Auto Increment varchar in MySQL

Question

Is there a way to set primary key auto increment, type of varchar in mySql?

Answer 1

for my experience, you can make Varcar ID as auto increment but you must have logic..let say

 Dim crnum As String = "CR00001"
    Dim iTemp As Integer = 0

                iTemp = CInt(crnum.Substring(4, crnum.Length - 4)) '// get only the #'s from String and Convert them to Integer.
                iTemp += 1 '// increase the ID # + 1.
                crnum = crnum.Substring(0, 4) & iTemp.ToString("00000") '// set the ID back with String and #'s formatted to 5 digit #.

but you must do your own logic ,because after u run it for second time it will become duplicate primary key so, you must think your logic to apply your code. Anything is possible. ;)