\u8fd9\u4e2a10.1\u5c31\u589e\u52a0\u7684\u65b0\u7279\u6027\uff0c\u662f\u6700\u8fd1\u624d\u53d1\u73b0\u7684\u3002<\/p>\n
\u516c\u53f8\u4e2d\u7684\u65b0\u4eba\u95ee\u8d77\u7d22\u5f15\u5931\u6548\u5bf9\u8868\u5f71\u54cd\uff0c\u4e8e\u662f\u968f\u624b\u505a\u4e86\u4e2a\u4f8b\u5b50\uff0c\u624d\u53d1\u73b010g\u4e2d\u5df2\u7ecf\u6539\u53d8\u4e869i\u4e2d\u7684\u9ed8\u8ba4\u65b9\u5f0f\uff1a<\/p>\n
SQL> create table t_index (id number, name varchar2(30));\r\nTable created.\r\nSQL> create index ind_t_id on t_index(id);\r\nIndex created.\r\nSQL> create index ind_t_name on t_index(name);\r\nIndex created.\r\nSQL> insert into t_index values (1, 'a');\r\n1 row created.\r\nSQL> commit;\r\nCommit complete.\r\nSQL> alter table t_index move; \r\nTable altered.\r\nSQL> select index_name, status from user_indexes where table_name = 'T_INDEX';\r\nINDEX_NAME STATUS\r\n------------------------------ --------\r\nIND_T_ID UNUSABLE\r\nIND_T_NAME UNUSABLE\r\nSQL> insert into t_index values (2, 'b');\r\n1 row created.<\/pre>\n\u5f53\u8fd9\u4e2a\u63d2\u5165\u8bed\u53e5\u6210\u529f\u540e\uff0c\u6211\u53d1\u73b0\u81ea\u5df1\u505a\u7684\u4f8b\u5b50\u5c45\u7136\u548c\u9884\u671f\u4ea7\u751f\u4e86\u5dee\u5f02\uff0c\u5728\u6211\u7684\u5370\u8c61\u4e2d\uff0c\u8fd9\u4e2a\u63d2\u5165\u8bed\u53e5\u662f\u5e94\u8be5\u62a5\u9519\u7684\u3002
\n\u968f\u540e\u9a6c\u4e0a\u505a\u4e86\u4e09\u4ef6\u4e8b\u60c5\uff1a<\/p>\n
SQL> select * from v$version;\r\nBANNER\r\n----------------------------------------------------------------\r\nOracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi\r\nPL\/SQL Release 10.2.0.4.0 - Production\r\nCORE 10.2.0.4.0 Production\r\nTNS for Linux: Version 10.2.0.4.0 - Production\r\nNLSRTL Version 10.2.0.4.0 - Production\r\nSQL> select index_name, status from user_indexes where table_name = 'T_INDEX';\r\nINDEX_NAME STATUS\r\n------------------------------ --------\r\nIND_T_ID UNUSABLE\r\nIND_T_NAME UNUSABLE\r\nSQL> show parameter index\r\nNAME TYPE VALUE\r\n------------------------------------ ----------- ------------------------------\r\noptimizer_index_caching integer 0\r\noptimizer_index_cost_adj integer 100\r\nskip_unusable_indexes boolean TRUE<\/pre>\n\u9996\u5148\u7b2c\u4e00\u4ef6\u4e8b\u60c5\u5c31\u662f\u575a\u6301\u5f53\u524d\u6570\u636e\u5e93\u7684\u7248\u672c\uff0c\u6211\u53ef\u4ee5\u786e\u5b9a\u57289i\uff0c\u6700\u540e\u4e00\u4e2aINSERT\u4f1a\u7531\u4e8e\u7d22\u5f15\u7684\u72b6\u6001\u4e0d\u53ef\u7528\u800c\u5bfc\u81f4\u9519\u8bef\uff0c\u800c\u5f53\u524d\u53ef\u4ee5\u6267\u884c\u6210\u529f\uff0c\u56e0\u6b64\u9996\u5148\u786e\u5b9a\u7248\u672c\u95ee\u9898\u3002
\n\u5728\u786e\u8ba4\u662f10.2\u7248\u672c\u540e\uff0c\u968f\u540e\u53c8\u575a\u6301\u4e86\u4e00\u4e0b\u7d22\u5f15\u7684\u72b6\u6001\uff0c\u770b\u770b\u662f\u5426\u63d2\u5165\u5bfc\u81f4Oracle\u91cd\u5efa\u4e86\u7d22\u5f15\u3002\u800c\u5f53\u524d\u7d22\u5f15\u7684\u72b6\u6001\u5e76\u672a\u53d1\u751f\u53d8\u5316\uff0c\u8bf4\u660eOracle\u5728\u6267\u884c\u63d2\u5165\u65f6\uff0c\u8df3\u8fc7\u4e86\u8fd9\u4e9b\u4e0d\u53ef\u7528\u7684\u7d22\u5f15\u3002
