Note: Not all SQL types support this. (e.g. can be done in Oracle and DBT, but not PostgreSQL.)To create a materialized view, add the MATERIALIZED keyword:CREATE MATERIALIZED VIEW myView AS [Query]; To refresh the view manually use the following command:REFRESH MATERIALIZED VIEW [view nam...
Inserting values in an existing view: Insert into View_Name values(48,'Ajay','India'); Updating values of an existing view: update View_Name set Name='Pankaj'where empId=10 Deleting a View: To delete a view use the drop view command. drop view <view name>...
CREATE CONNECTION Command CREATE CURSOR - SQL Command CREATE DATABASE Command CREATE FORM Command CREATE FROM Command CREATE LABEL Command CREATE MENU Command CREATE PROJECT Command CREATE QUERY Command CREATE REPORT - Quick Report Command CREATE REPORT Command CREATE SQL VIEW Command CREATE TABLE - SQL...
The CREATE OR REPLACE VIEW command updates a view.The following SQL adds the "City" column to the "Brazil Customers" view:Example CREATE OR REPLACE VIEW [Brazil Customers] AS SELECT CustomerName, ContactName, City FROM Customers WHERE Country = "Brazil"; Try it Yourself » ...
In this tutorial you will learn how to create, update, and delete a view using SQL.Creating Views to Simplify Table AccessA view is a virtual table whose definition is stored in the database. But, unlike tables, views do not actually contain any data. Instead, it provides a way to ...
在 table_or_view_name 后的括号中,按排序优先级列出组合索引中要包括的列。 一个组合索引键中最多可组合 32 列。 组合索引键中的所有列必须在同一个表或视图中。 对于聚集索引,组合索引值允许的最大大小为 900 字节,对于非聚集索引则为 1,700 字节。 对于 SQL 数据库 和 SQL Server 2016 (13.x) ...
CREATE SQL VIEW Command CREATE TABLE - SQL Command DELETE - SQL Command INSERT - SQL Command SELECT - SQL Command SQL Pass Through Foundation Class SQLCANCEL( ) Function SQLCOLUMNS( ) Function SQLCOMMIT( ) Function SQLCONNECT( ) Function SQLDISCONNECT( ) Function SQLEXEC( ) Function SQLGETPRO...
In this part of learning the CREATE VIEW SQL statement, we learned how to use the ALTER VIEW command to modify an existing view and change the output. I promised more in the first part, but rather than making this a long and boring article, we’ll continue our journey in the next one...
CREATE TABLE - SQL CommandArticle 01/19/2017 1 contributor In this article Syntax Arguments Remarks Driver Remarks See Also Creates a table having the specified fields.The Visual FoxPro ODBC Driver supports the native Visual FoxPro language syntax for this command. For driver-specific ...
If you create an aggregate view, you cannot perform an aggregate SELECT on it. Example create view alerts.myview persistent as select Severity, LastOccurrence, Summary from alerts.status order by Severity, LastOccurrence; Parent topic:ObjectServer SQL command reference...