脚本汇总

Posted 2021-03-20 gered

【1】文件与表数据查看

【1.1】（当前库）表行数、空间使用情况

SELECT 
    t.NAME AS TableName,
    s.Name AS SchemaName,
    p.rows AS RowCounts,
    SUM(a.total_pages) * 8 AS TotalSpaceKB, 
    CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS 总共占用空间,
    SUM(a.used_pages) * 8 AS UsedSpaceKB, 
    CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB, 
    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB,
    CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB
FROM  sys.tables t
INNER JOIN   sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN   sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN   sys.allocation_units a ON p.partition_id = a.container_id
LEFT  JOIN   sys.schemas s ON t.schema_id = s.schema_id
WHERE 
    t.NAME NOT LIKE ‘dt%‘ 
    AND t.is_ms_shipped = 0
    AND i.OBJECT_ID > 0
GROUP BY  t.Name, s.Name, p.Rows
ORDER BY  [总共占用空间] desc
--实时数据查看，核心DMV：sys.dm_db_partition_stats

【1.2】查看当前库的文件情况（同步）

SELECT a.name [文件名称] ,cast(a.[size]*1.0/128 as decimal(12,1)) AS [文件设置大小(MB)] ,
    CAST( fileproperty(s.name,‘SpaceUsed‘)/(8*16.0) AS DECIMAL(12,1)) AS [文件所占空间(MB)] ,
    CAST( (fileproperty(s.name,‘SpaceUsed‘)/(8*16.0))/(s.size/(8*16.0))*100.0 AS DECIMAL(12,1)) AS [所占空间率%] ,
    CASE WHEN A.growth =0 THEN ‘文件大小固定，不会增长‘ ELSE ‘文件将自动增长‘ end [增长模式] ,CASE WHEN A.growth > 0 AND is_percent_growth = 0 
    THEN ‘增量为固定大小‘ WHEN A.growth > 0 AND is_percent_growth = 1 THEN ‘增量将用整数百分比表示‘ ELSE ‘文件大小固定，不会增长‘ END AS [增量模式] ,
    CASE WHEN A.growth > 0 AND is_percent_growth = 0 THEN cast(cast(a.growth*1.0/128as decimal(12,0)) AS VARCHAR)+‘MB‘ 
    WHEN A.growth > 0 AND is_percent_growth = 1 THEN cast(cast(a.growth AS decimal(12,0)) AS VARCHAR)+‘%‘ ELSE ‘文件大小固定，不会增长‘ end AS [增长值(%或MB)] ,
    a.physical_name AS [文件所在目录] ,a.type_desc AS [文件类型] 
FROM sys.database_files a 
INNER JOIN sys.sysfiles AS s  ON a.[file_id]=s.fileid 
LEFT JOIN sys.dm_db_file_space_usage b ON a.[file_id]=b.[file_id] ORDER BY a.[type]

【1.3】查看所有数据库文件情况（异步）

SELECT       database_id                                AS DataBaseId 
            ,DB_NAME(database_id)                       AS DataBaseName 
            ,Name                                       AS LogicalName 
            ,type_desc                                  AS FileTypeDesc 
            ,Physical_Name                              AS PhysicalName 
            ,State_Desc                                 AS StateDesc 
            ,CASE WHEN max_size = 0  THEN N‘不允许增长‘
                  WHEN max_size = -1 THEN N‘自动增长‘
             ELSE LTRIM(STR(max_size * 8.0 / 1024 / 1024, 14, 2))+ ‘G‘
             END  AS MaxSize 
            ,CASE WHEN is_percent_growth = 1
                 THEN RTRIM(CAST(Growth AS CHAR(10))) + ‘%‘
                 ELSE RTRIM(CAST(Growth*8.0/1024 AS CHAR(10))) + ‘M‘
            END                                          AS Growth 
            ,Is_Read_Only                                AS IsReadOnly 
            ,Is_Percent_Growth                           AS IsPercentGrowth 
            ,CAST(size * 8.0 / 1024 / 1024 AS DECIMAL(8, 4)) AS [Size(GB)]
FROM     sys.master_files
--WHERE name =tempdb
ORDER BY 1

【1.4】查看堆表数量超过10W行的

select * from (
SELECT tables.NAME, 
       (SELECT rows 
        FROM   sys.partitions 
        WHERE  object_id = tables.object_id 
               AND index_id = 0 -- 0 is for heap 
               -- 1 is for clustered index 
                And rows >=100000
       )AS numberofrows 
FROM   db_tank.sys.tables tables 
WHERE  Objectproperty(tables.object_id, N‘TableHasClustIndex‘) = 0
)t where numberofrows is not null