Denodo 5.0 Administration Virtual DataPort Administrator Guide
Denodo Virtual DataPort 5.0 Administration is a guide for administrators to manage and configure the Denodo Virtual DataPort 5.0 server. It covers topics such as installation, launching the server, creating views, publishing web services, managing users and access rights, optimizing queries, and monitoring the server.
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Denodo Technologies North America & A PAC: 530 Lytton Avenue, Suite 301. Palo Alto, CA 94301. U SA
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.comUpdate Aug 5th, 2015
DENODO VIRTUAL DATAPORT 5.0 ADMINISTRATION
GUIDE
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.comUpdate Aug 5th, 2015
DENODO VIRTUAL DATAPORT 5.0 ADMINISTRATION
GUIDE
Denodo Technologies North America & A PAC: 530 Lytton Avenue, Suite 301. Palo Alto, CA 94301. U SA
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.comNOTE
This document is confidential and is the property of
Denodo Technologies.
No part of this document may be reproduced in any form
by any means without prior written authorization from
Denodo Technologies.
Copyright 2015 Denodo Technologies, Inc.
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.comNOTE
This document is confidential and is the property of
Denodo Technologies.
No part of this document may be reproduced in any form
by any means without prior written authorization from
Denodo Technologies.
Copyright 2015 Denodo Technologies, Inc.
Virtual DataPort 5.0 Administrator GuideDenodo Technologies North America & A PAC: 530 Lytton Avenue, Suite 301. Palo Alto, CA 94301. U SA
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.com
CONTENTS
PREFACE ...................................................................................................... I
SCOPE ...................................................................................................... I
WHO SHOULD USE THIS DOCUMENT ........................................................ I
SUMMARY OF CONTENTS ......................................................................... I
1 INTRODUCTION .......................................................................... 1
2 GENERAL ARCHITECTURE ........................................................... 2
2.1 PHYSICAL LAYER ........................................................................ 3
2.2 LOGICAL LAYER .......................................................................... 5
2.2.1 Data Module: Cache ....................................................................... 6
2.3 USER LAYER ................................................................................ 6
3 INSTALLATION AND EXECUTION ................................................ 7
3.1 LAUNCHING THE VIRTUAL DATAPORT SERVER ........................... 7
3.2 LAUNCHING THE VIRTUAL DATAPORT ADMINISTRATION TOOL . 7
3.2.1 Documentation and Online Help ....................................................... 9
3.2.2 Main Areas of the Administration Tool ............................................... 9
3.2.3 Tool Preferences ...........................................................................11
3.2.4 Query Monitor ..............................................................................14
3.2.5 Catalog Search .............................................................................15
3.2.6 Invalidate Cache ...........................................................................15
4 CREATING VIEWS ..................................................................... 17
4.1 ACCESS TO THE GRAPHIC ADMINISTRATION TOOL .................. 18
4.2 IMPORTING DATA SOURCES AND CREATING BASE VIEWS ........ 18
4.2.1 Importing JDBC and ODBC Sources .................................................18
4.2.2 SOAP Web Service Sources ............................................................40
4.2.3 Multidimensional Database Sources .................................................50
4.2.4 Path Types in Virtual DataPort ........................................................56
4.2.5 XML Sources ................................................................................68
4.2.6 JSON Sources ...............................................................................71
4.2.7 Web Sources (WWW) ....................................................................73
4.2.8 Delimited File Sources ...................................................................74
4.2.9 Google Search Sources ..................................................................80
4.2.10 Aracne Sources .......................................................................84
4.2.11 LDAP Sources .........................................................................89
4.2.12 BAPI Sources ..........................................................................93
4.2.13 Custom Sources ......................................................................95
4.2.14 Viewing the Schema of a Base View ......................................... 104
4.2.15 Data Source Configuration Properties....................................... 108
4.2.16 Source Refresh ..................................................................... 112
4.2.17 Working with Blob Fields of Base Views .................................... 113
4.2.18 Deleting a Data Source .......................................................... 114
