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Glossary

Incremental method

For the incremental method of filling, it is possible to specify the initial value and how many times each value should be used. For example, if you specify 3 as the initial value and 2 in the "times" field, you will get the following sequence:3,3,4,4,5,5... Moreover, you can specify step value and format of generated value output.
For the incremental method there is an additional option allowing you to specify that the sequence will be started from the next value after that already existing in the database. In this case the program calculates the maximum column value, increases this value by one and uses this new value to start the sequence.

There are settings for this fill method:

  • "Insert after last" means the program will find maximum existing value of the column and generate values greater it. Otherwise, the program will use "Starting with" value specified by user.
  • "Step" property will be added to current value at each step. Negative values are acceptable for this parameter.
  • Format defines the view of value. This option is applicable for numeric values only.
  • "Use each value" property defines how many times each value will be used by the data generator.
  • For date and time values step type (hour, day, minute, etc.) can be specified.

DTM Data Generator: Incremental fill method setup window

Example: for "Starting with" is 5, "Step" is 3 and "Use each value" is 2 and format "%03d" the following sequence will be generated: 005,005,008,008,011,011,...