Microsoft SQL Server 2008 Reporting Services (SSRS) introduces many new features and enhancements that increase the reporting capabilities of people who develop reporting solutions. New features and enhancements on all SSRS level:
Report Authoring
Introduce tablix, chart, and gauge data regions. It also introduces support for richly formatted text, new data source types, and Report Builder 2.0, which offers many new features, like enhanced data layout and visualization, in an Office-like authoring environment. Finally, this topic describes incremental changes to authoring tools and the Report Definition Language (RDL) that allow a report author to take full advantage of new processing features.
1. New and Enhanced Data source type:
Included in SQL Server 2008 Reporting Services (SSRS) are new data processing extensions that enable you to report from the Teradata data source.
2. Enhanced Chart Data Region:
The new Chart data region supports a richer set of data visualization features. The new chart types include bar/column cylinder, pyramid, funnel, polar, radar, stock, candlestick, range column, range bar, smooth area, smooth line, stepped line, and box plot chart types. There is also built-in support for Pareto and Histogram charts.
A series can be displayed on any specified chart area and in any specified legend. You can insert empty points in place of missing data. You can combine multiple chart areas, multiple legends, and multiple titles on the same chart.
There is new support for secondary axes, which enable you to display multiple series using more than one axis. On each axis, you can set options to add scale breaks, logarithmic scales, custom axis intervals, and interlaced strip lines.
The new Chart data region supports automatic interval labeling to avoid label collisions, customizable rotation angles, font size and text-wrap properties for axis label calculations, support for axis crossing at custom positions, and support for background strip lines at regular or custom intervals.
You have more control to label, align and color your chart. Smart labels for data points adjust text to avoid label collisions. Custom color palettes and automatic alignment of multiple chart areas make it easier to improve the appearance and layout of charts in your report. You can collect small slices on a pie chart into one slice, drill down or show ToolTip information on individual data points, and place stacked bars or columns side-by-side in any number of stacks. The pie, doughnut, bar, and column charts support 2D and 3D drawing effects.
New design and run-time support for automatically calculated series on the chart are introduced in this release. Reporting Services provides built-in functions for 15 commonly used calculations, including statistical analysis, moving averages, and financial indicators. You can select a formula to create a new series of data points that is calculated at run time.
The user interface has been enhanced to make it easier to work with chart types. There are new dialog boxes for each chart element, shortcut menus for each chart element, support for text editing directly on the chart for titles and labels, a new chart type selector, and the ability to drag, drop, and rearrange fields in the drop-zone of a chart. This enables you to easily change the order in which series appear on a chart.
3. New Gauge Data Region:
The new Gauge data region is most often used to provide a high-level summary of your data by highlighting key performance indicator (KPI) values. The gauge uses a pointer to show a single value. You can add a range to highlight a subset of values on your scale and control the size and positioning of the scale on the gauge to create different visual effects.
The Gauge data region is a gauge panel that contains one more or gauges. You can combine multiple gauges into a gauge panel to show single values side by side. You can apply filtering or sorting on the gauge panel. You can choose between radial and linear gauge types. There is a specific thermometer gauge type to visualize temperature data. You can select a bullet graph from the list of linear gauges.
4. New Tablix Data Region:
The new Tablix data region is a generalized data region item that combines features of both a table and a matrix. In SQL Server 2008 Reporting Services (SSRS), the Tablix data region replaces the Table, Matrix, and List data regions by combining their features into one flexible grid layout. In RDL syntax, the Tablix element replaces the Table, Matrix, and List elements from previous RDL schemas.
The Tablix data region improves report layout flexibility and provides a more consistent rendering behavior. It uses a flexible grid layout to support multiple row groups and column groups. Groups are organized on a row hierarchy and a column hierarchy. Groups can be nested, adjacent, or recursive. After you add a Tablix data region, you can use the Grouping pane to quickly and easily create row and column groups, and add totals, subtotals, and grand totals. The Tablix data region automatically adjusts to include rows and columns on which to display group and summary data.
