Question

以下代码将显示数据库中每个表的大小

USE DatabaseName
GO

CREATE TABLE #temp (
      table_name SYSNAME
    , row_count INT
    , reserved_size VARCHAR(50)
    , data_size VARCHAR(50)
    , index_size VARCHAR(50)
    , unused_size VARCHAR(50)
)
SET NOCOUNT ON
INSERT #temp
EXEC sp_MSforeachtable 'sp_spaceused ''?'''
SELECT a.table_name
     , a.row_count
     , COUNT(*) AS col_count
     , a.data_size
FROM #temp a
INNER JOIN INFORMATION_SCHEMA.columns b ON a.table_name COLLATE database_default
    = b.table_name COLLATE database_default
GROUP BY a.table_name
       , a.row_count
       , a.data_size
ORDER BY CAST(REPLACE(a.data_size, ' KB', '') AS INTEGER) DESC
DROP TABLE #temp

有没有办法通过过滤行来查找所有空间表。就像我有外键Company ID在所有表格中，如果我想知道公司占用的空间，我是可能的

---示例---

Purchase Table :

P_ID   P_Description   P_Price    P_CompanyID
------------------------------------------
1         Mobile        100          1 
2         Laptop        2100         1
3         Table          50          2

Sale table:

S_ID   s_Description   S_Price    S_CompanyID
------------------------------------------
1         Mobile        110          1 
2         Laptop        2200         1
3         Table          100         2

OutPut table:

Table         Size      Company  
--------------------------------- 
Purchase      1.5MB        1 
Sale          1.5MB        1         
Purchase      1MB          2           
Sale          1MB          2

Answer 1

我根据我的要求找到了解决方案。感谢Devart帮助。

DECLARE @tblNAME NVARCHAR(50) = ''
DECLARE @colNAME NVARCHAR(50) = ''
DECLARE @SQL NVARCHAR(MAX) = ''
DECLARE CUR CURSOR FOR
SELECT NAME
FROM   SYS.TABLES
WHERE  TYPE = 'U'
     AND SCHEMA_ID = 1
     AND name NOT LIKE 'tt_%'

OPEN CUR

FETCH NEXT FROM CUR INTO @tblNAME

WHILE @@FETCH_STATUS = 0
BEGIN

   SELECT @colNAME= c.name
        FROM sys.columns c,sys.objects o
        WHERE c.[object_id] = o.[object_id]
            AND c.name like '%_CompanyID' And o.name=@tblNAME
        if @colNAME is null or @colNAME =''
            begin 
             FETCH NEXT FROM CUR INTO @tblNAME
            end
        Else
        Begin    

             -- PRINT @tblNAME
              --Print '---'+ @colNAME



              SELECT @SQL += '

IF OBJECT_ID(''tt_' + o.name + ''') IS NOT NULL
DROP TABLE [tt_' + o.name + ']

SELECT *
INTO [tt_' + o.name + ']
FROM ' + QUOTENAME(SCHEMA_NAME(o.[schema_id])) + '.' + QUOTENAME(o.name) + '
WHERE '+@colNAME+' =10' -- your condition
FROM sys.objects o
WHERE o.[type] = 'U'
    AND o.name NOT LIKE 'tt_%'
    AND o.name LIKE @tblNAME
    AND o.is_ms_shipped = 0
    AND EXISTS(
        SELECT *
        FROM sys.columns c
        WHERE c.[object_id] = o.[object_id]
            AND c.name like '%_CompanyID' -- your column
        )



          Set @colNAME=null
              FETCH NEXT FROM CUR INTO @tblNAME

             end
  END

CLOSE CUR

DEALLOCATE CUR 


Print @SQL


 EXEC sys.sp_executesql @SQL

SELECT REPLACE(o.name, 'tt_', '') as TableName, t.Size, t.Total_Rows, '1' as IsClient
FROM sys.objects o
JOIN (
    SELECT
          i.[object_id]
        , size = SUM(a.total_pages) * 8. / 1024
        , total_rows = SUM(CASE WHEN i.index_id IN (0, 1) AND a.[type] = 1      THEN p.[rows] END)
    FROM sys.indexes i
    JOIN sys.partitions p ON i.[object_id] = p.[object_id] AND i.index_id =     p.index_id
    JOIN sys.allocation_units a ON p.[partition_id] = a.container_id
    GROUP BY i.[object_id]
) t ON o.[object_id] = t.[object_id]
WHERE o.name LIKE 'tt_%'
    AND o.is_ms_shipped = 0
    AND o.[type] = 'U'
    ORDER BY t.size DESC

SET @SQL = ''
SELECT @SQL += '
DROP TABLE [' + o.name + ']'
FROM sys.objects o
WHERE o.[type] = 'U'
AND o.name LIKE 'tt_%'
AND o.is_ms_shipped = 0

EXEC sys.sp_executesql @SQL

查询通过筛选行来查找每个表的大小

1 个答案: