The IAlterTable interface exposes methods to alter the definition of tables, indexes, and columns.
Providers that implement IAlterTable should expose the data source information property DBPROP_ALTERCOLUMN.
| Method | Description |
| AlterColumn | Alters the column ID and/or properties associated with a column in a table. |
| AlterTable | Alters the table ID and/or properties associated with a table. |