What affects the maximum allowable value in stored data?

The maximum allowable value in stored data depends on several factors:

• Data type: for example, integer types (int, long) have fixed ranges determined by their size in memory.
• Database constraints: data types in DBMS have their own maximums (e.g., VARCHAR(255) is limited to 255 characters).
• Programming language constraints: for example, in Java, the int type occupies 4 bytes and stores values from -2^31 to 2^31-1.
• Hardware constraints: available memory and disk space.
• Logical constraints: business rules may restrict permissible values.

Example: in Java, the byte type stores values from -128 to 127; attempting to store a larger number will result in overflow.