sql修改文件語句

Question

我有一個SQL問題，並嘗試了多種組合無濟於事。我已經嘗試過逗號和分號，在前兩個之後），所有三個），所有這些都只是最後一個）。沒有這樣的運氣。請幫我修復查詢。提前致謝！

我已經做了盡職調查，並在多個網站來（我只能職位，因爲reputatoin的兩個鏈接），這些： Create database using script at the default path? http://www.sqlteam.com/forums/topic.asp?topic_id=148732

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(
    NAME = location_cust_db_data1, 
    MAXSIZE = UNLIMITED, 
) 
(
    NAME = location_cust_db_data2, 
    MAXSIZE = UNLIMITED, 
) 
(
    NAME = location_cust_db_data3, 
    MAXSIZE = UNLIMITED, 
) 
GO 

---

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data1, MAXSIZE = UNLIMITED) 
MODIFY FILE (NAME = location_cust_db_data2, MAXSIZE = UNLIMITED) 
MODIFY FILE (NAME = location_cust_db_data3, MAXSIZE = UNLIMITED) 
GO 

---

這工作，但做20個文件非常繁瑣。

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(NAME = location_cust_db_data1, 
MAXSIZE = UNLIMITED) 


USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(NAME = location_cust_db_data2, 
MAXSIZE = UNLIMITED) 
GO 

USE master 
GO 
ALTER DATABASE location_cust_db 
MODIFY FILE 
(NAME = location_cust_db_data3, 
MAXSIZE = UNLIMITED) 
GO 

Answer 1

你的第三個選項是最接近的 - 每次修改必須是在一個單獨的ALTER DATABASE命令，但你可以離開了USE語句，因爲你總是從MASTER運行：

USE master 
GO 

ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data1, MAXSIZE = UNLIMITED) 
GO 

ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data2, MAXSIZE = UNLIMITED) 
GO 

ALTER DATABASE location_cust_db 
MODIFY FILE (NAME = location_cust_db_data3, MAXSIZE = UNLIMITED) 
GO 

..etc 

Answer 2

如果我有問題吧，所以這一塊會幫助你

begin 
use master; 
declare @com nvarchar(1024); 
set @com='ALTER DATABASE location_cust_db MODIFY FILE (NAME = location_cust_db_data'; 
declare @i int; 
set @i=1; 
while(@i<20) begin 
     set @com=@com+str(@i)+' ,MAXSIZE = UNLIMITED);' 
     exec (@com); 
     set @i=@i+1; 
    end 
end 

Answer 3

use [location_cust_db] 
GO 

declare csDBFiles cursor local fast_forward for 
select 
    'ALTER DATABASE [' + DB_NAME() + '] MODIFY FILE (NAME = [' + name + '], MAXSIZE = UNLIMITED)' 
from 
    sys.database_files 

open csDBFiles 

declare @stmt varchar(2000) 

fetch next from csDBFiles into @stmt 
while @@fetch_status = 0 
begin 
    print @stmt 
    print 'GO' 
    exec(@stmt) 

    fetch next from csDBFiles into @stmt 
end 

close csDBFiles 
deallocate csDBFiles 
GO