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Auto Numbering

A very common column manipulation algorithm is the Auto Number option. This step allows you to reset the numbering each time the item in the source column changes.

 

For example, if you are checking the orders made, and you want to know how many items are listed on an order (the number of lines in an order) you can use this step to perform calculation.

 

The result would be as follows:

Order ID Order Line Number
Order1 1
Order1 2
Order1 3
Order2 1
Order2 2

 

The target column (Order Line Number) contains the line number for the current order. Every time the content of the Order ID column changes, the auto numbering starts once again from 1 (Starting Value).

 

To configure this manipulate step, follow the instructions below:

 

  1. In the Admin Navigation tree, select Interfaces > InterfaceName > Tasks > TaskName > Steps.
  2. On the toolbar, click New >New Manipulate Step.

Creating a New Manipulate Step

  1. Navigate to the Manipulate Columns section and select Auto Numbering.

Manipulate Columns Section

  1. In the Auto Numbering work area, fill in the following fields:

 

Fields Description

Name

 Provide a distinctive name for this step.

Is Active

Select the check box to engage the scheduler for this step.

Order of Execution

 Enter the order in which this step should be executed.

Filter Expression

 Optional. Use this filed to filter data from the source database prior to inserting it into the Schema table.

Sort Expression

 Optional. Use this field to sort data from the source database prior to inserting it into the Schema table.

Stop interface execution if query failed

 Optional. If enabled, the system will stop any data manipulation if the query returns an error.

Save Schema (enabled per interface)

 If selected, the schema is created for this step.

Index Column

 Select the source column for data manipulation.

Target Column

 Select the target column where the auto numbering will be placed.

Starting Value

 Allows you to change the starting value to a number other than 1.
Increment Specifies the increment step. By default, each next value is increased by 1.

 

  1. Click the Save button.