create index index_nameontable_name | view_name(colume_name[1,,,n])index_name 是索引名称table...
alter index常用的语法如下：(1)重建指定索引：ALTER INDEX ind ON TAREBUILD;(2)重建全部索引：ALTER INDEX ALL ON TAREBUILD;(3)禁用索引：ALTER INDEX ALL ON TADISABLE;（再次启用使用REBUILD重建而不是ENABLED）(4)指定参数重建索引：ALTER INDEX ALL ON TAREBUILD WITH(FILLFACTOR=80);(5)指定...
百度试题 题目ALTER INDEX 索引名 ON 表名 REBUILD 是()操作 相关知识点: 试题来源: 解析 激活索引 反馈 收藏
When you rebuild index online, it will do a full table scan on the base table. At the same time it will maintain a journal table for DML data, which has changed during this index rebuilding operation. So it should take longer time, specially if you do lots of DML on the same table,...
T1 T1 12create index t_ind on t1(id); 4.2 分区表,rebuild看锁 --会话一、delete操作 SCOTT > delete t where id=1; 1 row deleted. --会话二、rebuild HR > alter session set ddl_lock_timeout=60000; alter INDEX SCOTT.T_P_IND REBUILD PARTITION SYS_P113; ...
ALTER INDEX 索引名 ON 表名 REBUILD 是()操作答案: (1) 激活索引 点击查看答案 手机看题 你可能感兴趣的试题 多项选择题 观察草履虫的食物泡时,可在盖玻片边缘一侧滴加()。10min后可观察着色的食物通过口沟、胞咽在草履虫体内形成食物泡和食物泡在体内环流的路线。 A.碘酊B.蓝墨水C.墨汁D.0.01%中性红染...
+ No DML and DDL possible on the base table + Comparatively faster 两者重建索引时的扫描方式不同,rebuild用的是“INDEX FAST FULL SCAN”,rebuild online用的是“TABLE ACCESS FULL”; 即rebuild index是扫描索引块,而rebuild index online是扫描全表的数据块. ...
ALTER INDEX ALL ON HumanResources.Department REBUILD;So I received a few questions on this topic which I’ll detail here – along with the query I used to “prove” out the answers (and if you find varying results in your own testing, I would like to hear about it):Question: When ...
1 测试默认的rebuild,即rebuild offline SQL>alterindexidx_rb_test rebuild;Indexaltered. SQL>selectsid,type,id1,id2,lmode,request,blockfromv$lockwheretypein('DL','TM','TX'); SQL>/SID TY ID1 ID2 LMODE REQUEST BLOCK--- -- --- --- --- --- ---133DL872860300133DL872860300133TM8728604...
ALTER INDEX { index_name | ALL } ON { REBUILD { [ PARTITION = ALL [ WITH ( <rebuild_index_option> [ , ...n ] ) ] ] | [ PARTITION = partition_number [ WITH ( <single_partition_rebuild_index_option> [ , ...n ] ) ] ] } | DISABLE | REORGANIZE [ PARTITION = partition_nu...