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Asked: 2026-05-24T12:30:07+00:00

I have a table in MYSQL in with a primary key id int(11) (auto-incremented).

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I have a table in MYSQL in with a primary key id int(11) (auto-incremented). Now I have a program which reads some text file and enters the value in id column.
So my table should contains :

id
897413
791783

But what happens is that, I can’t find big numbers in my table. Is this because of maximum value that int(11) can hold? Increased int(11) to int(20) still facing same problem. I can’t change the datatype to big int as I have already implemented a lot of code.

EDIT:
I tried to insert a single record with id as 523826 and it got saved in DB as 450258. Why so?

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1 Answer

  1. Editorial Team

    Definition from mysql manual for the int data type:

    A normal-size integer. The signed range is -2147483648 to 2147483647. The unsigned range is 0 to 4294967295.

    The int type is always 4 bytes (32 bits). The 11 in int(11) is just the “display width”, that only matters for UNSIGNED ZEROFILL columns. More details on this blog post.

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