I am facing a problem with my phpadmin database. My primary key for a table got negative and I can’t see where the problem lies. I set the primary key as INT 20, auto increment 1. The negative integer is not a small number
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I am facing a problem with my phpadmin database. My primary key for a table got negative and I can’t see where the problem lies. I set the primary key as INT 20, auto increment 1. The negative integer is not a small number
By default MySQL stores your
INT(20)as unsigned integer on 4 bytes:INT(4). This means you have a range between-2147483648and2147483647and probably you’re overflowing to negative values. Usingunsignedgives you a range between0and4294967295. You should consider using BIGINT(8). See the documentation on numeric types and how MySQL handles overflow!