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a!queryColumn() Function

Function

a!queryColumn( field, alias, visible )

Creates a Column object for use inside a Selection object.

See also: Column, Selection, Query

Parameters

Keyword	Type	Description
`field`	Text	The field of the data type you want to retrieve. The fields available depend on the source of the data and the data type of that source.
`alias`	Text	The short name by which the result of the Column value can be referenced in other areas of the Query value. Values are case-sensitive.
`visible`	Boolean	Determines whether the column should be visible to end users. If `false`, the data for the column will not be retrieved, but it can be used for sorting. Default value is `true`.

Returns

Selection

Usage considerations

Using the fields parameter

The field parameter is required.
Fields that are children of a multiple cannot be selected.

Using the alias parameter

If no alias is given, the alias for the column will be inferred as the field value.
If the alias is not provided and the field name collides with another existing alias, the field name will be suffixed with an incremented digit appended to the end when returned in the result.

Feature compatibility

The table below lists this function's compatibility with various features in Appian.

Feature	Compatibility	Note
Portals	Partially compatible	Can be used with Appian Portals if it is connected using an integration and web API.
Offline Mobile	Partially compatible	Can be used with offline mobile if it is loaded at the top of the form.
Sync-Time Custom Record Fields	Incompatible
Real-Time Custom Record Fields	Incompatible	Custom record fields that evaluate in real time must be configured using one or more Custom Field functions.
Process Reports	Incompatible	Cannot be used to configure a process report.
Process Events	Incompatible	Cannot be used to configure a process event node, such as a start event or timer event.

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