Neither `LEFT(` or `RIGHT(` are valid syntax. `LEFT(APN_D, 3)` could be `SUBSTRING(APN_D, 1, 3)` `RIGHT(APN_D, 3)` could be `SUBSTRING(APN_D, 7, 3)` (or perhaps `SUBSTRING(APN_D, -3)`) Alternatively, create the SQL functions `LEFT` and `RIGHT`.
Neither `LEFT(` or `RIGHT(` are valid syntax. `LEFT(APN_D, 3)` could be `SUBSTRING(APN_D, 1, 3)` `RIGHT(APN_D, 3)` could be `SUBSTRING(APN_D, 7, 3)` (or perhaps `SUBSTRING(APN_D, -3)`) Alternatively, create the SQL functions `LEFT` and `RIGHT`.