装库时出错，ORA_01400在线等

cornation

I was importing export dump file into a database. I got the following
>; >;>; error
>; >;>;
>; >;>; . . importing table "SPNLCNTRLDATA"
>; >;>; IMP-00019: row rejected due to ORACLE error 1400
>; >;>; IMP-00003: ORACLE error 1400 encountered
>; >;>; ORA-01400: cannot insert NULL into
>; >;>; ("SYSADM"."SPNLCNTRLDATA"."THDGROWACTBTNS"
>; >;>; Column 1 SAS_PROJ_AMORT
>; >;>; Column 2 ENG
>; >;>; Column 3 11
>; >;>; Column 4 O
>; >;>; Column 5 X
>; >;>; Column 6
>; >;>; Column 7 3
>; >;>; Column 8 X
>; >;>; Column 9 3
>; >;>; Column 10
>; >;>; Column 11 0
>; >;>; Column 12 O
>; >;>; Column 13 O
>; >;>; Column 14 O
>; >;>; Column 15
>; >;>; Column 16 O
>; >;>; Column 17 1
>; >;>; Column 18 O
>; >;>; Column 19 3
>; >;>; Column 20 0
>; >;>; Column 21 0
>; >;>; Column 22 0
>; >;>; Column 23 0 5870 rows imported
>; >;>; . . importing table "SPNLDEFN" 9602 rows
>; >;>; imported
>; >;>;
>; >;>; I checked out in the database where dump was taken for this particular
>; >;>; record there is nothing null. There exists some value but, the error
>; >;>; appears as if there was no value for some of the columns. What could be
>; >;>; the problem?