1. A multitenant system, comprising: a computer, including a computer readable medium and processor; an application, executing on the computer, wherein the application includes one or more entities configured to be used by a plurality of tenants; a data source which includes one or more tables each associated with one of the one or more entities; and wherein for each entity, data for each of the plurality of tenants is stored in the same table and a tenant discriminator column is used to determine which data is associated with which tenant.