Alter Table Purpose The Alter Table statement adds a column, removes a column, or redefines a column in a table. The table being altered can be either a remote or local table. A remote table is a Salesforce object and is exposed in the SFORCE schema. A local table is maintained by the driver and is local to the machine on which the driver is running. A local table is exposed in the PUBLIC schema. For information on... See Altering a remote table Altering a Remote Table Altering a local table Altering a Local Table Altering a Remote Table Altering a Local Table