Oracle Text

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Oracle Text is search engine and text analysis software developed and sold by Oracle Corporation. It is proprietary software, sold as part of Oracle Database, a proprietary relational database management system.

When integrated with a text storage system, it can analyze text and provide text-filtering and text-reduction for speed-reading and summary-viewing. It can return grammatical assessments of the text it processes, checking for grammatical errors and rating the quality and style of the writing.


Oracle Corporation introduced Oracle ConText first as a software option, then as an Oracle data cartridge (a server-based software module) for text retrieval when it released version 8 of the Oracle database in 1997. It used the default schema CTXSYS and the default tablespace DRSYS.

With the appearance of version 8i of the Oracle database in 1999, a re-designed ConText became Oracle interMedia Text — part of the separately-priced Oracle interMedia bundle of products.

With the release of version 9i of the database in 2001 Oracle Corporation renamed the software as Oracle Text and again marketed it as a standalone subsystem, integrated with and included in the cost of the database software.

Oracle Corporation continues to support Oracle Text as of Oracle Database release 12[1] (2013).


Oracle Text uses the ctx library.[2]

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  1. ^ Note the manual Oracle Text Reference 12c Release 1 (12.1) (Redwood Shores, CA: Oracle Corporation, 2013), cited in: Greenwald, Rick; Stackowiak, Robert; Stern, Jonathan (2013). Oracle Essentials: Oracle Database 12c (5 ed.). O'Reilly Media, Inc. ISBN 9781449343170. Retrieved 2017-08-15.
  2. ^ Kumar, Arun; Kanagaraj, John; Stroupe, Richard (2005). "Customizing Oracle 10g Installation Options". Oracle Database 10g Insider Solutions. Sams. ISBN 9780672327919. Retrieved 2017-08-15. [...] you can set up Oracle text manually. [...] Change the library path environment variables for your platform to include the ORACLE_HOME/ctx/lib directory.