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A full text index is an additional data structure that is created to enable text search features on a specific column in a table. Conceptually, full text indexes support searching on columns in the same way that indexes support searching through books. To create a full text index, proceed as follows: 1. Determine the columns for which you require an index. 2. Use the CREATE FULLTEXT INDEX statement to create an index with the specified index name. CREATE FULLTEXT INDEX ON '(' ')' [] 3. Specify any of the following additional parameters for the full text index: LANGUAGE COLUMN LANGUAGE DETECTION '(' ')' MIME TYPE COLUMN FUZZY SEARCH INDEX PHRASE INDEX RATIO CONFIGURATION SEARCH ONLY FAST PREPROCESS FUZZY SEARCH INDEX TEXT ANALYSIS SYNC |ASYNC |ASYNC FLUSH [QUEUE] EVERY n MINUTES |ASYNC FLUSH [QUEUE] AFTER n DOCUMENTS |ASYNC FLUSH [QUEUE] EVERY n MINUTES OR AFTER m DOCUMENTS If you do not specify any parameters, the default values are used. The system creates a separate hidden full text index column for each source column that you have specified. You can now create queries to search those columns. You can check the parameters of an existing full text index by using the SYS.FULLTEXT_INDEXES monitoring view. Related Links You want to create a full text index i1 for table A, column C, with the following characteristics: ● Synchronous processing ● Fuzzy search index disabled ● Languages for language detection: English, German, and South Korean To create the index, you use the following syntax: CREATE FULLTEXT INDEX i1 ON A(C) FUZZY SEARCH INDEX OFF SYNC LANGUAGE DETECTION ('EN','DE','KR') Full Text Index Types [page 237] SAP HANA automatically creates full text indexes for columns of type TEXT and SHORTTEXT(n). For other column types, you must manually create any required full text indexes. 236 P U B L I C © 2012 SAP AG. All rights reserved. SAP HANA Developer Guide Enabling Search
Synchronization [page 240] Full text indexes in a SAP HANA database must be created and updated in synchronization with the corresponding columns. This synchronization can be either synchronous or asynchronous. Full Text Index Parameters [page 247] The content and behavior of a full text index is configured by the use of both default and user-specified parameters. To view the configuration of a full text index, you use the SYS.FULLTEXT_INDEXES view. 11.1.1 Full Text Index Types SAP HANA automatically creates full text indexes for columns of type TEXT and SHORTTEXT(n). For other column types, you must manually create any required full text indexes. Characteristic TEXT SHORTTEXT (n) Manually Created SQL data type exposed to user Data returned by SELECT Original data (returns normalized data if the SEARCH_ONLY parameter is ON) NCLOB NVARCHAR(n) Original data type Original data Original data SQL insertion mode SYNC SYNC SYNC or ASYNC Drop index Yes (via drop column) Yes (via drop column) Yes Text search via CONTAINS Yes Yes Yes SQL string search Not possible Possible Depends on underlying data type Change parameters of full text index Partially Partially All (with rebuild) Rebuild index No No Yes Base type can be changed No No No (no dependency between base-column and index available) TEXT Indexes In a SAP HANA database, when you create a table that contains large text documents, you can define the columns with the TEXT data type. This data type allows you to query large text documents and present content excerpts in search hit lists. You can also reconstruct the document and display it in its original formatting. When you create a TEXT column and insert content, SAP HANA extracts and processes the text from the original document and then automatically generates a full text index for the column. To create this full text index, SAP HANA replaces the original data in the column with the processed text. This text is then returned with the data type NCLOB. The original data is no longer available. If you insert new entries in the TEXT column, the full text index is automatically and synchronously updated. CREATE COLUMN TABLE ( k int primary key, content TEXT SAP HANA Developer Guide Enabling Search FAST PREPROCESS OFF PHRASE INDEX RATIO P U B L I C © 2012 SAP AG. All rights reserved. 237
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SAP HANA Appliance Software SPS 05
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4.3.1 SAP HANA Repository Packages
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6.5.12 Searching Tables, Models and
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12.2 Authentication Overview. .....
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2 SAP HANA SAP HANA is an in-memory
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With a scanning speed of several gi
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SAP HANA greatly extends the tradit
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2.4 Refactoring SAP HANA Based Appl
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In either case, as a developer you
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For this scenario, you may need to
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Object Description File Extension M
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Committing the file saves it in the
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● Security: Contains the roles an
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The view essentially is a list of r
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Action Description ● Creates a ne
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● Debug Session: The debug sessio
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○ MODELING ○ CONTENT_ADMIN 3.5.
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4.1 Setting up Delivery Units A del
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Related Links ○ In the text boxes
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4.2.2 Creating a Repository Workspa
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3. Open the Project Explorer view.
