ORA-01400 cannot insert NULL into (string)
What causes an ORA-01400 error?
An attempt was made to insert a NULL into the column “USER”.”TABLE”.”COLUMN”.
For example, if you enter:
create table a (a1 number not null);
insert into a values (null);
ORA-01400 cannot insert NULL into (“SCOTT”.”A”.”A1″) : which means you
cannot insert NULL into “SCOTT”.”A”.”A1″.
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