Through Database Design

Take into account the following database design considerations for reducing I/O:

Adding sets, indexes, pointers, redundancy
Changing set type, set (index) order for non-SQL defined databases
Changing location (area) of record or index, index and/or set stored VIA (or clustered)
Changing UNLINKED constraints to LINKED (SQL-defined databases) or repeating item (non-SQL defined databases)
Splitting a record