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MDX uses a multidimensional data model to enable navigation in multiple dimensions, levels, and up and down a hierarchy. With MDX, you can access pre-computed aggregates at specified positions (levels or members) in a hierarchy. Note: MDX is an open standard. However, SAP has developed extensions to MDX that are designed to enable faster and more efficient access to multidimensional data, for example, to serve specific SAP HANA application requirements and to optimize the resultset for SAP HANA clients. MDX is implicitly a hierarchy-based paradigm. All members of all dimensions must belong to a hierarchy. Even if you do not explicitly create hierarchies in your SAP HANA data model, the SAP HANA modeler implicitly generates default hierarchies for each dimension. All identifiers that are used to uniquely identify hierarchies, levels and members in MDX statements (and metadata requests) embed the hierarchy name within the identifier. In SAP HANA, the standard use of MDX is to access SAP HANA models (for example, analytical and attribute views) that have been designed, validated and activated in the modeler in the SAP HANA studio. The studio provides a graphical design environment that enables detailed control over all aspects of the model and its language-context-sensitive runtime representation to users. MDX in SAP HANA uses a runtime cube model, which usually consists of an analytical (or calculation) view that represents data in which dimensions are modeled as attribute views. You can use the analytical view to specify whether a given attribute is intended for display purposes only or for aggregation. The key attributes of attribute views are linked to private attributes in an analytical view in order to connect the entities. One benefit of MDX in SAP HANA is the native support of hierarchies defined for attribute views. Note: MDX in SAP HANA includes native support of hierarchies defined for attribute views. SAP HANA supports level-based and parent-child hierarchies and both types of hierarchies are accessible with MDX. SAP HANA supports the use of variables in MDX queries; the variables are a SAP-specific enhancement to standard MDX syntax. You can specify values for all mandatory variables that are defined in SAP HANA studio to various modeling entities. The following example illustrates how to declare SAP HANA variables and their values: MDX Select From [MINI_C1_VAR] Where [Measures].[M2_1_M3_CONV] SAP VARIABLES [VAR_VAT] including 10, [VAR_K2] including 112, [VAR_TARGET_CURRENCY] including 'EUR', 14.3.3 MDX Functions MDX in SAP HANA supports a variety of standard MDX functions. Table 17: Supported MDX Functions Function Description Aggregate Returns a calculated value using the appropriate aggregate function, based on the aggregation type of the member. Ancestor Returns the ancestor of a member at a specified level or at a specific distance away in the hierarchy. Ancestors Returns a set of all ancestors of a member at a specified level or at a specific distance away in the hierarchy. Ascendants Returns the set of the ascendants of the member. 366 P U B L I C © 2012 SAP AG. All rights reserved. SAP HANA Developer Guide Using Database Client Interfaces
Function Description Avg Returns the average value of a numeric expression evaluated over a set. BottomCount Returns a specified number of items from the bottom of a set, optionally sorting the set first. Children Returns the children of a member. ClosingPeriod Returns the last sibling among the descendants of a member at a specified level. Count Counts the number of members in the tuple. Cousin Returns the child member with the same relative position under a parent member as the specified child member. Crossjoin Returns the cross product of two sets. CurrentMember Returns the current member along a hierarchy. DefaultMember Returns the default member of a hierarchy. Descendants Returns the set of descendants of a member at a specified level or at a specific distance away in the hierarchy. Dimension Returns the hierarchy that contains a specified member or level. Dimensions Returns a hierarchy specified by a numeric or string expression. Distinct Returns a set, removing duplicate tuples from a specified set. DistinctCount Returns the number of distinct tuples in a set. DrillDownLevel Drills down the members of a set one level below the lowest level represented in the set, or to one level below an optional level of a member represented in the set. DrillDownLevelBottom Drills down the members of a specified count of bottom members of a set, at a specified level, to one level below. DrillDownLevelTop Drills down a specified count of top members of a set, at a specified level, to one level below. DrillDownMember Drills down the members in a specified set that are present in a second specified set. DrillDownMemberBottom Drills down the members in a specified set that are present in a second specified set, limiting the result set to a specified number of bottommost members. DrillDownMemberTop Drills down the members in a specified set that are present in a second specified set, limiting the result set to a specified number of topmost members. DrillUpLevel Drills up the members of a set that are below a specified level. DrillUpmember Drills up the members in a specified set that are present in a second specified set. Except Finds the difference between two sets, optionally retaining duplicates. Filter Returns the set resulting from filtering a set based on a search condition. FirstChild Returns the first child of a specified member. FirstSibling Returns the first child of the parent of a specified member. SAP HANA Developer Guide Using Database Client Interfaces P U B L I C © 2012 SAP AG. All rights reserved. 367
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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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object :=['entity'] ( repoobject |
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SAP HANA SQL Type OData EDM Type Se
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An empty service metadata document
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All information about the table, fo
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OData Key Specification The OData s
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As a consequence of the transient n
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The second association is similar t
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"1" dependent "Orders"("CustomerID"
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} parameters via entity; During act
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XMLA Service-Definition Keywords Cu
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Function Description DrillDownLevel
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Function Description PrevMember Ret
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Analytic and calculation views can
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4. Place the valid XMLA service def
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The functions provided by the JavaS
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Cross-site scripting (XSS) ● Prob
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Make sure you have addressed the is
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Server-side JavaScript files have t
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Use the $.import function, as follo
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Note: A SQL connection configuratio
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8. Find the trace matching your app
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The session ID is the value of the
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10 Building UIs with SAPUI5 This se
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2. Specify the name, for example My
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// use alternative bootstrap for t
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11 Enabling Search With a SAP HANA
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Synchronization [page 240] Full tex
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) content SHORTTEXT(100) Changes to
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● Preprocessing ● Preprocessed
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Name of Option Description In most
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Column ID Key Description Data Type
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a) Delete the existing full text in
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Parameter Data Type FUZZY_SEAR CH_I
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Parameter Data Type Default (TEXT)
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The CONTAINS predicate is optional
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Limitations The SNIPPET function ha
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Fuzzy search can be used in various
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Original Letter Standardized Letter
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Option similarCalculationMode The o
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Supported Data Types Fuzzy search w
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option2=value2')) ORDER BY score DE
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Name of Option Short Name maxDateDi
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TEXT and SHORTTEXT TEXT and SHORTTE
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2. Perform the search on two column
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Rule 2 - House Numbers or House Num
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col1 NVARCHAR(20) FUZZY SEARCH MODE
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2. Country codes are standardized t
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Postcode 1 Postcode 2 Score Remarks
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WHERE CONTAINS(postcode, '1234', FU
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PHRASE is similar to AND but restri
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Tokens=input')) ORDER BY score DESC
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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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Page 357 and 358: 1. In a command line, run the follo
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Page 363 and 364: 3. In the Connection tab of the Dat
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Page 373 and 374: 15 SAP HANA Developer References Th
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