Requirement to rest the alert numbering

Hi Team,

I have a requirement to rest the alert numbering .

The number field used in alert table is alert.id .Currently it is  a four digit number (1021) and i need to make it as 5 digit number (10021).This alert table has not defined in the sequential number .so we could to change directly.

Is there any other way to change this

Please help.

 

regards,

Shameer Saleem