Column Type Storage Required
CHAR(M ) M bytes, 0 <= M <= 255
VARCHAR(M ) L +1 bytes, where L <= M and 0 <= M <= 255
BINARY(M ) M bytes, 0 <= M <= 255
VARBINARY(M ) L +1 bytes, where L <= M and 0 <= M <= 255
TINYBLOB, TINYTEXT L +1 bytes, where L < 2^8 bytes
BLOB, TEXT L +2 bytes, where L < 2^16 bytes
MEDIUMBLOB, MEDIUMTEXT L +3 bytes, where L < 2^24 bytes
LONGBLOB, LONGTEXT L +4 bytes, where L < 2^32 bytes
ENUM('value1 ','value2 ',...) 1 or 2 bytes, depending on the number of enumeration values (65,535 values maximum)
SET('value1 ','value2 ',...) 1, 2, 3, 4, or 8 bytes, depending on the number of set members (64 members maximum)
Load balance : Server 05
