κΈ°μ‘΄μ μμ±λ ν μ΄λΈμ 컬λΌμ λ°μ΄ν° νμ κ³Ό character setμ λ³κ²½νλ λ°©λ²μ΄λ€. ν μ΄λΈ μ»¬λΌ νμ λ³κ²½ ALTER TABLE ν μ΄λΈλͺ MODIFY COLUMN 컬λΌλͺ 1 νμ 1 NOT NULL COMMENT 'μ½λ©νΈ1', MODIFY COLUMN 컬λΌλͺ 2 νμ 2 NULL COMMENT 'μ½λ©νΈ2', MODIFY COLUMN 컬λΌλͺ 3 νμ 3 NOT NULL COMMENT 'μ½λ©νΈ3'; ν μ΄λΈ CHARSET λ³κ²½ ALTER TABLE ν μ΄λΈλͺ CONVERT TO CHARACTER SET utf8mb4;