The HSDCHCLA table is used for the class list extension and is populated during the Work with Class phase. The following table describes the columns in the HSDCHCLA table:
| Column | Type | Length | Decimal | Domain | 
|---|---|---|---|---|
| CLATYPE | BINARY | 3 | 0 | class identifier | 
| CHGPGM | CHARACTER | 8 | 0 | Data Masking routine | 
| METHOD | CHARACTER | 10 | 0 | method | 
| MCRECID | BINARY | 4 | 0 | machine/company ID |