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Data types represent different kinds of data so that it can be stored and processed efficiently. Typical data types include text (also known as strings), numbers with and without decimal places, dates and times, and images. Values in a report must be an Report Definition Language (RDL) data type. You can format a value according to your preference when you display it in a report. For example, a field that represents currency is stored in the report definition as a floating point number, but can be displayed in a variety of formats depending on the format property you choose.
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For more information about display formats, see Formatting Report Items (Report Builder and SSRS).
Note
You can create and modify paginated report definition (.rdl) files in Report Builder and in Report Designer in SQL Server Data Tools. Each authoring environment provides different ways to create, open, and save reports and related items.
Report Definition Language (RDL) Data Types and Common Language Runtime (CLR) Data Types
Values that are specified in an RDL file must be an RDL data type. When the report is compiled and processed, RDL data types are converted to CLR data types. The following table displays the conversion, which is marked Default:
RDL Type | CLR Types |
---|---|
String | Default: String Chart, GUID, Timespan |
Boolean | Default: Boolean |
Integer | Default: Int64 Int16, Int32, Uint16, Uint64, Byte, Sbyte |
DateTime | Default: DateTime DateTimeOffset |
Float | Default: Double Single, Decimal |
Binary | Default: Byte[] |
Variant | Any of the above except Byte[] |
VariantArray | Array of Variant |
Serializable | Variant or types marked with Serializable or that implement ISerializable. |
Understanding Data Types and Writing Expressions
It is important to understand data types when you write expressions to compare or combine values, for example, when you define group or filter expressions, or calculate aggregates. Comparisons and calculations are valid only between items of the same data type. If the data types do not match, you must explicitly convert the data type in the report item by using an expression.
The following list describes cases when you may need to convert data to a different data type:
- Comparing the value of a report parameter of one data type to a dataset field of a different data type.
- Writing filter expressions that compare values of different data types.
- Writing sort expressions that combine fields of different data types.
- Writing group expressions that combine fields of different data types.
- Converting a value retrieved from the data source from one data type to a different data type.
Determining the Data Type of Report Data
To determine the data type of a report item, you can write an expression that returns its data type. For example, to show the data type for the field
MyField
, add the following expression to a table cell: =Fields!MyField.Value.GetType().ToString()
. The result displays the CLR data type used to represent MyField
, for example, System.String or System.DateTime.Converting Dataset Fields to a Different Data Type
You can also convert dataset fields before you use them in a report. The following list describes ways that you can convert an existing dataset field:
- Modify the dataset query to add a new query field with the converted data. For relational or multidimensional data sources, this uses data source resources to perform the conversion.
- Create a calculated field based on an existing report dataset field by writing an expression that converts all the data in one result set column to a new column with a different data type. For example, the following expression converts the field Year from an integer value to a string value:
=CStr(Fields!Year.Value)
. For more information, see Add, Edit, Refresh Fields in the Report Data Pane (Report Builder and SSRS). - Check whether the data processing extension you are using includes metadata for retrieving preformatted data. For example, a SQL Server Analysis Services MDX query includes a FORMATTED_VALUE extended property for cube values that have already been formatted when processing the cube. For more information, see Extended Field Properties for an Analysis Services Database (SSRS).
Understanding Parameter Data Types
Report parameters must be one of five data types: Boolean, DateTime, Integer, Float, or Text (also known as String). When a dataset query includes query parameters, report parameters are automatically created and linked to the query parameters. The default data type for a report parameter is String. To change the default data type of a report parameter, select the correct value from the Data type drop-down list on the General page of the Report Parameter Properties dialog box.
Note
Report parameters that are DateTime data types do not support milliseconds. Although you can create a parameter based on values that include milliseconds, you cannot select a value from an available values drop-down list that includes Date or Time values that include milliseconds.
Writing Expressions that Convert Data Types or Extract Parts of Data
When you combine text and dataset fields using the concatenation operator (&), the common language runtime (CLR) generally provides default formats. When you need to explicitly convert a dataset field or parameter to a specific data type, you must use a CLR method or a Visual Basic runtime library function to convert the data.
The following table shows examples of converting data types.
