26 September, 2020
Pentaho Reporting is a suite of open-source reporting tools that allows you to create relational and analytical reports from a wide range of data sources. The Pentaho Reporting Engine is able to create PDF, Excel, HTML, Text, Rich-Text-File, and XML and CSV outputs of your data. Our OpenFormula/Excel-formula expressions help you to create more dynamic reports exactly the way you want them. Our open architecture and our powerful API and extension points make sure this system can grow with your requirements.
The Pentaho Report Designer (PRD) and the Pentaho Report Design Wizard (RDW) are used to creating report definitions in a graphical editor. The Pentaho Report Designer can additionally be used as a powerful desktop reporting application.
The created report definitions are executed by the Pentaho Reporting Engine (PRE). The Reporting Engine is a lightweight Java reporting library with a minimal overall footprint, which can be embedded in other Java Desktop or Server applications. The reporting engine drives both the Pentaho Report Designer and the Pentaho BI-Server, a Business Intelligence web-application used to publish reports and other content over the web.
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As with many systems, there is no such thing as a “best” configuration. The actual minimum requirement depends on how large the processed reports will be and how many reports are executed at the same time. The performance of the report processing is governed by how fast the database or data-source can deliver the data, how powerful the CPU is, and how much memory is available for caches and buffers.
A single report processing run will consume one CPU. Leave some extra resources for doing other tasks of the operating system or application and a dual-core or hyper-threaded CPU will be perfect for all desktop reporting scenarios. For server-side scenarios, the ideal system contains a CPU-core for each additional concurrently run report.
The amount of memory needed for the report processing depends largely on the size of the report and the desired export format. Some export types have to keep all the generated content in memory for the time of the report processing and thus have a larger footprint. In general, for reasonably sized reports of no more than 2000 pages, 256MB should be more than enough. Add 128MB for each additional concurrent user. If you intend to export reports resulting in even larger documents, you may have to add extra memory or tune the report-configuration to activate additional features to reduce the memory usage at the expense of processing speed.
Pentaho Reporting supports both Relational (Banded) and Analytical/Cross-tab Reports (when using OLAP data-sources).
Pentaho Reporting supports virtually unlimited subreports, which can be nested in any depth. Subreports can define their own data-sources, are able to receive parameters from the parent reports, and thus allows you to create reports across different source systems.
A report-wizard helps to kick-start new reports by generating all required fields and groups in four simple steps. You can easily create new wizard-templates from within the report-designer.
The following data sources are supported by the Pentaho Reporting Engine:
-Relational Databases with JDBC and ODBC drivers
-XML files via XPath queries
-OLAP data sources
-native access to Pentaho Analysis/Mondrian
-XML/A and other third party OLAP databases with OLAP4J
-Manually defined data tables
-Inline ETL and access to Web-Services via Pentaho Data-Integration/Kettle
Querying existing Java-Code via Reflection/Method Invocation
Accessing business views defined in the Pentaho Metadata System
Pentaho Reporting can export reports into all major document types:
-XML (via API)
And last but not least, you can also print your reports on Paper with Pentaho Reporting, if you prefer non-electronic delivery.
-Label, Message-Fields, Number- and Date-Fields
-Internationalized Reports via Resource-Field, Resource-Label, and Resource-Message elements
-Static and Dynamic Images (PNG, JPEG, GIF, WMF, SVG)
-Barcodes: Code128, Code128A, Code128B, Code128C, UCC128, EAN128, EAN13, Bookland, UPC-A, Standard 2 of 5, Interleave 2 of 5, PDF417, Code 39, Codabar, PostNet
-Sparklines: Bar-Spark, Line-Spark, Pie-Spark
-Charts: Bar, Line, Area, Pie, Multi-Pie, Bar-Line, Ring, Bubble-Chart, Scatter Plot Chart, Radar, Waterfall
-Provides a simple API to create new element types
Sometimes statically defined reports are not enough. Power users need power tools. The unmatched flexibility of the Pentaho reporting engine allows you to tweak virtually every property of the report definition. It is powerful enough to build an Ad Hoc reporting solution with the customization features of the reporting engine itself.
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