Tablix opens up new possibilities for working with complex and aggregated data, but does not prevent you from working with simple table and matrix structures. Report Designer provides three templates for the Tablix data region: Table, Matrix, and List, which you can drag from the Toolbox and use as a starting point for your reports. From here, you can design complex reports that integrate features of the various report types. In a tablix cell, you can embed any report item, including another data region.
5. New Enhancements for Text and HTML:
The text box report item has been enhanced. You can mix fonts and colors, add bold and italic styles, and use paragraph styles such as alignment and hanging indents. You can format an entire text box or you can format specific text, numbers, expressions, or fields within the text box. You can also import basic HTML from a field in your database for display in the report. You can create mail merges or template reports that mix data from a database with literal text on the design surface. The new release also provides full support for international complex scripts.
Report authors who use expressions in their reports will notice that simple expressions appear on the design surface as placeholder text. For example, in a text box on the design surface, the expression =Fields!Sales.Value is displayed as [Sales].
6. Enhancements In Report Designer:
The most noticeable change to the Report Designer work area is that the Data tab in Report Designer has been replaced with a Report Data pane that organizes all report data into one place that is always visible as you create the report layout. The Report Data pane shows you data sources, datasets, parameters, images, and built-in fields. Query designers can be accessed from the dataset.
The design surface supports a richer designer experience. Rulers show the current report item position and visible snap lines while you drag and resize items.
Other changes include a new Grouping pane that provides a convenient way to create groups for a Tablix data region, and new property dialog boxes to set properties for report items.
7. Report Builder 2.0:
The new release of Microsoft SQL Server 2008 Report Builder 2.0 offers many new features, like enhanced data layout, visualization and text formatting, and on-demand rendering. Report Builder 2.0 leverages your experience with Office 2007 products by featuring an Office-like authoring environment. You can create reports with multiple data regions, pull data from multiple data sources into a single report, and directly query relational and multidimensional data sources.
You can customize and update all existing reports, regardless of whether they were designed in Report Designer or in the previous version of the tool, Report Builder 1.0, which was installed with SQL Server 2005. Report Builder 1.0 will continue to be installed with Microsoft SQL Server 2008.
You can install the new Report Builder 2.0 separately from the Web. This version of Report Builder 2.0 is a stand-alone version that you or your administrator installs directly on your computer.
SQL Server 2008 PCU1 provides a ClickOnce version of Report Builder 2.0. The ClickOnce version can be used with Reporting Services in native mode or SharePoint integrated mode. You can start Report Builder ClickOnce from Report Manager or a SharePoint library.
8. New and Enhanced Report Items and RDL Schema:
Report Definition Language (RDL) defines the syntax for a Reporting Services report. In this release, major changes to RDL include the addition of Tablix, Chart, and Gauge data regions, which are described in the previous section. However this release also includes incremental enhancements to support the new report processing model and the new report rendering model.
RDL Page Elements
RDL page elements have been redesigned to provide more consistent control over page breaks when you export a report to different renderers. New RDL elements include PageSections, PageSection, and PageBreak. Page headers and footers, page margins, columns, column spacing, the InteractiveHeight element and the InteractiveWidth element have moved from the Report parent element to the Page parent element. New support for KeepTogether and KeepWithGroup has been introduced to support better control over pagination.
Explicit Null Values
The new attribute xsi:nil="true" enables you to distinguish between an element that is explicitly null instead of one that is not specified.
Processing-time Variables
You can declare variables that are global throughout the report or local to particular group scopes. You can use a global variable to calculate an expression one time, and then use that value in expressions throughout the report. The DeferVariableEvaluation element controls whether a variable is evaluated during on-demand processing of the report. Do not set this value if the variable has a time-dependency.
Data type for constants
The Value element has an optional DataType attribute that specifies the data type of the value if it is a constant. If DataType is omitted, a constant uses the String data type. DataType can be Boolean, DateTime, Integer, Float, or String.
Following topics I’ll cover in next article:
• Report Processing and Rendering
• Server Architecture and Tools
• Report Programmability
Thanks,
Krishan
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