Get Dimension DataReader

Provides a DataReader for reading a forward-only stream of rows from an InVision Dimension tble.

Example
This flow reads data from an InVision Dimension table using a forward-only data reader and streams the result to downstream actions.
It retrieves the selected dimension in either wide or parent-child format, exposes the data as a DataReader, and passes it to subsequent actions for processing, such as exporting the data to a file or uploading it to storage.

Properties

Name	Type	Description
Title	Optional	The name of the action as shown in the flow.
Connection	Required	A valid InVision Connection used to read dimension data.
Dimension	Required	The dimension to read data from.
Table type	Optional	Specifies whether to read from the wide or parent-child dimension table.
Reader variable name	Optional	Name of the variable that stores the returned DataReader for use by subsequent actions.
Description	Optional	Additional notes about the action or its configuration.

Returns

IDataReader

When to use this action

Use Get Dimension DataReader when you need to read large sets of dimension data efficiently and pass them to downstream actions without loading everything into memory at once.

This action is a good fit when you want to:

• Export a dimension to Excel, CSV, or another file format
• Stream dimension data into external storage or another system
• Process dimension records sequentially, for example for transformation or validation
• Work with large dimensions where loading the full result into memory would be inefficient

Because the data is exposed as a forward-only DataReader, this action is optimized for streaming and batch-style processing, not for random access or in-flow lookups.

When not to use it

Avoid this action if you need to:

• Access individual dimension members by key
• Read the same data multiple times in a flow
• Modify or update dimension data

In those cases, use actions designed for direct lookup or write operations instead. For example Load Dimension Tree.