system表空间增大是正常的,但急剧增大是不合理的。 1有可能是用户对象错误的放在系统表空间中 2也可能是system表空间的UNDO过大 3还有可能和高级复制的空间使用有关 可通过如下语句查看一下是不是有应用的段放到了SYSTEM中: 通过如下查询语句查看找出系统表空间中占用空间最多的Top9对象 SELECT * 高级复制会使用 sys.IDL_UB1$ 请参考eygle的文章(http://www./archives/2007/01/idl_ub1_table.html) 系统对象IDL_UB1$表的含义及作用 在ITPUB上有朋友遇到SYSTEM表空间快速扩展的问题 col segment_name for a25 col owner for a10 SELECT * FROM (SELECT BYTES, segment_name, segment_type, owner FROM dba_segments WHERE tablespace_name = 'SYSTEM' ORDER BY BYTES DESC) WHERE ROWNUM < 10 /
1 3082174464 IDL_UB1$ TABLE SYS 2 63979520 SOURCE$ TABLE SYS 3 12075008 IDL_UB2$ TABLE SYS 4 7749632 DEPENDENCY$ TABLE SYS 5 7356416 I_DEPENDENCY2 INDEX SYS 6 6438912 I_DEPENDENCY1 INDEX SYS 7 5521408 I_IDL_UB11 INDEX SYS 8 4341760 IDL_SB4$ TABLE SYS 9 3555328 I_ACCESS1 INDEX SYS
create table idl_ub1$ /* idl table for ub1 pieces */ ( obj# number not null, /* object number */ part number not null, /* part: 0 = diana, 1 = portable pcode, 2 = machine-dependent pcode */ version number, /* version number */ piece# number not null, /* piece number */ length number not null, /* piece length */ piece long raw not null) /* ub1 piece */ storage (initial 10k next 100k maxextents unlimited pctincrease 0) /
It is an intermediate language in which the structure of database tables and the logic of PL/SQL program units can be consistently represented as attributed trees. Oracle uses the DIANA IDL, which comes from compilers for the Ada programming language. DIANA stands for Descriptive Intermediate Attributed Notation for Ada. Anyway, this is one of four tables in the data dictionary used to store the DIANA for PL/SQL program units, and the database objects that they reference.
请参考: ITPUB论坛 http://www./showthread.php?s=&threadid=707073 IXORA网站 http://www./q+a/dd.htm |
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