The maximum size of a CHAR data type in DB2 is 254 bytes.
In IBM Db2, the maximum size of a CHAR data type is 254 bytes. CHAR is a fixed-length character data type, and it can store up to 254 bytes of character data. Keep in mind that the actual storage may be less than 254 characters if the data stored is shorter, as CHAR pads the remaining space with spaces.