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1. Create a package Packages are ne
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● Non-Structural Package contains
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In the New Package dialog, enter in
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Maintaining Translation Details [pa
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Note: Exposed package content can i
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Application-Access File Keyword Opt
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Note: You can disable authenticatio
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| |---2011... |---subpackage1 | |--
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You use the mime_mapping keyword to
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1. If you have not already done so,
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2. Select Open Development. The def
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3. Select Next. 4. Enter a user nam
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In the SAP HANA Repositories view,
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Since you only have one workspace,
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6. Add a file called .xsaccess (no
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SAP HANA Developer Guide Setting Up
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5.1 Schema Relational databases con
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creation, but can have any number o
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If you want to define a transportab
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ool public(default=true); optional
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5.9.1 Table-Import Model The table-
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○ The key area of the input value
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{name = "Forename"; sqlType = VARCH
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var pstatement1 = conn.prepareState
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Note: The following example is for
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You can perform the following tasks
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Requirement Preference Substeps Not
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a) Log on to the Central Management
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4. In the Target System section, se
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Remember: Schema mapping only appli
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) Select the required granularity c
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● Hierarchies Note: In the Semant
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Restriction: It is not allowed to a
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Related Links ● When you open an
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○ Select the Data Foundation node
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a) In the Output panel of the Logic
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Related Links Note: If an active ve
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Note: Definer's right: If you want
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Optional Step: Creating Calculated
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4. Choose OK. Activate Note: 1. If
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a. To map the source to the target
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a. Enter a name and description. b.
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example, to calculate Discount for
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○ Name Path - the unique node ID
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specifying target currency and dese
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● In the Activate dialog, you can
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Note: You can also create a join be
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● You can choose to create parame
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● A decision table is based on in
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Objects in edit mode in other works
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shown. You can apply a filter for p
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Type Description Calculation View G
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3. From the context menu, choose Da
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Function Syntax Purpose hextoraw st
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Function Syntax Purpose daysbetween
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6.5.13 Setting Keyboard Shortcuts Y
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case, the name of calculation view
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The generated information models an
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● CALL: Calls a procedure. For ex
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7.2 Debugging SQLScript The SAP HAN
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Invoker's right: If you want the sy
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The main aim of OData is to define
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The OData specification requires an
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Entity Sets This construct allows y
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● Sample JSON Output: Single Prop
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$count This request allows you to r
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● Sample ATOM and JSON Output: SA
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● Sample JSON Output: $orderby Th
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● Sample JSON Output: $top This o
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.xsodata//$inlinecount=allpages ●
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8.1.4 OData Security Considerations
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Page 223 and 224: Note: A SQL connection configuratio
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Page 227 and 228: The session ID is the value of the
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Page 239 and 240: ) content SHORTTEXT(100) Changes to
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Page 243 and 244: Name of Option Description In most
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Page 255 and 256: Limitations The SNIPPET function ha
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Page 265 and 266: option2=value2')) ORDER BY score DE
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Page 279 and 280: Postcode 1 Postcode 2 Score Remarks
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)) ORDER BY score DESC, id; SCORE I
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Option textSearch The textSearch op
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Fuzzy Search with Stopwords Usage S
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Stopword Example CREATE COLUMN TABL
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Stopword ltd The stopwords will not
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Column Name Type Primary Key Descri
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Only one of these errors is allowed
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2000-01-11 -> 0.96 2000-01-12 -> 0.
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This deletes the node and all its c
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Hofmann -- specifies the input valu
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SCORE ID COMPANYNAME 0.88 6 xabc 0.
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advanced customizing and layout of
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Example: http://hana1.acme.corp:800
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Along with the full text index, you
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11.3.7 Defining the Page Layout Now
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switchbox Parameter Name Default Va
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11.3.9 Defining the Layout of Resul
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12.2 Authentication Overview Authen
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Secondly, roles created as design-t
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Caution: Theoretically, a user with
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Example: role :: { catalog schema "
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12.4 Privileges SAP HANA offers var
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Authorization to update or delete n
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● Activity ● Validity ● Attri
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The SAP HANA modeler automatically
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Runtime Authorization Check of Anal
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Implications of Creating Analytic P
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Now when a database user requests a
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If you create restrictions on colum
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12.4.6 Granting Privileges to Users
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The location of the application-des
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For example, you need to plan, mana
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13.4 Importing Delivery Units Impor
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4. Download translated text to the
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14 Using Database Client Interfaces
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1. In a command line, run the follo
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The port should be 315, for example
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The first column shows the field na
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3. In the Connection tab of the Dat
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SAP HANA supports the following Mic
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Function Description Avg Returns th
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Function Description MembersAscenda
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○ MEMBERS_AND_ASCENDANTS ○ MEMB
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15 SAP HANA Developer References Th
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