Type of conversion | Example |
---|---|
DateTime to String | =CStr(Fields!Date.Value) |
String to DateTime | =DateTime.Parse(Fields!DateTimeinStringFormat.Value) |
String to DateTimeOffset | =DateTimeOffset.Parse(Fields!DateTimeOffsetinStringFormat.Value) |
Extracting the Year | =Year(Fields!TimeinStringFormat.Value) -- or -- =Year(Fields!TimeinDateTimeFormat.Value) |
Boolean to Integer | =CInt(Parameters!BooleanField.Value) -1 is True and 0 is False. |
Boolean to Integer | =System.Convert.ToInt32(Fields!BooleanFormat.Value) 1 is True and 0 is False. |
Just the DateTime part of a DateTimeOffset value | =Fields!MyDatetimeOffset.Value.DateTime |
Just the Offset part of a DateTimeOffset value | =Fields!MyDatetimeOffset.Value.Offset |
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You can also use the Format function to control the display format for value. For more information, see Functions (Visual Basic).
Advanced Examples
When you connect to a data source with a data provider that does not provide conversion support for all the data types on the data source, the default data type for unsupported data source types is String. The following examples provide solutions to specific data types that are returned as a string.
Concatenating a String and a CLR DateTimeOffset Data Type
For most data types, the CLR provides default conversions so that you can concatenate values that are different data types into one string by using the & operator. For example, the following expression concatenates the text 'The date and time are: ' with a dataset field StartDate, which is a DateTime value:
='The date and time are: ' & Fields!StartDate.Value
.For some data types, you may need to include the ToString function. For example, the following expression shows the same example using the CLR data type DateTimeOffset, which include the date, the time, and a time-zone offset relative to the UTC time zone:
='The time is: ' & Fields!StartDate.Value.ToString()
.Converting a String Data Type to a CLR DateTime Data Type
If a data processing extension does not support all data types defined on a data source, the data may be retrieved as text. For example, a datetimeoffset(7) data type value may be retrieved as a String data type. In Perth, Australia, the string value for July 1, 2008, at 6:05:07.9999999 A.M. would resemble:
2008-07-01 06:05:07.9999999 +08:00
This example shows the date (July 1, 2008), followed by the time to a 7-digit precision (6:05:07.9999999 A.M.), followed by a UTC time zone offset in hours and minutes (plus 8 hours, 0 minutes). For the following examples, this value has been placed in a String field called
MyDateTime.Value
.You can use one of the following strategies to convert this data to one or more CLR values:
- In a text box, use an expression to extract parts of the string. For example:
- The following expression extracts just the hour part of the UTC time zone offset and converts it to minutes:
=CInt(Fields!MyDateTime.Value.Substring(Fields!MyDateTime.Value.Length-5,2)) * 60
The result is480
. - The following expression converts the string to a date and time value:
=DateTime.Parse(Fields!MyDateTime.Value)
If theMyDateTime.Value
string has a UTC offset, theDateTime.Parse
function first adjusts for the UTC offset (7 A.M. - [+08:00
] to the UTC time of 11 P.M. the night before). TheDateTime.Parse
function then applies the local report server UTC offset and, if necessary, adjusts the time again for Daylight Saving Time. For example, in Redmond, Washington, the local time offset adjusted for Daylight Saving Time is[-07:00]
, or 7 hours earlier than 11 PM. The result is the following DateTime value:2007-07-06 04:07:07 PM
(July 6, 2007 at 4:07 P.M).
For more information about converting strings to DateTime data types, see Parsing Date and Time Strings, Formatting Date and Time for a Specific Culture, and Choosing Between DateTime, DateTimeOffset, and TimeZoneInfo on MSDN.
- Add a new calculated field to the report dataset that uses an expression to extract parts of the string. For more information, see Add, Edit, Refresh Fields in the Report Data Pane (Report Builder and SSRS).
