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3#
发表于 2013-5-17 16:52:35
SQL> select INDEX_NAME,COLUMN_NAME,TABLE_NAME from user_ind_columns where TABLE_NAME='T1';
INDEX_NAME COLUMN_NAME TABLE_NAME
------------------------------ -------------------------------------------------- ------------------------------
T1_IDX1 OBJECT_ID T1
SQL> create index t2_indx2 on t1(OBJECT_ID,1) online compute statistics;
Index created.
SQL> select INDEX_NAME,COLUMN_NAME,TABLE_NAME from user_ind_columns where TABLE_NAME='T1';
INDEX_NAME COLUMN_NAME TABLE_NAME
------------------------------ -------------------------------------------------- ------------------------------
T1_IDX1 OBJECT_ID T1
T2_INDX2 OBJECT_ID T1
T2_INDX2 SYS_NC00016$ T1
系统创建了 SYS_NC00016$ 这个名字,这里是否有规律? |
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