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Data Source Properties

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Data Source Properties

This topic lists the properties of a Data Source object in a catalog.

Property NameDescription
Display Rounding ModeSpecifies the rounding mode for displaying numeric data values in reports that are created on this data source. Choose an option from the drop-down list.
  • Up - Rounding mode to round away from zero. Always increments the digit prior to a non-zero discarded fraction.
  • Down - Rounding mode to round towards zero. Never increments the digit prior to a discarded fraction (that is, truncates).
  • Ceiling - Rounding mode to round towards positive infinity. If the result is positive, behaves as for Up; if negative, behaves as for Down.
  • Floor - Rounding mode to round towards negative infinity. If the result is positive, behaves as for Down; if negative, behaves as for Up.
  • Half up - Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round up. Behaves as for Up if the discarded fraction is >= 0.5; otherwise, behaves as for Down.
  • Half down - Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round down. Behaves as for Up if the discarded fraction is > 0.5; otherwise, behaves as for Down.
  • Half even - Rounding mode to round towards the "nearest neighbor" unless both neighbors are equidistant, in which case, round towards the even neighbor. Behaves as for Half up if the digit to the left of the discarded fraction is odd; behaves as for Half down if it's even.

For more information about the rounding mode, refer to http://docs.oracle.com/javase/7/docs/api/java/math/RoundingMode.html.

Data Type: Enumeration

Is DefaultSpecifies whether the data source is the default data source for the current catalog. One catalog must have one and only one default data source.

Data type: Boolean

NameSpecifies the name of the data source.

Data type: String

Pre-joinSpecifies whether or not to apply the pre-join information defined on the data source when building a query or defining join relationships in business views in the same data source.

Data type: Boolean

Use Mapping Name PrefixSpecifies whether to automatically add table/imported SQL/stored procedure names as the prefix before column names in the default mapping names when adding tables, importing SQLs and stored procedures from DBMS into the data source.

By default the property is false, so when table1.column1 is added into the data source, its default mapping name depends on whether the mapping name "column1" already exists in the data source: if it exists, table1_column1 will be used as the default mapping name of table1.column1; if it does not exist, column1 will be used. If you want to use "table1_column1" no matter whether "column1" exists, you can set this property to true, then table names will always be added as the prefix of columns.

Data type: Boolean

Display Rounding Mode

Input numberInput rounded to one digit with Up roundingInput rounded to one digit with Down roundingInput rounded to one digit with Ceiling roundingInput rounded to one digit with Floor roundingInput rounded to one digit with Half up roundingInput rounded to one digit with Half down roundingInput rounded to one digit with Half even rounding
5.5
6
5
6
5
6
5
6
2.5
3
2
3
2
3
2
2
1.6
2
1
2
1
2
2
2
1.1
2
1
2
1
1
1
1
1.0
1
1
1
1
1
1
1
-1.0
-1
-1
-1
-1
-1
-1
-1
-1.1
-2
-1
-1
-2
-1
-1
-1
-1.6
-2
-1
-1
-2
-2
-2
-2
-2.5
-3
-2
-2
-3
-3
-2
-2
-5.5
-6
-5
-5
-6
-6
-5
-6

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