他们允许的并发操作更多,一般直接用DML语句自动获得,而不用lock语句。 详细参考concepts文档中的"Type Of Locks": http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96524/c21cnsis.htm#2937 ------------------------------------- 怎么unl
他们允许的并发操作更多,一般直接用DML语句自动获得,而不用lock语句。 详细参考concepts文档中的"Type Of Locks": http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96524/c21cnsis.htm#2937 --- 怎么unlock table 解锁 方法一、kill session: SQL> select object_id,session_id from v$locked_...
Oracle中的锁定可以分为几类:DML lock(data lock),DDL lock(dictionary lock)和internal lock/latch。 DML lock又可以分为row lock和table lock。row lock在select.. for update/insert/update/delete时隐式自动产生,而table lock除了隐式产生,也可以调用lock table <table_name> in </table_name> name来显示...
Oracle Database - Enterprise Edition - Version 11.2.0.1 and later: ORA-00069: Cannot Acquire Lock -- Table Locks Disabled
EXCLUSIVE 模式禁止其它事务访问表。任何其它事务都不能对表执行查询、任何更新或任何其它操作。如果用LOCK TABLEtIN EXCLUSIVE MODE排它性地锁定表 t,则服务器的缺省行为是不获取t的行锁定。将 SUBSUME_ROW_LOCKS 选项设置为 OFF 可以禁用此行为。 用法
ORA-00069: cannot acquire lock -- table locks disabled for MYTAB Then when we try to enable ...
Recently we have been encountering a large amount of table locks on the fnd_concurrent_requests table. I run Purge concurrent requests nightly and have the main nightly run purge anything older that 7 days and I then have individula runs that purge specific jobs at 2 days due to the frequen...
Specify the schema containing the table or view. If you omitschema, then Oracle Database assumes the table or view is in your own schema. table/view Specify the name of the table or view to be locked. If you specifyview, then Oracle Database locks the base tables of the view. ...
Data in a temporary table is private to the session. Each session can only see and modify its own data. DML locks are not acquired on the data of the temporary tables. The LOCK statement has no effect on a temporary table, because each session has its own private data. ...
Oracle Database supports several types of index. An index-organized table is a table in which the data is stored in an index structure. See Chapter 3, "Indexes and Index-Organized Tables". Partitions Partitions are pieces of large tables and indexes. Each partition has its own name and may...