Which index type is designed to index catalog information?
CTXCAT is an index type that is designed to index catalog information such as product names, prices, descriptions, etc.CTXCAT indexes are suitable for e-commerce applications where users can query on multiple attributes of a product8. CTXCAT indexes are faster to create and maintain than CONTEXT indexes, which are designed to index large amounts of text such as documents, web pages, etc.CTXCAT indexes also support mixed queries that combine structured and unstructured predicates9.CTXRULE is an index type that is designed to index a set of queries or rules that can be evaluated against documents or rows in a table10.CONTAINS is not an index type, but a SQL operator that performs text searches on CONTEXT and CTXRULE indexes11.Reference:
Oracle Text Indexing Elements - Oracle Help Center, section ''CTXCAT Index Type''.
Oracle Text Application Developer's Guide - Oracle Help Center, section ''Choosing an Index Type'', subsection ''When to Use a CTXCAT Index''.
Oracle Text Indexing Elements - Oracle Help Center, section ''CTXRULE Index Type''.
CONTAINS - Oracle Help Center.
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