用其他数据库的副本替换数据库

Question

作为我们测试过程的一部分，我正在尝试自动执行以下操作：

删除数据库 B。
创建数据库 A 的备份
从数据库 A 的备份重新创建数据库 B

我曾希望这样的事情会起作用RESTORE DATABASE DatabaseB FROM DISK = 'c:\temp\DatabaseA.bak' WITH REPLACE，但结果是想要覆盖 DatabaseA 的现有 ldf 和 mdf 文件。

Azure 的 SQL 服务器似乎具有此功能：CREATE DATABASE DatabaseB AS COPY OF DatabaseA，但我们的本地服务器不支持此功能。

有没有简单（干净）的方法来做到这一点？

Answer 1

根据@Larnu 的反馈和更多研究，我得出以下结论：

USE Master

--Drop the existing testing database
IF DB_ID('DatabaseB') IS NOT NULL
BEGIN
    ALTER DATABASE DatabaseB 
    SET SINGLE_USER 
    WITH ROLLBACK IMMEDIATE

    DROP DATABASE [DatabaseB]
END


--create a backup of the database we want
BACKUP DATABASE DatabaseA TO DISK = 'c:\temp\DatabaseA.bak'
WITH CHECKSUM, COPY_ONLY, FORMAT, INIT, STATS = 10;

-- List the files (for dev purposes only, any file listed here needs a MOVE statement below, you may have user and memory files as well as db and logs)
--RESTORE FILELISTONLY FROM DISK = 'c:\temp\Database.bak'

-- restore the backup top
RESTORE
DATABASE [DatabaseB]  
FROM DISK = 'c:\temp\DatabaseA.bak'
WITH CHECKSUM,
MOVE 'DatabaseA' TO 'c:\temp\DatabaseB.mdf',
MOVE 'DatabaseA_log' TO 'c:\temp\DatabaseB.ldf',
RECOVERY, REPLACE, STATS = 10;

用其他数据库的副本替换数据库

Replace Database WIth Copy Of Other Database

sql

sql-server

database-administration