4.3 CREATING DERIVED VIEWS .................................................... 114
4.3.1 Creating Union Views .................................................................. 115
4.3.2 Creating Join Views ..................................................................... 120
4.3.3 Creating Selection Views .............................................................. 125
4.3.4 Creating Flatten Views ................................................................. 131
4.3.5 Creating Intersection Views .......................................................... 134
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.com
CONTENTS
PREFACE ...................................................................................................... I
SCOPE ...................................................................................................... I
WHO SHOULD USE THIS DOCUMENT ........................................................ I
SUMMARY OF CONTENTS ......................................................................... I
1 INTRODUCTION .......................................................................... 1
2 GENERAL ARCHITECTURE ........................................................... 2
2.1 PHYSICAL LAYER ........................................................................ 3
2.2 LOGICAL LAYER .......................................................................... 5
2.2.1 Data Module: Cache ....................................................................... 6
2.3 USER LAYER ................................................................................ 6
3 INSTALLATION AND EXECUTION ................................................ 7
3.1 LAUNCHING THE VIRTUAL DATAPORT SERVER ........................... 7
3.2 LAUNCHING THE VIRTUAL DATAPORT ADMINISTRATION TOOL . 7
3.2.1 Documentation and Online Help ....................................................... 9
3.2.2 Main Areas of the Administration Tool ............................................... 9
3.2.3 Tool Preferences ...........................................................................11
3.2.4 Query Monitor ..............................................................................14
3.2.5 Catalog Search .............................................................................15
3.2.6 Invalidate Cache ...........................................................................15
4 CREATING VIEWS ..................................................................... 17
4.1 ACCESS TO THE GRAPHIC ADMINISTRATION TOOL .................. 18
4.2 IMPORTING DATA SOURCES AND CREATING BASE VIEWS ........ 18
4.2.1 Importing JDBC and ODBC Sources .................................................18
4.2.2 SOAP Web Service Sources ............................................................40
4.2.3 Multidimensional Database Sources .................................................50
4.2.4 Path Types in Virtual DataPort ........................................................56
4.2.5 XML Sources ................................................................................68
4.2.6 JSON Sources ...............................................................................71
4.2.7 Web Sources (WWW) ....................................................................73
4.2.8 Delimited File Sources ...................................................................74
4.2.9 Google Search Sources ..................................................................80
4.2.10 Aracne Sources .......................................................................84
4.2.11 LDAP Sources .........................................................................89
4.2.12 BAPI Sources ..........................................................................93
4.2.13 Custom Sources ......................................................................95
4.2.14 Viewing the Schema of a Base View ......................................... 104
4.2.15 Data Source Configuration Properties....................................... 108
4.2.16 Source Refresh ..................................................................... 112
4.2.17 Working with Blob Fields of Base Views .................................... 113
4.2.18 Deleting a Data Source .......................................................... 114
4.3 CREATING DERIVED VIEWS .................................................... 114
4.3.1 Creating Union Views .................................................................. 115
4.3.2 Creating Join Views ..................................................................... 120
4.3.3 Creating Selection Views .............................................................. 125
4.3.4 Creating Flatten Views ................................................................. 131
4.3.5 Creating Intersection Views .......................................................... 134
Virtual DataPort 5.0 Administrator GuideDenodo Technologies North America & A PAC: 530 Lytton Avenue, Suite 301. Palo Alto, CA 94301. U SA
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.com
4.3.6 Creating Minus Views .................................................................. 136
4.3.7 Creating Interface Views .............................................................. 138
4.3.8 Viewing the Schema of a Derived View .......................................... 140
4.3.9 Tree View .................................................................................. 140
