表上有事务,创建索引:
[oracle@yyjk ~]$ sqlplus tlcbuser/tlcbuser
SQL*Plus: Release 11.2.0.4.0 Production on 星期三 8月 22 08:27:41 2018
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> set linesize 200
SQL> set pagesize 200
SQL> select * from v$mystat where rownum<2;
SID STATISTIC# VALUE
---------- ---------- ----------
143 0 0
SQL> create table test_index as select owner,object_id,object_name,created from dba_objects;
Table created.
SQL>
SQL> insert into test_index values ('aa','11','aa',sysdate);
1 row created.
SQL>
SQL> create index test_index_idx1 on test_index(object_id) online;
SQL> select * from v$mystat where rownum<2;
SID STATISTIC# VALUE
---------- ---------- ----------
30 0 0
SQL> desc test_index
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
OWNER VARCHAR2(30)
OBJECT_ID NUMBER
OBJECT_NAME VARCHAR2(128)
CREATED
SESSION_ID SQL_ID MACHINE BLOCKING_SESSION SAMPLE_TIME MODULE PROGRAM EVENT SQL_TEXT SQL_FULLTEXT
1 30 31w9z6bn4gq6r yyjk 143 22-8月 -18 08.48.19.084 上午 SQL*Plus sqlplus@yyjk (TNS V1-V3) enq: TX - row lock contention create index test_index_idx1 on test_index(object_id) online <CLOB>
2 30 31w9z6bn4gq6r yyjk 143 22-8月 -18 08.48.18.084 上午 SQL*Plus sqlplus@yyjk (TNS V1-V3) enq: TX - row lock contention create index test_index_idx1 on test_index(object_id) online <CLOB>
3 30 31w9z6bn4gq6r yyjk 143 22-8月 -18 08.48.17.084 上午 SQL*Plus sqlplus@yyjk (TNS V1-V3) enq: TX - row lock contention create index test_index_idx1 on test_index(object_id) online <CLOB>
4 30 31w9z6bn4gq6r yyjk 143 22-8月 -18 08.48.16.084 上午 SQL*Plus sqlplus@yyjk (TNS V1-V3) enq: TX - row lock contention create index test_index_idx1 on test_index(object_id) online <CLOB>
5 30 31w9z6bn4gq6r yyjk 143 22-8月 -18 08.48.15.084 上午 SQL*Plus sqlplus@yyjk (TNS V1-V3) enq: TX - row lock contention create index test_index_idx1 on test_index(object_id) online <CLOB>
6 30 31w9z6bn4gq6r yyjk 143 22-8月 -18 08.48.14.084 上午 SQL*Plus sqlplus@yyjk (TNS V1-V3) enq: TX - row lock contention create index test_index_idx1 on test_index(object_id) online <CLOB>
表上有事务,online 创建索引会等待?
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转载自blog.csdn.net/zhaoyangjian724/article/details/81937621
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