Views can also be used when you copy data to and from SQL Server to improve performance and to partition data. Types of views Besides the standard role of basic user-defined views, SQL Server provides the following types of views that serve special purposes in a database. Indexed views An...
TheALTER VIEWsyntax was introduced in SQL Server 7.0. In prior versions of SQL Server, you had to drop a view and then re-create it. The advantage ofALTER VIEWis that only the definition of the view is changed. If the view was dropped and re-created, a new object ID would be genera...
Set operatorsUNION,UNION ALL,EXCEPT,INTERSECTUseOR,AND NOT, andANDin theWHEREclause respectively ORDER BYORDER BY ORDER BYOFFSET Source column typePossible alternative Deprecated large value column types (text,ntext, andimage)Migrate columns tovarchar(max),nvarchar(max), andvarbinary(max)respectively....
To retrieve the columns, data types, and metadata such as owner, location, creation time, and refresh status for a materialized view, use DESCRIBE EXTENDED. To submit a DESCRIBE statement, use the SQL editor in the Azure Databricks UI, the Databricks SQL CLI, or the Databricks SQL API. ...
We recommend against using the syntax SELECT * FROM sys.<catalog_view_name> in production code because the number of columns returned might change and break your application. The catalog views in SQL Server have been organized into the following categories: Always On Availability Groups Cata...
Set operatorsUNION,UNION ALL,EXCEPT,INTERSECTUseOR,AND NOT, andANDin theWHEREclause respectively ORDER BYORDER BY ORDER BYOFFSET Source column typePossible alternative Deprecated large value column types (text,ntext, andimage)Migrate columns tovarchar(max),nvarchar(max), andvarbinary(max)respectively....
We recommend against using the syntax SELECT * FROM sys.<catalog_view_name> in production code because the number of columns returned might change and break your application. The catalog views in SQL Server have been organized into the following categories: Always On Availability Groups Catalog ...
2.When any type of join is processed, PROC SQL starts by generating a Cartesian product, which contains all possible combinations of rows from all tables.In all types of joins, PROC SQL generates a Cartesian product first, and then eliminates rows that do not meet any subsetting criteria tha...
gsql:Oracle_Functions.sql:1035: NOTICE: | result_type | case_count | start_time | complete_time | gsql:Oracle_Functions.sql:1035: NOTICE: |---|---|---|---| gsql:Oracle_Functions.sql:1035: NOTICE: | PASSED | 387 | 2021-11-25 09:42:20.016619 | 2021-11-25 09:42:52.127892 |...
The account of the user who created the view, in'user_name'@'host_name'format. SECURITY_TYPE The viewSQL SECURITYcharacteristic. The value is one ofDEFINERorINVOKER. CHARACTER_SET_CLIENT The session value of thecharacter_set_clientsystem variable when the view was created. ...