INSERT AGAIN ERROR

HI,

I TRY TO INSERT DATA IN DATA BASE TABLE

BELOW ERROR SHOWN ANYBODT HELP ME.

''The work area "CUSTOMER_T" is not long enough . ''.

CODING:

INSERT INTO KNA1 VALUES CUSTOMER_T.

KNA1-KUNNR = CUSTOMER_T-KUNNR,

KNA1-ANRED = CUSTOMER_T-ANRED,

KNA1-NAME1 = CUSTOMER_T-NAME1,

KAN1-PFACH = CUSTOMER_T-PFACH,

KAN1-STRAS = CUSTOMER_T-STRAS,

KAN1-PSTLZ = CUSTOMER_T-PSTLZ,

KAN1-ORT01 = CUSTOMER_T-ORT01,

KAN1-TELF1 = CUSTOMER_T-TELF1,

KAN1-TELFX = CUSTOMER_T-TELFX.