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  • 知道sql数据库中的哪个数据表最大

    --各数据表的空间使用量
    CREATE VIEW DataBaseDestribute
    AS
       
    SELECT TOP 1000
        a3.name
    AS [schemaname],
        a2.name
    AS [tablename],
        a1.rows
    as row_count,
        (a1.reserved
    + ISNULL(a4.reserved,0))* 8 AS [reserved(K)],
        a1.data
    * 8 AS [data(k)],
        (
    CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 AS [index_size(k)],
        (
    CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 AS [unused(k)],
        a1.data
    * 8*1024/(CASE WHEN a1.Rows=0 THEN 1 ELSE a1.Rows END) BytesPerRow
       
    FROM
            (
           
    SELECT
            ps.
    object_id,
           
    SUM (
           
    CASE
           
    WHEN (ps.index_id < 2) THEN row_count
           
    ELSE 0
           
    END
            )
    AS [rows],
           
    SUM (ps.reserved_page_count) AS reserved,
           
    SUM (
           
    CASE
           
    WHEN (ps.index_id < 2) THEN (ps.in_row_data_page_count + ps.lob_used_page_count + ps.row_overflow_used_page_count)
           
    ELSE (ps.lob_used_page_count + ps.row_overflow_used_page_count)
           
    END
            )
    AS data,
           
    SUM (ps.used_page_count) AS used
           
    FROM sys.dm_db_partition_stats ps
           
    GROUP BY ps.object_id) AS a1
           
    LEFT OUTER JOIN
                (
               
    SELECT
                it.parent_id,
               
    SUM(ps.reserved_page_count) AS reserved,
               
    SUM(ps.used_page_count) AS used
               
    FROM sys.dm_db_partition_stats ps
               
    INNER JOIN sys.internal_tables it ON (it.object_id = ps.object_id)
               
    WHERE it.internal_type IN (202,204)
               
    GROUP BY it.parent_id
                )
    AS a4 ON (a4.parent_id = a1.object_id)
       
    INNER JOIN sys.all_objects a2  ON ( a1.object_id = a2.object_id )
       
    INNER JOIN sys.schemas a3 ON (a2.schema_id = a3.schema_id)
       
    WHERE a2.type <> N'S' and a2.type <> N'IT'
       
    ORDER BY [reserved(K)] DESC
    GO

    SELECT * FROM DataBaseDestribute
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  • 原文地址:https://www.cnblogs.com/Luouy/p/2203290.html
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