Oracle CREATE VIEW examples Let’s look at some examples of creating new views based on the tables in the sample database. A) Creating a view example See the following employees table from the sample database. The following statement creates a view named employee_yos based on the employees ...
Oracle Databaseでは、ビュー制約を適用していません。制限事項を含むビュー制約の詳細は、「ビュー制約」を参照してください。 関連項目: 「制約付きのビューの作成例:」 object_view_clause object_view_clauseを使用すると、オブジェクト型にビューを定義できます。
create or replace view v_test as select * from test where age=10; create or replace: 如果view存在就覆盖,不存在才创建。 删除视图: drop view 视图名; 权限控制: 要在您自己的模式中创建视图,您必须具有CREATE VIEW系统特权。 要在其他用户的模式中创建视图,您必须具有CREATE ANY VIEW系统特权。 包含该...
Oracle Database Development Guidefor detailed information about editioning views CREATE EDITIONfor information about editions, including an example of an editioning view EDITIONABLE | NONEDITIONABLE Use these clauses to specify whether the view becomes an editioned or noneditioned object if editioning ...
创建ORACLE视图时报错ORA-01031,表明insufficient privileges (一)现象说明 用户为新建用户test 授予角色:HR_ALL 授予HR_ALL的系统权限是:grant connect,resource to HR_ALL; 授予HR_ALL的对象权限是:无 用test登陆 create view test01 as select * from hr.employees; ...
如果CREATE VIEW语句指定了此功能，则可以为视图发出INSERT、UPDATE和DELETE语句。要允许通过视图进行更新，...
普通租户(Oracle 模式) SQL 语句 DDL CREATE MATERIALIZED VIEW 更新时间:2025-01-17 14:56:41 描述 该语句用来创建物化视图。 物化视图是一种特殊类型的数据库对象,它存储查询结果的副本,并定期刷新(也可以手动刷新)以保持数据的最新状态。物化视图可以包含聚合,连接和子查询等操作,并且可以被索引和分区,以进一步...
SQL> CREATE OR REPLACE VIEW SCOTT.VIEW_1 AS SELECT * FROM sh.CUSTOMERS; CREATE OR REPLACE VIEW SCOTT.VIEW_1 AS SELECT * FROM sh.CUSTOMERS * 第1 行出现错误: ORA-01031: 权限不足 处理办法: GRANT CREATE ANY TABLE TO scott; GRANT SELECT ANY TABLE TO scott; ...
oracle create view 创建视图 (转) SQL> CREATE VIEW TOP_EMP (EMPLOYEE_ID,EMPLOYEE_NAME,SALARY) AS SELECT empno ,ename ,salary FROM emp WHERE salary >2000 如果在创建的视图包含错误在正常情况下,视图将不会被创建。但如果你需要创建一个带错误的视图必须在CREATE VIEW语句中带上FORCE选项。如: CREATE ...
*/ CREATE EXTERNAL DATA SOURCE external_data_source_name WITH ( LOCATION = 'oracle://<server address>[:<port>]', -- PUSHDOWN = ON | OFF, CREDENTIAL = credential_name) /* * LOCATION: Oracle table/view in '<database_name>.<schema_name>.' format. Note this may be case sensitive ...