- Change the report dataset query to use Transact-SQL functions to extract the date and time values independently to create separate columns. The following example shows how to use the function DatePart to add a column for the year and a column for the UTC time zone converted to minutes:
SELECT
MyDateTime,
DATEPART(year, MyDateTime) AS Year,
DATEPART(tz, MyDateTime) AS OffsetinMinutes
FROM MyDates
The result set has three columns. The first column is the date and time, the second column is the year, and the third column is the UTC offset in minutes. The following row shows example data:2008-07-01 06:05:07 2008 480
For more information about SQL Server database data types, see Data Types (Transact-SQL), and Date and Time Data Types and Functions (Transact-SQL).
For more information about SQL Server Analysis Services data types, see Data Types in Analysis Services.
See Also
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The purpose of this page is to clarify the understanding of the Analysis for Office prompt engine
Overview
When you are using Analysis for Office with a prompt (prompts are defined as variables in BEx Query Designer.), you can use for one data source or for more than one, with the possibility to merge variable. You also have an option to refresh the entire workbook or a specific data source.
The prompting dialog appears automatically when you insert the query with variables in a worksheet. You can open the prompting dialog manually with the prompting icon in the menu to change variable values.
To define prompt values you need to follow the steps below:
1. Open the Prompts dialog.
In the Prompts Summary area, you see a list of all available prompts in the query and the selected values. In the Specify Value for Prompts area, you can expand single prompts to define values. The mandatory prompts are marked with an asterisk. If default values for the prompts are defined in BEx Query Designer, they are displayed as selected in the prompting dialog.
2. In the Display list box, select whether all prompts, no prompts or only the mandatory prompts are expanded in the Specify Value for Prompts area:
- Select Hide All if all prompts should be displayed collapsed.
- Select Show All if all prompts should be displayed expanded. This is the default option.
- Select Hide Optional Prompts if only the mandatory prompts should be displayed expanded.
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3. Define values for the expanded prompts.
You can define values for the following prompt types. Depending on the prompt definition in BEx Query Designer, you have various options:
Prompt Type | Value Definition |
---|---|
Dimension* | Single value You can select one member as the prompt value for this dimension. |
Dimension* | Multiple value You can select multiple members as the prompt values for this dimension. Press the + button, to add a field for additional values. Press the Filter button if you want to select multiple values in a list at once. To remove a selected member, press the red X button |
Dimension* | Value range You can select a start and an end member to define a range of values for this dimension. |
Dimension* | Selection option You can select an operator and corresponding members to define a selection for this dimension. The following operators are available:
You can add multiple selections for this dimension. Press the + button, to add a selection. To remove a selection, press the red X button. Definitions with other operators that are available in BEx Query Desinger 3.5, can be displayed and deleted but not edited. |
Hierarchy | You can select a hierarchy from the list box to define a prompt value. |
Hierarchy node* | Single value You can select one hierarchy node as the prompt value for the selected hierarchy. |
Hierarchy node* | Multiple value You can select multiple hierarchy nodes as the prompt values for the selected hierarchy. Press the + button, to add a field for additional value. Press the Filter button if you want to select multiple values in a list at once. To remove a selected member, press the red X button. |
Formula | You can enter a numeric value. The numeric value is used for measure calculations defined in BEx Query Designer with prompts. |
Text | You can enter a text. This prompt type can be used to assign text to columns or row headers or to change the description of a calculated measure |
4. Press OK to apply the selected values to your data.
The system validates all prompt values. If the validation is successful, the crosstab is displayed according to your selection.
One Data Source prompt
N Data Source prompt
Merging variables with prompt
Refreshing prompt
Using Variants
Related Documents
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Related SAP Notes/KBAs
1466118 Analysis Office hardware & software requirments
1518359 SAP BusinessObjects Analysis Office Release schedule
1518359 SAP BusinessObjects Analysis Office Release schedule
__________________________________________________________________________________________________________
Link to this page: https://wiki.scn.sap.com/wiki/x/Z7viGg
SAP BusinessObjects Analysis for Office tutorial: http://scn.sap.com/docs/DOC-7679
Analysis for Office SCN: http://scn.sap.com/community/businessobjects-analysis-ms-office
Analysis for Office main page: http://help.sap.com/boao
Analysis for Office Wiki page: http://wiki.scn.sap.com/wiki/x/kgxBGQ