\n\u4e8e\u662f\u987a\u7406\u6210\u7ae0\u7684\u5c31\u662f\u7b2c\u4e09\u4e2a\u52a8\u4f5c\uff0c\u575a\u6301\u5305\u542bindex\u5173\u952e\u5b57\u7684\u521d\u59cb\u5316\u53c2\u6570\uff0c\u770b\u770b\u662f\u5426\u662f10g\u4e2d\u5b58\u5728\u4e86\u4e00\u4e2a\u7c7b\u4f3c\u7684\u521d\u59cb\u5316\u53c2\u6570\uff0c\u4f7f\u5f97\u7d22\u5f15\u5728\u4e0d\u53ef\u7528\u72b6\u6001\u4e0b\uff0c\u57fa\u8868\u540c\u6837\u53ef\u4ee5\u8fdb\u884cDML\u64cd\u4f5c\u3002
\n\u67e5\u8be2\u679c\u7136\u53d1\u73b0\u4e86\u8fd9\u4e2a\u53c2\u6570\uff0c\u800c\u4e14\u4ece\u540d\u79f0\u4ee5\u53ca\u8bbe\u7f6e\u7684\u503c\u6765\u770b\uff0c\u786e\u8ba4\u5c31\u662f\u8981\u627e\u7684\u521d\u59cb\u5316\u53c2\u6570\uff1a<\/p>\n
SQL> alter session set skip_unusable_indexes = false;\r\nSession altered.\r\nSQL> insert into t_index values (3, 'c');\r\ninsert into t_index values (3, 'c')\r\n*\r\nERROR at line 1:\r\nORA-01502: index 'TEST.IND_T_ID' or partition of such index is in unusable state\r\n\r\nSQL> alter index ind_t_id rebuild;\r\nIndex altered.\r\nSQL> alter index ind_t_name rebuild;\r\nIndex altered.\r\nSQL> insert into t_index values (3, 'c');\r\n1 row created.\r\nSQL> commit;\r\nCommit complete.<\/pre>\n\u5c06\u521d\u59cb\u5316\u53c2\u6570\u8bbe\u7f6e\u4e3aFALSE\u540e\uff0c\u6570\u636e\u5e93\u7684\u884c\u4e3a\u679c\u7136\u8868\u73b0\u7684\u548c9i\u4e2d\u4e00\u81f4\u3002
\n\u67e5\u8be2\u4e86\u4e00\u4e0bOracle\u7684\u6587\u6863\uff0c\u53d1\u73b0\u572810.1\u4e2dOracle\u5df2\u7ecf\u5f15\u5165\u4e86\u8fd9\u4e2a\u521d\u59cb\u5316\u53c2\u6570\u3002\u8fd9\u4e2a\u53c2\u6570\u7684\u5f15\u5165\u53ef\u4ee5\u907f\u514d\u7531\u4e8e\u8868MOVE\u6216\u5176\u4ed6DDL\u5bfc\u81f4\u7684\u7d22\u5f15\u5931\u6548\uff0c\u4ece\u800c\u5f71\u54cd\u5230\u6574\u4e2a\u8868\u7684\u53ef\u7528\u6027\uff0c\u540c\u65f6\u8fd9\u4e2a\u53c2\u6570\u7684\u5f15\u5165\u4e5f\u4f1a\u5b58\u5728\u95ee\u9898\uff0c\u5b83\u4f7f\u5f97\u672c\u6765\u53ef\u4ee5\u5f88\u5feb\u53d1\u73b0\u7684\u95ee\u9898\u57cb\u85cf\u7684\u5f88\u6df1\uff0c\u751a\u81f3\u53ef\u80fd\u9020\u6210\u4e25\u91cd\u7684\u6027\u80fd\u9690\u60a3\u3002
\n\u5f53\u7136Oracle\u4e5f\u610f\u8bc6\u5230\u8fd9\u4e00\u70b9\uff0c\u5728\u544a\u8b66\u65e5\u5fd7\u4e2d\u53ef\u4ee5\u770b\u5230\u8fd9\u4e9b\u7684\u63d0\u793a\u4fe1\u606f\uff1a<\/p>\n
Sat Dec 31 10:53:33 2011\r\nSome indexes or index [sub]partitions of table TEST.T_INDEX have been marked unusable<\/pre>\n\u8fd9\u540c\u6837\u4e5f\u8bf4\u660e\uff0c\u4efb\u4f55\u4e00\u4e2a\u53c2\u6570\u90fd\u6709\u4e24\u4e2a\u65b9\u9762\uff0c\u5982\u679c\u8bbe\u7f6e\u53c2\u6570\u540e\u53ea\u6709\u4f18\u70b9\u800c\u6ca1\u6709\u7f3a\u70b9\uff0cOracle\u4e5f\u5c31\u6ca1\u6709\u5fc5\u8981\u8ba9\u7528\u6237\u53bb\u9009\u62e9\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u4e2a10.1\u5c31\u589e\u52a0\u7684\u65b0\u7279\u6027\uff0c\u662f\u6700\u8fd1\u624d\u53d1\u73b0\u7684\u3002 \u516c\u53f8\u4e2d\u7684\u65b0\u4eba\u95ee\u8d77\u7d22\u5f15\u5931\u6548\u5bf9\u8868\u5f71\u54cd\uff0c\u4e8e\u662f\u968f\u624b\u505a\u4e86\u4e2a\u4f8b\u5b50\uff0c\u624d\u53d1\u73b010g\u4e2d\u5df2\u7ecf\u6539\u53d8\u4e869i\u4e2d\u7684\u9ed8\u8ba4\u65b9\u5f0f\uff1a SQL> create table t_index (id number, name varchar2(30)); Table created. SQL> create index ind_t_id on t_index(id); Index created. SQL> create index ind_t_name on t_index(name); Index created. SQL> insert into t_index values (1, ‘a’); 1 row created. SQL> commit; … Continue reading