在Oracle数据库中,禁用索引(Disable Index)是一项常见的操作,主要用于优化性能或在进行批量数据加载时减少索引维护的开销。以下是关于如何在Oracle中禁用索引的详细解答: 1. 了解Oracle中禁用索引的概念和原因 概念:禁用索引意味着暂时使索引不可用,数据库将不会对该索引进行维护(如插入、更新、删除操作时的索引更新)。
近日,在处理DAO层oracle/mysql尽可能通用的问题,把DDL抽到了过程中,alter index disable的时候报了个错“ORA-02243: ALTER INDEX 或 ALTER MATERIALIZED VIEW 选项无效”,经查,原因是disable,enable针对函数索引。普通索引为unusable和rebuild。如下: SQL> create table test as select * from all_objects; SQL> ...
将该触发器disable后,数据顺利导入。后续重新enable该触发器。
in stored procedures, 15-18 constraints, 1-57 alternatives to, 25-5 applications can find violations, 25-6 CHECK, 25-21 default values and, 25-24 defined, 10-4 disabling temporarily, 25-7 effect on performance, 25-7 ENABLE or DISABLE, 25-26 enforced with indexes, 10-25...
disable_index_block_prefetching FALSE disable index block prefetching SQL> @sp index_pre -- show parameter by sp -- show hidden parameter by spold 3: where x.indx=y.indx and ksppinm like '_%&p%'new 3: where x.indx=y.indx and ksppinm like '_%index_pre%'...
The new initialization parameter optimizer_use_invisible_indexes helps you enable or disable invisible indexes. You can make the cost optimizer take into account all invisible indexes in the database by setting the optimizer_use_ invisible_indexes parameter to true. You can do this at the session...
Oracle Textがインストール済の場合、Oracle Text固有のパラメータを使用するOracle Textのドメイン索引を再構築することができます。パラメータの詳細は、『Oracle Textリファレンス』を参照してください。 PARAMETERS句の制限事項:indexにIN_PROGRESSまたはFAILEDのマークが付いておらず、IN_PROGRESSのマ...
beforeClose(OracleConnection, Object) - Method in class oracle.jdbc.xa.client.OracleXAHeteroCloseCallback BFILE - Static variable in class oracle.jdbc.OracleTypes BFILE - Class in oracle.sql A class for Oracle specific data type BFILE. BG8MSWIN_CHARSET - Static variable in class oracle.sql...
Oracle自动将不满足约束规则的行位置(ROWID)插入到表EXCEPTIONS中 alter table employee enable validate constraint check_job exceptions into exceptions; 确定不满足约束规则的行 select job,rowid from employee where rowid in (select row_id from exceptions) for update; ...
disableSessionValidation() - Method in class org.apache.shiro.session.mgt.AbstractValidatingSessionManager disableSessionValidation() - Method in class org.apache.shiro.session.mgt.ExecutorServiceSessionValidationScheduler disableSessionValidation() - Method in interface org.apache.shiro.session.mgt.SessionVali...