create view语句是将某个查询数据的定义保留下来,以便随时调用,这就是所谓的视图。视图本身不存储查询结果,只是一个定义。 Syntax:CREATE[ORREPLACE] [ALGORITHM={UNDEFINED|MERGE|TEMPTABLE}] [DEFINER={user|CURRENT_USER}] [SQLSECURITY { DEFINER|INVOKER }]VIEWview_name [(column_list)]ASselect_statement [WI...
A view is created with theCREATE VIEWstatement. CREATE VIEW Syntax CREATEVIEWview_nameAS SELECTcolumn1,column2, ... FROMtable_name WHEREcondition; Note:A view always shows up-to-date data! The database engine recreates the view, every time a user queries it. ...
Syntax SQL Server 和 Azure SQL Database 的語法。 syntaxsql 複製 CREATE [ OR ALTER ] VIEW [ schema_name . ] view_name [ (column [ ,...n ] ) ] [ WITH <view_attribute> [ ,...n ] ] AS select_statement [ WITH CHECK OPTION ] [ ; ] <view_attribute> ::= { [ ENCRYPTION ]...
syntaxsql CREATE[ORALTER]VIEW[schema_name. ]view_name[ (column_name[ ,...n ] ) ] [WITH<view_attribute>[ ,...n ] ]AS[;]<view_attribute>::={ [SCHEMABINDING] }::=[WITH<common_table_expression>[ ,...n ] ]SELECT 参数 OR ALTER 适用范围:Azure SQL 数据库、SQL Server...
SQL CREATE OR REPLACE VIEW Syntax CREATE OR REPLACE VIEW view_name AS SELECT column_name(s) FROM table_name WHERE condition 现在,我们希望向 "Current Product List" 视图添加 "Category" 列。我们将通过下列 SQL 更新视图: CREATE VIEW [Current Product List] AS ...
Basic knowledge of __SQL syntax` and commands. Access to an existing SQL Server database or permissions to create a new one.For installation and establishing connection you can read our article SQL Server-How to create a database?What is a View?
Transact-SQL Syntax Conventions Syntax CREATE VIEW [ schema_name . ] view_name [ (column [ ,...n ] ) ] [ WITH <view_attribute> [ ,...n ] ] AS select_statement [ WITH CHECK OPTION ] [ ; ] <view_attribute> ::= { [ ENCRYPTION ] [ SCHEMABINDING ] [ VIEW_METADATA ] } ...
CREATE MATERIALIZED VIEW 项目 2025/01/30 4 个参与者 反馈 本文内容 语法 parameters 所需的权限 行筛选器和列掩码 显示另外 3 个 适用于:Databricks SQL 具体化视图是预计算结果可用于查询的视图,并且可以更新以反映输入中的更改。 每次刷新具体化视图时,都会重新计算查询结果,以反映上游数据集中的变化...
syntaxsql 複製 CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS return_data_type [ WITH <function_option> [ , ...n ] ]...
CREATE VIEW must be the first statement in a query batch. A view can be created only in the current database. A view can have a maximum of 1,024 columns. When querying through a view, the Database Engine checks to make sure that all the database objects referenced anywhere in the sta...