public string? ViewDefinitionSql { get; } 属性值 String 适用于 产品版本 Entity Framework Core 5.0, 6.0, 7.0, 8.0, 9.0 在GitHub 上与我们协作 可以在 GitHub 上找到此内容的源,还可以在其中创建和查看问题和拉取请求。 有关详细信息,请参阅参与者指南。 Entity Fram
VIEWDEFINITION属性(SqlFieldName = VIEW_DEFINITION)以字符串形式返回当前名称空间中所有视图的视图字段名称和视图查询表达式。例如, SELECT View_Definition FROM INFORMATION_SCHEMA.VIEWS 返回诸如“(vName,vAge)SELECT Name,Age FROM Sample.Person WHERE Age> 21”的字符串。当从Management Portal SQL执行查询界面发出...
An indexed view is a materialized view. This means the view definition has been computed and the resulting data stored just like a table. You index a view by creating a unique clustered index on it. Indexed views can dramatically improve the performance of some types of queries. Indexed views...
VIEWDEFINITION属性(SqlFieldName = VIEW_DEFINITION)以字符串形式返回当前名称空间中所有视图的视图字段名称和视图查询表达式。例如, SELECT View_Definition FROM INFORMATION_SCHEMA.VIEWS 1. 返回诸如“(vName,vAge)SELECT Name,Age FROM Sample.Person WHERE Age> 21”的字符串。当从Management Portal SQL执行查询界...
VIEWDEFINITION属性(SqlFieldName = VIEW_DEFINITION)以字符串形式返回当前名称空间中所有视图的视图字段名称和视图查询表达式。例如, 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SELECTView_DefinitionFROMINFORMATION_SCHEMA.VIEWS 返回诸如“(vName,vAge)SELECT Name,Age FROM Sample.Person WHERE Age> 21”的...
A view is expanded when the view definition replaces the view name in the query text. This query hint virtually disallows direct use of indexed views and indexes on indexed views in the query plan. Note The indexed view remains condensed if there's a direct reference to the view...
IfGROUP BYis present, the VIEW definition must containCOUNT_BIG(*)and must not containHAVING. TheseGROUP BYrestrictions are applicable only to the indexed view definition. A query can use an indexed view in its execution plan even if it doesn't satisfy theseGROUP BYrestrictions. ...
In the query window, enter the following statements that use thesys.sql_modulescatalog view. Change the database name and stored procedure name to reference the database and stored procedure that you want. SQL USEAdventureWorks2022; GOSELECT[definition]FROMsys.sql_modulesWHEREobject_id = (OBJECT...
A view is expanded when the view definition replaces the view name in the query text. This query hint virtually disallows direct use of indexed views and indexes on indexed views in the query plan. Note The indexed view remai...
VIEW DEFINITION 允许被授权者访问元数据。 REFERENCES 表的REFERENCES 权限是创建引用该表的外键约束时所必需的。 对象的 REFERENCES 权限是使用引用该对象的 WITH SCHEMABINDING 子句创建 FUNCTION 或 VIEW 时所必需的。 SQL Server 权限图表 下图显示了权限以及它们彼此之间的关系。 多次列出了某些更高级别的权限(如 ...