ and OPN203. Likely, you meant ‘opn203′.
(2) INSERT INTO x VALUES(y, z) means to insert one record into X with values Y and Z into the record’s (exactly) two columns. INSERT INTO x VALUES(y), VALUES(z) means to insert two records, one with the single field value Y, and one with the single field value Z. Note that not all versions of SQL can handle this, and you may have to code INSERT INTO x VALUES(y); INSERT INTO x VALUES(z).
Sheldon Linker (firstname.lastname@example.org)
Linker Systems, Inc. (www.linkersystems.com)