In this case you can write a cursor to collect the database names and run a RESTORE DATABASE command for each database in a one-by-one fashion.
The reason for this is plain and simple; they are the best way to slow down an application.
This is because SQL Server, like any good relational database management system (RDBMS), is optimized for set-based operations.
Cursors facilitate subsequent processing in conjunction with the traversal, such as retrieval, addition and removal of database records.
The database cursor characteristic of traversal makes cursors akin to the programming language concept of iterator.
He is driven by the love of technology and a desire to solve complex problems creatively.
CREATE TABLE employee 2 (employee_id NUMBER(7), 3 last_name VARCHAR2(25), 4 first_name VARCHAR2(25), 5 userid VARCHAR2(8), 6 start_date DATE, 7 comments VARCHAR2(255), 8 manager_id NUMBER(7), 9 title VARCHAR2(25), 10 department_id NUMBER(7), 11 salary NUMBER(11, 2), 12 commission_pct NUMBER(4, 2) 13 ); Table created.
SQL Server cursors are notoriously bad for performance.
In any good development environment people will talk about cursors as if they were demons to be avoided at all costs.
However, other than for backwards compatibility they can still serve us well in the right situations.