TREX search engine
search engine in SAP NetWeaver
TREX is a search engine in the SAP NetWeaver integrated technology platform produced by SAP SE using columnar storage. The TREX engine is a standalone component that can be used in a range of system environments but is used primarily as an integral part of SAP products such as Enterprise Portal, Knowledge Warehouse, and Business Intelligence (BI, formerly SAP Business Information Warehouse). In SAP NetWeaver BI, the TREX engine powers the BI Accelerator, which is a plug-in appliance for enhancing the performance of online analytical processing. The name "TREX" stands for Text Retrieval and information EXtraction, but it is not a registered trademark of SAP and is not used in marketing collateral.
Search functions
TREX supports various kinds of text search, including exact search, boolean search, wildcard search, linguistic search (grammatical variants are normalized for the index search) and fuzzy search (input strings that differ by a few letters from an index term are normalized for the index search). Result sets are ranked using term frequency-inverse document frequency (tf-idf) weighting, and results can include snippets with the search terms highlighted.
TREX supports text mining and classification using a vector space model. Groups of documents can be classified using query based classification, example based classification, or a combination of these plus keyword management.
TREX supports structured data search not only for document metadata but also for mass business data and data in SAP BusinessObjects. Indexes for structured data are implemented compactly using data compression and the data can be aggregated in linear time, to enable large volumes of data to be processed entirely in memory.
Begin with the source’s own compact description: “TREX search engine” is search engine in SAP NetWeaver. The dossier treats that line as a proposition to test through TREX, search and engine, not as a finished interpretation.
Why this record matters
The phrase “search engine in SAP NetWeaver” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 18, 2026. The linked authority identifier is Q17087541. None of the 0 selected statements returned an explicit reference.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “TREX search engine”, its source revision and the description used here.
- Expand the search: follow TREX search engine primary sources, TREX search engine archive and TREX research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “TREX search engine”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “TREX search engine” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.