ALTER DATABASE MODIFY FILEGROUP [myfilegroup] AUTOGROW_ALL_FILES

Question

我想将数据库中的所有文件组更改为 AutoGrow_all_Files，但前提是它当前是 AutoGrow_Single_File，如下所示：

ALTER DATABASE mydatabase MODIFY FILEGROUP [myfilegroup] AUTOGROW_ALL_FILES

如何检查此数据库属性？

Answer 1

sys.filegroups包含一列is_autogrow_all_files，指示是否已针对相关文件组打开该设置。

这应该显示您可以运行的更改数据库语句的列表：

DECLARE @cmd NVARCHAR(2000);
DECLARE cur CURSOR LOCAL FORWARD_ONLY STATIC 
FOR
SELECT '
select ''ALTER DATABASE ' + QUOTENAME(d.name) + ' MODIFY FILEGROUP '' + QUOTENAME(ds.name) + '' AUTOGROW_ALL_FILES;''
from ' + QUOTENAME(d.name) + '.sys.data_spaces ds
    INNER JOIN ' + QUOTENAME(d.name) + '.sys.filegroups fg ON ds.data_space_id = fg.data_space_id
WHERE fg.is_autogrow_all_files = 0;
'
FROM sys.databases d;
OPEN cur;
FETCH NEXT FROM cur INTO @cmd;
WHILE @@FETCH_STATUS = 0
BEGIN
    PRINT (@cmd);
    FETCH NEXT FROM cur INTO @cmd;
END
CLOSE cur;
DEALLOCATE cur;

该代码将显示一组可以为实例上的每个数据库运行的语句，以修改每个文件组。

生成的语句示例是：

select 'ALTER DATABASE [msdb] MODIFY FILEGROUP ' + QUOTENAME(ds.name) + ' AUTOGROW_ALL_FILES;'
from [msdb].sys.data_spaces ds
    INNER JOIN [msdb].sys.filegroups fg ON ds.data_space_id = fg.data_space_id
WHERE fg.is_autogrow_all_files = 0;