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Query Column Properties

This topic describes the properties of a Column object in a query.

There are two types of the Column object in a query: table column and computed column. All the properties are read only for table columns, while some are editable for computed columns.

Property Name Description
Array Specifies whether the column is an array type.

Data type: Boolean
Column Name Shows the name of the column in the raw database.
Currency Shows whether to control the SQL type of the formulas and summaries which reference the column if the column is of the BigDecimal type.
  • true
    Select to apply the BigDecimal type to the formulas and summaries and set their SQL Type to 3.
  • false
    Select to apply normal data type to the formulas and summaries.

Data type: Boolean

Note icon Designer does not provide this property for a computed column.
Description Specifies the description of the object.

Data type: String

Display Width Specifies the display width of the object, which takes effect when you insert the object into reports. Type a numeric value to change the width. If you do not set the display width, Designer applies a default width to it automatically.

Data type: Float

Note icon After you set the Display Width property of an object and use the object while creating a data component with wizard, Designer may adjust its width according to the paper size.
Name Shows the mapped name of the column in the catalog.
Nullable Specifies the nullability for the values of the object. Choose an option from the drop-down list.
  • true
    Select to indicate the object supports null values.
  • false
    Select to indicate the values of the object cannot be null.
  • unknown
    Select to indicate whether the values of the object can be null or not is unknown.

Data type: Enumeration
Precision Specifies the precision for the values of the object. The default precision comes from data source metadata and defines the object's largest number of digits. The larger the precision is, the more memory it might take; however, the more accurate values you can get.

Data type: Integer
Scale Specifies the number of digits to the right of the decimal point for the values of the object.

Data type: Integer
SQL Type Specifies the SQL type of the object defined in Java. Choose an option from the drop-down list.

Data type: Integer

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