Question

这是我的数据库结构：

4个文件组：PRIMARY，FileGroup201708，FileGroup201709，FileGroup201710
4个文件：File1.mdf，File201708.ndf，File201709.ndf，File201710.ndf

这是分区方案和功能：

CREATE PARTITION FUNCTION [MyFunction](datetime) 
AS RANGE RIGHT FOR VALUES (N'2017-08-01T00:00:00.000', N'2017-09-01T00:00:00.000', N'2017-10-01T00:00:00.000')

CREATE PARTITION SCHEME [MyScheme] 
AS PARTITION [MyFunction] TO ([PRIMARY], [FileGroup201708], [FileGroup201709], [FileGroup201710])

数据库中的所有表都已分区。

好吧，我决定删除201708期间的所有数据，首先执行：

TRUNCATE TABLE MyTable WITH (PARTITIONS (partition_number))

表格。在此操作之后，表中没有任何分区数据。

SELECT
    p.partition_number, fg.name, p.rows, OBJECT_NAME(p.object_id)
FROM
    sys.partitions p
INNER JOIN 
    sys.allocation_units au ON au.container_id = p.hobt_id
INNER JOIN 
    sys.filegroups fg ON fg.data_space_id = au.data_space_id
WHERE
    p.object_id = OBJECT_ID('MyTable')

上面的查询为我提供了特定文件组的0行。

现在我要删除文件和文件组，当我尝试删除文件时没有问题，但是当我尝试删除文件组时，我从SQL Server收到错误：

文件组＆＃39; FileGroup201708＆＃39;因为它不是空的而无法删除

我使用此查询检查了该文件组中是否有某些索引：

SELECT 
    OBJECT_NAME(i.[object_id]) AS [ObjectName],
    i.[index_id] AS [IndexID],
    i.[name] AS [IndexName],
    i.[type_desc] AS [IndexType],
    i.[data_space_id] AS [DatabaseSpaceID],
    f.[name] AS [FileGroup],
    d.[physical_name] AS [DatabaseFileName]
FROM 
    [sys].[indexes] i
INNER JOIN 
    [sys].[filegroups] f ON f.[data_space_id] = i.[data_space_id]
INNER JOIN 
    [sys].[database_files] d ON f.[data_space_id] = d.[data_space_id]
INNER JOIN 
    [sys].[data_spaces] s ON f.[data_space_id] = s.[data_space_id]
WHERE 
    OBJECTPROPERTY(i.[object_id], 'IsUserTable') = 1
ORDER BY 
    OBJECT_NAME(i.[object_id]), f.[name], i.[data_space_id]

但是所有行都在列＃34; FileGroup＆＃34;，PRIMARY文件组中。任何人都可以提出一些建议吗？

Answer 1

我遇到了同样的问题（无法删除文件组）。我所做的是：

DROP TABLE MyTable
DROP文件

ALTER DATABASE MyDB REMOVE FILE logical_file_name_found_in_db_properties_in_files_section
DROP分区计划MyScheme
拖放分区功能MyFunction
DROP文件组

Answer 2

这是我的解决方案：

ALTER TABLE Fisier DROP column Fisier
GO
ALTER TABLE Fisier SET (FILESTREAM_ON="NULL")
GO
ALTER TABLE FisierRev DROP column Fisier
GO
ALTER TABLE FisierRev SET (FILESTREAM_ON="NULL")
GO
ALTER TABLE Contract DROP column Fisier
GO
ALTER TABLE Contract SET (FILESTREAM_ON="NULL")
GO

USE gestiunea_inan_19Rebut
GO
DBCC SHRINKFILE (N'inan_magazin5_fs', EMPTYFILE)
GO


EXEC sp_filestream_force_garbage_collection @dbname = N'gestiunea_inan_19Rebut'

ALTER Database gestiunea_inan_19Rebut REMOVE FILE inan_magazin5_fs
GO
ALTER Database gestiunea_inan_19Rebut REMOVE FILEGROUP FILESTREAMGROUP
GO


IF COL_LENGTH('Fisier','Fisier') IS NULL
BEGIN
    ALTER TABLE Fisier ADD Fisier [varbinary](max)   NULL
END
GO
IF COL_LENGTH('FisierRev','Fisier') IS NULL
BEGIN
    ALTER TABLE FisierRev ADD Fisier [varbinary](max)   NULL
END
GO

IF COL_LENGTH('Contract','Fisier') IS NULL
BEGIN
    ALTER TABLE Contract ADD Fisier [varbinary](max)   NULL
END
GO

Answer 3

试试

GO
ALTER PARTITION FUNCTION MyFunction() MERGE RANGE (31);
GO
ALTER DATABASE [MYDB] REMOVE FILE [File31]
GO
ALTER DATABASE [MYDB] REMOVE FILEGROUP [FileGroup_31]
GO

从数据库中删除文件组和文件

3 个答案: