由於專案需要，每次執行case的時候都需要建立資料庫。雖然每次執行結束都會刪除，但是不保證每次都能刪除成功（這裡有許多原因，我就不列舉了）。所以我寫了個指令碼去批量刪除資料庫。首先為確保我們的資料庫是有用的，不被錯刪除的。所以就必須先備份在刪除。
備份資料庫：
declare @name varchar(50) -- database name
declare @path varchar(256) -- path for backup files
declare @filename varchar(256) -- filename for backup
declare @filedate varchar(20) -- used for file name
set @path = 'd:\abc\backup\'
select @filedate = convert(varchar(20),getdate(),112)
declare db_cursor cursor for
select name
from master.dbo.sysdatabases
where name in ('e1db_abc','scheduler')
open db_cursor
fetch next from db_cursor into @name
while @@fetch_status = 0
begin
set @filename = @path + @name + '_' + @filedate + '.bak'
backup database @name to disk = @filename
fetch next from db_cursor into @name
end
close db_cursor
deallocate db_cursor
刪除資料庫：
方法1：
declare @path varchar(256) -- path for backup files
declare @filename varchar(256) -- filename for backup
declare @filedate varchar(20) -- used for file name
set @path = 'd:\backup\'
select @filedate = convert(varchar(20),getdate(),112)
declare db_cursor cursor for
select name
from master.dbo.sysdatabases
where name not in ('master','model','msdb','tempdb','reportserver'
open db_cursor
declare @databasename varchar(50) -- database name
declare @databasecount int =0
fetch next from db_cursor into @databasename
while @@fetch_status = 0
begin
declare @statement nvarchar(50)
print 'dropping databse: '+@databasename
exec('
use master
alter database '+@databasename+' set single_user with rollback immediate
drop database '+@databasename)
set @databasecount=@databasecount+1
fetch next from db_cursor into @databasename
end
print 'dropped databse count: '+convert(varchar(12),@databasecount )
close db_cursor
deallocate db_cursor
方法2：
declare @dbtodelete table(name varchar(50))
declare @databasename varchar(100)
insert into @dbtodelete values('abc')
insert into @dbtodelete values('def')
insert into @dbtodelete values('gh')
insert into @dbtodelete select name from master..sysdatabases where name like 'abc%'
while exists(select name from @dbtodelete)
begin
select top 1 @databasename=name from @dbtodelete
if exists(select * from sys.databases where name = @databasename)
begin
print 'dropping databse: '+@databasename
exec('
use master
alter database '+@databasename+' set single_user with rollback immediate
drop database '+@databasename)
enddelete from @dbtodelete where name = @databasename
end
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