DBMS_ERRLOG提供了一个存储过程CREATE_ERROR_LOG，这个存储过程创建一个错误日志表，当DML出错时，操作不会终止和回滚，而是将相
dml_table_name
The name of the DML table to basethe error logging table on. The name can be fully qualified (forexample, emp, scott.emp,"EMP", "SCOTT"."EMP"). If a namecomponent is enclosed in double quotes, it will not be uppercased.
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