Containment (WD) Index

The Containment (WD) index allows you to store words from a column string of CHAR, VARCHAR, and LONG VARCHAR data.

Note: To create LONG VARCHAR columns, you must be specifically licensed to use the unstructured data analytics functionality. See User-Defined Functions.

Recommended Use of WD
Use a WD index for the fastest access to columns that contain a list of keywords (for example, in a bibliographic record or Web page).
Advantages and Disadvantages of WD
Advantages and disadvantages of using a WD index.

Parent topic: Index Types Comparison

Created May 23, 2013. Send feedback on this help topic to Technical Publications: pubs@sybase.com