Alter database enables you to change the overall characteristics of a database. These characteristics are stored in the db.opt file in the database directory. to use ALTER DATABASE, you need the ALTER ...
-- @tblnameと@tblnameを参照しているVIEWを含むクエリが実行されているかの確認SQLを作成 ...
Adds columns to, drops columns from, and changes column attributes in an existing table. Adds, modifies, and drops integrity constraints from an existing table. Restriction: You cannot use any type of ...
Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...
JSON has stolen some of XML's thunder with features such as human and machine readability, a lightweight, compact text structure and support for many software and hardware platforms. JSON (JavaScript ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
Part of the SQL Server 2022 blog series. Query Store is one of the most powerful database-scoped features in SQL Server for troubleshooting performance and improving the stability of your database ...
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