Oracle9i Application Developer's Guide - Large Objects (LOBs) Release 1 (9.0.1) Part Number A88879-01 |
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Introduction to LOBs, 8 of 12
A function-based index is an index built on an expression. It extends your indexing capabilities beyond indexing on a column. A function-based index increases the variety of ways in which you can access data.
Function-based indexes cannot currently be built on nested tables. However, you can now build function-based indexes on LOB columns and varrays.
See Also:
Oracle9i Application Developer's Guide - Fundamentals, for more information about using function-based indexing. |
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