| tHSQLDbInput | Executes a DB query with a strictly defined order which must correspond to the schema definition and then it passes on the field list to the next component via a Main row link. |
| tHSQLDbOutput | Executes the action defined on the table and/or on the data contained in the table, based on the flow incoming from the preceding component in the Job. |
| tHSQLDbRow | Acts on the actual DB structure or on the data (although without handling data), depending on the nature of the query and the database. |