The sequential number function generates numbers that are incremented sequentially.
You can use the sequential number function to replace character or numeric data. You must enter a start value and a value by which the numbers are incremented. The start and incremental values must be integers within the range -2,147,483,648 to 2,147,483,647.
The generated value is limited by the data type and length of the destination column. If the generated value exceeds the length of the destination column, the function automatically resets to the start value.