CREATE OR REPLACE VIEW view_name AS SELECT column1, column2, ... FROM table_name WHERE condition; 以下SQL将 "City" 列添加到 "Brazil Customers" 视图中:实例 CREATE OR REPLACE VIEW [Brazil Customers] AS SELECT CustomerName, ContactName, City FROM Customers WHERE Country = 'Brazil'; 亲自...
Drop view: Drop view view_name; 2 Rajanikant Hawaldar 32 38.8k 443.9k 5y Please refer these links for simple understanding https://www.w3schools.com/sql/sql_view.asp http://www.mysqltutorial.org/create-sql-views-mysql.aspx https://www.guru99.com/views.html1...
SQL Updating a View A view can be updated with theCREATE OR REPLACE VIEWstatement. SQL CREATE OR REPLACE VIEW Syntax CREATEORREPLACEVIEWview_nameAS SELECTcolumn1,column2, ... FROMtable_name WHEREcondition; The following SQL adds the "City" column to the "Brazil Customers" view: ...
A virtual table based on the result-set of an SQL statement A function that modifies data in the database A temporary table used for backup purposesSubmit Answer » What is an Exercise? Test what you learned in the chapter: SQL View by completing 6 relevant exercises. To try more SQL...
FROMtable_name WHEREcondition; 以下SQL 将 "City" 列添加到 "Brazil Customers" 视图: 实例 CREATEORREPLACEVIEW[Brazil Customers]AS SELECTCustomerName, ContactName, City FROMCustomers WHERECountry ='Brazil'; MySQL 删除视图 使用DROP VIEW语句删除视图。
❮ SQL Keywords ReferenceCREATE VIEWIn SQL, a view is a virtual table based on the result set of an SQL statement.The CREATE VIEW command creates a view. The following SQL creates a view that selects all customers from Brazil:Example CREATE VIEW [Brazil Customers] AS SELECT CustomerName,...
In SQL, a view is a virtual table based on the result-set of an SQL statement. A view contains rows and columns, just like a real table. The fields in a view are fields from one or more real tables in the database. You can add SQL statements and functions to a view and present...
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