addrownumbers

Add a new column to the data extract with row numbers.

Introduction

Use the addrownumbers instruction to add a new column to the data extract with row numbers.

Creating a custom script transformation using the addrownumbers instruction

To create and configure a custom script using the addrownumbers instruction, follow these steps:

1. Create a custom script transformation.

2. In the Instructions step, select the addrownumbers instruction.

3. To configure the custom script instruction, fill in the following fields. Required fields are marked with an asterisk (*).

Field name*

Specify the name of the new column to add to the data extract.

Start value*

Specify the first value in the new column. Row numbering starts with this value.

Row increment*

Specify the number with which row numbers are incremented.

Example

Transformation configuration

Field Name

Row

Start Value

2

Row Increment

2

Subtable

Enter the name for a subtable that you want to use within this custom script.

A subtable is a temporary table that only exists for this custom script. You can apply additional instructions within the same custom script to the subtable. However, the subtable cannot be used in any other custom scripts.

If a subtable does not exist for the current custom script, the transformation is applied to the data extract, and the enriched data is output into the subtable. If the subtable already exists for the custom script, the subtable is used as the input for the transformation and optionally as the output.

Data table before transformation

Ad Group	Clicks
media	7
ecommerce	3
media|social	18
social	9

Data table after transformation

Ad Group	Clicks	Row
media	7	2
ecommerce	3	4
media|social	18	6
social	9	8