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SAP HANA Developer Guide - Get a Free Blog

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Activates the full text index processing queue if it has been suspended<br />

To manipulate the processing of a queue:<br />

1. Identify which queue process you want to manipulate by using the monitoring view M_FULLTEXT_QUEUES.<br />

For information about the specific content of the view, see <strong>SAP</strong> <strong>HANA</strong> System Tables and Monitoring Views.<br />

2. Use the ALTER FULLTEXT INDEX statement to flush, suspend, or reactivate the queue.<br />

Use the following syntax:<br />

ALTER FULLTEXT INDEX FLUSH|SUSPEND|ACTIVATE QUEUE<br />

Related Links<br />

<strong>SAP</strong> <strong>HANA</strong> System Tables and Monitoring Views: M_FULLTEXT_QUEUES<br />

11.1.3 Text Analysis<br />

The text analysis provides a vast number of possible entity types and analysis rules for many industries in 20<br />

languages. However, you do not have to deal with this complexity when analyzing your individual set of<br />

documents. The language modules included with the software contain system dictionaries and provide an<br />

extensive set of predefined entity types. The extraction process can extract entities using these lists of specific<br />

entities. It can also discover new entities using linguistic models. Extraction classifies each extracted entity by<br />

entity type and presents this metadata in a standardized format.<br />

The following data types are enabled for text analysis: NVARCHAR, VARCHAR, and STRING.<br />

The following text analysis options are delivered by <strong>SAP</strong>:<br />

Table 10: Options<br />

Name of Option Description<br />

LINGANALYSIS_BASIC This option provides the following language processing<br />

capabilities for linguistic analysis of unstructured data:<br />

● Segmentation - the separation of input text into its elements<br />

LINGANALYSIS_STEMS This option provides the following language processing<br />

capabilities for linguistic analysis of unstructured data:<br />

● Segmentation - the separation of input text into its elements<br />

● Stemming - the identification of word stems, or dictionary<br />

forms<br />

LINGANALYSIS_FULL This option provides the following language processing<br />

capabilities for linguistic analysis of unstructured data:<br />

● Segmentation - the separation of input text into its elements<br />

● Stemming - the identification of word stems, or dictionary<br />

forms<br />

● Tagging - the labeling of words' parts of speech<br />

EXTRACTION_CORE This option extracts entities of interest from unstructured text,<br />

e.g. people, organizations, places, and other parties described in<br />

the document.<br />

242<br />

P U B L I C<br />

© 2012 <strong>SAP</strong> AG. All rights reserved.<br />

<strong>SAP</strong> <strong>HANA</strong> <strong>Developer</strong> <strong>Guide</strong><br />

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