Views and the WITH CHECK OPTION. For views defined with WITH CHECK OPTION, each row you insert into the view must conform to the definition of the view. If the view you name is dependent on other views whose definitions include WITH CHECK OPTION, the inserted rows must also conform to the...
SQL-92 syntax provides the INNER, LEFT OUTER, RIGHT OUTER, FULL OUTER, and CROSS join operators. UNION and JOIN within a FROM clause are supported within views and in derived tables and subqueries. A self-join is a table that is joined to itself. Insert or update operations that are ...
Common table expressions (CTEs) allow you to write named table expressions that persist for only the duration of a query. In their simple form, they provide a mixed functionality of views and derived tables. Like views, the CTE can be referred to more than once in the outer query, and li...
After you restore the sample database to an instance of SQL Server, extract the samples file, and then open theJSON Sample Queries procedures views and indexes.sqlfile from the JSON folder. Run the scripts in this file to reformat some existing data as JSON data, test sample queries and re...
indexes aren't supported.UnlessNOINDEXis specified,DBCC CHECKDBorDBCC CHECKTABLEperforms both physical and logical consistency checks on a single table and on all its nonclustered indexes. However, on XML indexes, spatial indexes, and indexed views, only physical consistency checks are performed by ...
those indexed views have to be updated as well during DML execution. As a result, DML query performance can degrade significantly, or in some cases, a query plan can't even be produced. In such scenarios, test your DML queries before production use, analyze the query plan and tune/simplify...
Linked Server and distributed queries Machine Learning Services (in database) Queries, stored procedures, views, functions, triggers (T-SQL) Replication, Change Tracking, Change Data Capture Startup, shutdown, restart issues (instance or database) ...
Create a view and change the data types of some variables Create a writable view in SQL DB create an index on just the date part of a datetime field Create Database Failed - Primary file must be at least 3 MB ... create dynamic tables with select * into using dynamic table names crea...
To close a window that has focus (such as the SQL Developer main window, a wizard or dialog box, or the Help Center) and any of its dependent windows, you can press Alt+F4. The main toolbar (under the menus) contains Icons to perform various actions, which by default include the fol...
The types of intent locks are: intent shared (IS), intent exclusive (IX), and shared with intent exclusive (SIX). Schema Used when an operation dependent on the schema of a table is executing. The types of schema locks are: schema modification (Sch-M) and schema stability (Sch-S). ...