Finally, drop the view sales_employee_contacts: DROP VIEW IF EXISTS sales_employee_contacts;Code language: SQL (Structured Query Language) (sql) Summary Use the Oracle DROP VIEW statement to drop a view from a database. Use the IF EXISTS optional to conditionally drop a view only if it ...
To drop a table and its data from the Oracle Database, you use the DROP TABLE statement: DROP TABLE table_name [CASCADE CONSTRAINTS | PURGE];Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of the table you want to remove in the DROP TABLE...
The Drop View Tool allows users select a view to be dropped. The tool then generates the SQL to drop the view. Listed below is an example SQL statement generated by the Drop View Tool. DROP VIEW public.employee_view The following are links to information about the Drop View tool for spec...
DROP FUNCTION statement DROP INDEX statement DROP PROCEDURE statement DROP ROLE statement DROP SCHEMA statement DROP SEQUENCE statement DROP SYNONYM statement DROP TABLE statement DROP TRIGGER statement DROP TYPE statement DROP VIEW statement Parent topic: Statements ...
Create or replace View view_name As Select * from base_table Here: Create or replace View:These keywords serve to create or replace the existing View. When we run the create or the replace view statement, MySQL checks whether it exists in the database. If the View exists, it changes the...
DROP VIEW [IF EXISTS] view_name [, view_name] ... [RESTRICT | CASCADE] DROP VIEW removes one or more views. You must have the DROP privilege for each view. If any views named in the argument list do not exist, the statement returns an error indicating by name which nonexisting vie...
ErrorCode = 600, SQLState = HY000, Details = ORA-00600: internal error code, arguments: -5235, The table 'TEST_USER.TEST_VIEW' is read only so it cannot execute this statement 复现场景如下: 使用TEST_USER 登录 oracle#oio_cluster 租户。 obclient -hxxx -P2883 -uTEST_USER@oracle#oio_...
This Oracle tutorial explains how to use the Oracle DROP USER statement with syntax and examples.Description The DROP USER statement is used to remove a user from the Oracle database and remove all objects owned by that user.Syntax The syntax for the DROP USER statement in Oracle/PLSQL is:...
This Oracle tutorial explains how to use the DROP TRIGGER statement to drop a trigger in Oracle with syntax and examples. Once you have created a trigger in Oracle, you might find that you need to remove it from the database.
创建视图:create view viewname as select statement删除视图:drop view viewname 1. **完整性判断**:题目给出完整的视图操作语句,包含核心语法要素: - 创建视图:包含`create view`关键字、视图名称(viewname)、`as`连接符、select子查询(select statement) - 删除视图:包含`drop view`关键字、视图名称(viewname...