4.3.10 Data Lineage ........................................................................ 141
4.4 MATERIALIZED TABLES........................................................... 142
4.5 TEMPORARY TABLES ............................................................... 143
4.6 QUERYING VIEWS ................................................................... 143
4.6.1 Execution Trace of a Statement .................................................... 146
4.7 EDITING / REPLACING A VIEW ............................................... 151
4.7.1 Views Affected by Modifications .................................................... 152
4.8 ADVANCED CONFIGURATION OF VIEWS ................................. 153
4.8.1 Configuring the Cache of a View ................................................... 154
4.8.2 Memory Usage and Swapping Policy of Views ................................. 157
4.8.3 Internationalization Configuration ................................................. 158
4.8.4 Query Capabilities ....................................................................... 159
4.8.5 View Configuration Properties ....................................................... 162
4.8.6 Indexes of Views ........................................................................ 164
4.8.7 Statistics of the View ................................................................... 166
4.8.8 Editing the Execution Plan ............................................................ 166
4.8.9 Defining the Data Movements of the View ...................................... 169
5 STORED PROCEDURES............................................................. 170
5.1 IMPORTING STORED PROCEDURES ......................................... 170
5.2 EXECUTING STORED PROCEDURES ......................................... 172
5.3 USE OF STORED PROCEDURES IN CREATING VIEWS ............... 173
6 PUBLICATION OF WEB SERVICES ........................................... 175
6.1 PUBLISHING SOAP WEB SERVICES ......................................... 175
6.1.1 Operations Tab ........................................................................... 176
6.1.2 Settings tab ............................................................................... 179
6.1.3 Advanced Tab............................................................................. 182
6.2 PUBLISHING REST WEB SERVICES.......................................... 183
6.2.1 Resources tab ............................................................................ 184
6.2.2 Settings tab ............................................................................... 185
6.2.3 Advanced Tab............................................................................. 189
6.3 XSLT TRANSFORMATIONS ....................................................... 191
6.4 WEB SERVICES AUTHENTICATION .......................................... 191
6.5 CONNECTION FROM THE WEB SERVICES TO THE SERVER ....... 194
6.6 TYPES CONVERSION TABLE FOR REST / SOAP PUBLISHED WEB
SERVICES ........................................................................................... 194
6.7 WEB SERVICE CONTAINER STATUS TABLE .............................. 195
6.8 INVOKING THE EXPORTED WEB SERVICES ............................. 197
7 PUBLICATION OF VIEWS AS WIDGETS ................................... 198
7.1 PUBLISH A VIEW AS A WIDGET .............................................. 198
7.2 AUXILIARY WEB SERVICES ..................................................... 201
7.3 EXPORT TO JSR-168 OR JSR-286 PORTLET ............................. 201
7.4 EXPORT TO OPENAJAX WIDGET .............................................. 204
7.5 DEPLOYMENT OF AN OPENAJAX WIDGET ................................ 205
7.6 EXPORT AS MICROSOFT WEB PART ......................................... 212
Denodo Technologies Iberia & LatinoAmérica: C/ Montalbán, 5. 28014 Madrid. S PAIN
Denodo Technologies EMEA: 17th Floo r, Portland House, Bressenden Place, London SW1E 5R S. UK www.denod o.com
4.3.6 Creating Minus Views .................................................................. 136
4.3.7 Creating Interface Views .............................................................. 138
4.3.8 Viewing the Schema of a Derived View .......................................... 140
4.3.9 Tree View .................................................................................. 140
4.3.10 Data Lineage ........................................................................ 141
4.4 MATERIALIZED TABLES........................................................... 142
4.5 TEMPORARY TABLES ............................................................... 143
4.6 QUERYING VIEWS ................................................................... 143
4.6.1 Execution Trace of a Statement .................................................... 146
4.7 EDITING / REPLACING A VIEW ............................................... 151
4.7.1 Views Affected by Modifications .................................................... 152
4.8 ADVANCED CONFIGURATION OF VIEWS ................................. 153
4.8.1 Configuring the Cache of a View ................................................... 154
4.8.2 Memory Usage and Swapping Policy of Views ................................. 157
4.8.3 Internationalization Configuration ................................................. 158
