User Guide > Data Generation Techniques and Parameters > Data Generation Parameters
  

Data Generation Parameters

Configure data generation parameters to define how to apply a data generation technique. The parameters that you configure depend on the data type that you need to generate. Some generation techniques are not available for all data types.
The following image shows data generation parameters that appear when you configure a random string generation rule:
Random string generation parameters are minimum length, maximum length, pattern, distribution percent, generate unique values, null values, and values that are not valid.

Exception Test Data

Configure exception test data parameters to generate null and values that are not valid.
Select a global rule that you previously saved or select default to generate random null values and values that are not valid. Invalid values are data values that do not conform to the generation rule.
For example, you want to create a random date generation rule that generates 85% of the dates between 2012, and 15% of the dates between 2005 and 2010. You create a rule called Dates_2005 that generates dates from 2005 to 2010. You save the Dates_2005 rule. You create a rule called Recent_Dates that generates dates from 2012 to 2013. When you create the Recent_Dates rule, you select Dates_2005 in the invalid values parameter and enter 15 in the percent parameter.

Exception Test Data Parameters

You can configure exception test data parameters based on the data generation rules that you create. You can use exception test data parameters to generate null values and values that are not valid.
The following table describes the exception test data parameters:
Parameter
Description
Null Values
A list of global rules that you previously created or the default rule to generate null values. The rules are available based on the data type you select.
Percentage defines the percentage of rows that can contain the null values. You can enter a whole number or a decimal number up to two places.
Invalid Values
A list of global rules that you previously created or the default rule to generate values that are not valid. The rules are available based on the data type you select.
Percentage defines the percentage of rows that can contain the values that are not valid. You can enter a whole number or a decimal number up to two places.