| Parameter | Description | 
| sname | The schema in which the replicated table is located. | 
| oname | The name of the replicated table for which you are creating a new column group. | 
| column_group | The name that you want assigned to the column group that you are creating. | 
| list_of_column_names | The names of the columns that you are grouping. This can either be a comma-separated list or a PL/SQL table of column names. The PL/SQL table must be of type dbms_repcat.varchar2s. Use the single value `*' to create a column group that contains all of the columns in your table. |