4.8.4 Query Capabilities ....................................................................... 159
4.8.5 View Configuration Properties ....................................................... 162
4.8.6 Indexes of Views ........................................................................ 164
4.8.7 Statistics of the View ................................................................... 166
4.8.8 Editing the Execution Plan ............................................................ 166
4.8.9 Defining the Data Movements of the View ...................................... 169
5 STORED PROCEDURES............................................................. 170
5.1 IMPORTING STORED PROCEDURES ......................................... 170
5.2 EXECUTING STORED PROCEDURES ......................................... 172
5.3 USE OF STORED PROCEDURES IN CREATING VIEWS ............... 173
6 PUBLICATION OF WEB SERVICES ........................................... 175
6.1 PUBLISHING SOAP WEB SERVICES ......................................... 175
6.1.1 Operations Tab ........................................................................... 176
6.1.2 Settings tab ............................................................................... 179
6.1.3 Advanced Tab............................................................................. 182
6.2 PUBLISHING REST WEB SERVICES.......................................... 183
6.2.1 Resources tab ............................................................................ 184
6.2.2 Settings tab ............................................................................... 185
6.2.3 Advanced Tab............................................................................. 189
6.3 XSLT TRANSFORMATIONS ....................................................... 191
6.4 WEB SERVICES AUTHENTICATION .......................................... 191
6.5 CONNECTION FROM THE WEB SERVICES TO THE SERVER ....... 194
6.6 TYPES CONVERSION TABLE FOR REST / SOAP PUBLISHED WEB
SERVICES ........................................................................................... 194
6.7 WEB SERVICE CONTAINER STATUS TABLE .............................. 195
6.8 INVOKING THE EXPORTED WEB SERVICES ............................. 197
7 PUBLICATION OF VIEWS AS WIDGETS ................................... 198
7.1 PUBLISH A VIEW AS A WIDGET .............................................. 198
7.2 AUXILIARY WEB SERVICES ..................................................... 201
7.3 EXPORT TO JSR-168 OR JSR-286 PORTLET ............................. 201
7.4 EXPORT TO OPENAJAX WIDGET .............................................. 204
7.5 DEPLOYMENT OF AN OPENAJAX WIDGET ................................ 205
7.6 EXPORT AS MICROSOFT WEB PART ......................................... 212
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Key Features
- Server Administration
- View Creation
- Web Service Publication
- User & Access Management
- Query Optimization
- Server Monitoring
Questions & Answers
2024-07-02
X X T
What does the "enough rows retrieved" message mean?
This message indicates that your query successfully retrieved the necessary data. It's not an error; it signals query completion.
Why am I receiving the "enough rows retrieved" message when expecting more results?
The reason could be an incorrectly written query, misconfigured data sources, or the absence of the expected data in the sources.
2024-02-13
G G G
What status values can be observed in a query's execution trace?
Query execution traces can show the following statuses: INIT (query started, but no processing), PROCESSING (node actively processing), STOPPED (user cancelled), OK (successful completion), ERROR (execution error), THREAD_TIMEOUT (thread pool timeout), TOO_MANY_WORKS_TIMEOUT (reached maximum threads).
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Frequently Answers and Questions
What are the key features of Denodo Virtual DataPort 5.0?
Key features include server administration, view creation, web service publication, user and access management, query optimization, and server monitoring.
How do I install Denodo Virtual DataPort 5.0?
Installation steps and instructions are outlined in the "Installation and Execution" section of the guide.
What is the purpose of creating views in Denodo Virtual DataPort?
Views are virtual representations of data from multiple sources, providing a unified view for querying and data access.
How do I publish web services using Denodo Virtual DataPort 5.0?
The guide provides comprehensive details on publishing SOAP and REST web services, including configuration steps and examples.
How do I manage users and access rights to Denodo Virtual DataPort?
The "Databases, Users and Access Rights in Virtual DataPort" section covers creating databases, adding users, defining roles, and assigning access rights.
How can I optimize queries in Denodo Virtual DataPort 5.0?
The "Optimizing Queries" section provides techniques for optimizing query performance, including data source optimization, join operation optimization, and cost-based optimization.
How do I monitor the Denodo Virtual DataPort 5.0 server?
The guide describes server monitoring using the Java Management Extensions (JMX) agent and the Denodo Monitor. It provides insights into server performance, cache usage, and other important metrics.
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