----------------------- | rcu Customer | |=====================| | cus_s: customer | ----------------------- | | ------------------------------------ | | vrcx_cus Customer Short Name | +-----------------|==================================| | | cus_s: customer | | ------------------------------------ | | | ---------------------------------------- | | rud User Defined Customer Fields | +-----------------|======================================| | | cus_s: customer | | ---------------------------------------- cus_s | | | ---------------------------------------- | | ruet User Defined Customer Table | +---------------->|======================================| | | cus_s: customer | | | unique_l: record # | | ---------------------------------------- | | | ----------------------- | | ral Lessee | +---------------->|=====================| | | les_s: lessee | | | cus_s: customer | | ----------------------- | | | ----------------------- | | rls Lease | +---------------->|=====================| | lse_s: lease | | cus_s: customer | -----------------------
A join with the rls table on rls.cus_s is non-indexed and requires a search of the entire rls table.