主键冲突了，语句是不是还会被写入redo？

考虑这种情况

insert into t values (8,'eight');

insert into t values(9,'nine');

insert into t values(10,'ten');

insert into t values(11,'ten');

insert into t values(12,'ten');

如果上面的语句 有一条发生了类似主键错误，那么我们怎么能知道是哪一条呢。

答案。。 通过logminer 可以看到。

SQL> SELECT TO_CHAR(TIMESTAMP,'YYYY-MM-DD HH24:MI:SS') AS TIME , USERNAME , SQL_REDO,TABLE_name , rollback FROM V$LOGMNR_CONTENTS WHERE  table_name='TEST_LOGMNR' ORDER BY TIME;

TIME                USERNAME SQL_REDO                                                                         TABLE_NAME                         ROLLBACK
------------------- -------- -------------------------------------------------------------------------------- -------------------------------- ----------
2013-04-19 16:21:36 SYS      create table test_logmnr (id number, val varchar2(10));                          TEST_LOGMNR                               0
2013-04-19 16:21:56 SYS      alter table test_logmnr add constraint tl_pk primary key (id);                   TEST_LOGMNR                               0
2013-04-19 16:22:11 SYS      insert into "SYS"."TEST_LOGMNR"("ID","VAL") values ('1','first');                TEST_LOGMNR                               0
2013-04-19 16:22:23 SYS      insert into "SYS"."TEST_LOGMNR"("ID","VAL") values ('2','second');               TEST_LOGMNR                               0
2013-04-19 16:22:56 SYS      insert into "SYS"."TEST_LOGMNR"("ID","VAL") values ('3','third');                TEST_LOGMNR                               0
2013-04-19 16:23:05 SYS      insert into "SYS"."TEST_LOGMNR"("ID","VAL") values ('2','second');               TEST_LOGMNR                               0
2013-04-19 16:23:05 SYS      delete from "SYS"."TEST_LOGMNR" where ROWID = 'AABF6MAABAAAR+CAAD';              TEST_LOGMNR                               1
2013-04-19 16:32:52 SYS      insert into "SYS"."TEST_LOGMNR"("ID","VAL") values ('2','second');               TEST_LOGMNR                               0
2013-04-19 16:32:52 SYS      delete from "SYS"."TEST_LOGMNR" where ROWID = 'AABF6MAABAAAR+CAAD';              TEST_LOGMNR                               1
2013-04-19 16:33:31 SYS      insert into "SYS"."TEST_LOGMNR"("ID","VAL") values ('8','second');               TEST_LOGMNR                               0

比如上面查到的结果中，rollback 前面的一条语句就是出错的。