oracle rename table语句 嘿,你知道吗,在数据库的世界里,有个超厉害的东西叫做Oracle啊!这里面有个特别实用的操作,就是rename table语句呢!比如说,你有个表叫“旧名字表”,哎呀,这名字太难听了,你就可以用rename table语句把它改成一个响亮的“新名字表”呀!这就好像你有件旧衣服,你觉得它款式不喜欢了,就...
create table scott.student_info ( sno number(3) constraint pk_si_sno primary key, sname varchar2(30), sex varchar2(2), age number(3) ); 1. 2. 3. 4. 5. 6. 查询索引信息:(主键:自动 unique 索引:唯一性约束) select * from dba_indexes t where t.owner = 'SCOTT' and t.table_nam...
需要注意的是,主键的index不需要再额外创建。 Oracle enforces a UNIQUE key or PRIMARY KEY integrity constraint on a table by creating a unique index on the unique key or primary key. This index is automatically created by Oracle when the constraint is enabled. 设置Dependency 依赖对象重建:这里重建...
Use the RENAME statement to rename a table, view, sequence, or private synonym.Oracle Database automatically transfers integrity constraints, indexes, and grants on the old object to the new object. Oracle Database invalidates all objects that depend on the renamed object, such as views, ...
51CTO博客已为您找到关于oracle中rename表的相关内容,包含IT学习相关文档代码介绍、相关教程视频课程,以及oracle中rename表问答内容。更多oracle中rename表相关解答可以来51CTO博客参与分享和学习,帮助广大IT技术人实现成长和进步。
A convenient way to rename tables in Oracle is to use the RENAME command. For example, SQL> create table kaleyc.drop_me 2 ( 3 x char 4 ); Table KALEYC.DROP_ME created. SQL> rename drop_me to drop_me2; Table renamed. However, if the object that you’re trying to rename does no...
selectmaster,log_table fromuser_mview_logs a wheremasterin('DH_T'); 备注: 我们可能还须要关注表字段类型,那些LOB、long字段都是我们重建表是须要考虑的 还有就是重建表是我们可能都会使用parallel+nologging模式来加高速度,一定要记得在重建完毕后将这些属性改动回来。(曾经遇到过一个案例,未将parallel属性改...
1、为了确保所有表字段、字段类型、长度完全一样，我一般不建议使用CTAS方式来重建表。2、一般我都是使用下面两种方法中的一个，来抽取表的定义 select dbms_metadata.get_ddl('TABLE',upper('&i_table_name'),upper('&i_owner')) from dual;使用PL/SQL developer类似这样的工具，来查看表定义语句 3、重新建...
中断不会爆任何错误，rename和drop不会被拒绝，0155错误是肯定会发生的，因为数据不一致了
Oracle SQL Rename Table To rename a table inOracle SQL, use the ALTER TABLE statement, in the same way as MySQL and PostgreSQL: ALTERTABLEold_nameRENAMETOnew_name; You simply add in your current table name and the new table name and run the command. There’s no need to specify the sc...