Integer data types are numbers containing no fractional part. For example, ages can be designated as integer data types. Integers are classified as 1‑byte, 2‑byte, and 4‑byte, depending on the range of numbers to be stored within a given column.

If you enter integer data outside the range of an integer4 data type, the integer is converted to floating point. For instance, an entry of 5000000000 exceeds the range of an integer4, and so is stored as float.