Oracle Text provides several types of indexes, which you create depending on the type of application that you develop.

This chapter contains the following topics:

• About Oracle Text Indexes

• Considerations for Oracle Text Indexing

• Document Language

• Indexing Special Characters

• Case-Sensitive Indexing and Querying

• Document Services Procedures Performance and Forward Index

• Language-Specific Features

• About Entity Extraction and CTX_ENTITY

• Fuzzy Matching and Stemming

• Better Wildcard Query Performance

• Document Section Searching

• Stopwords and Stopthemes

• Index Performance

• Query Performance and Storage of Large Object (LOB) Columns

• Mixed Query Performance

• In-Memory Full Text Search and JSON Full Text Search