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...
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 ] [ SCHE...
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: Example CREATEORREPLACEVIEW[Brazil Customers]AS ...
Transact-SQL 语法约定 语法 SQL Server 和 Azure SQL 数据库 的语法。 syntaxsql CREATE[ORALTER]VIEW[schema_name. ]view_name[ (column [ ,...n ] ) ] [WITH<view_attribute>[ ,...n ] ]ASselect_statement[WITHCHECKOPTION] [ ; ]<view_attribute>::={ [ENCRYPTION] [SCHEMABINDING] [VIEW_META...
SQL CREATE VIEW 语法 CREATE VIEW view_name AS SELECT column_name(s) FROM table_name WHERE condition 注释:视图总是显示最近的数据。每当用户查询视图时,数据库引擎通过使用 SQL 语句来重建数据。 SQL CREATE VIEW 实例 可以从某个查询内部、某个存储过程内部,或者从另一个视图内部来使用视图。通过向视图添加...
Read more how tocreate view in SQL. Replace View Statement The REPLACE VIEW is used to change the definition of a view. The CREATE VIEW and REPLACE VIEW keywords are used together. The syntax is following: Create or replace View view_name ...
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 ] } ...
Creates a new view. 注意 The Microsoft Access database engine does not support the use of CREATE VIEW, or any of the DDL statements, with non-Microsoft Access database engine databases. Syntax CREATE VIEW view [(field1[, field2[, …]])] AS selectstatement The...
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...
You can useHive create viewto create a virtual table based on the result-set of a complex SQL statement that may havemultiple table joins. The CREATE VIEW statement lets you create a shorthand abbreviation for a more complex and complicated query. ...