查询数据库中每张表的数据以及索引占用空间

BEGIN

  –查询目前数据库中的用户表

  DECLARE @currentTable TABLE (tableName NVARCHAR(50));

  INSERT INTO @currentTable (tableName)

  SELECT name

  FROM sys.objects

  WHERE type = ‘U’;

  –缓存系统存储过程的表变量

  DECLARE @temp TABLE(tableName NVARCHAR(50), rows NVARCHAR(50), reserved NVARCHAR(50),

                      data NVARCHAR(50), indexSize NVARCHAR(50), unused NVARCHAR(50));

 

  DECLARE i_cursor CURSOR FOR SELECT tableName FROM @currentTable;

  OPEN i_cursor;

  DECLARE @tableName NVARCHAR(50);

  FETCH NEXT FROM i_cursor INTO @tableName;

  WHILE @@FETCH_STATUS = 0

  BEGIN

    INSERT INTO @temp

    –调用系统存储过程，查询表的资源占用情况

    EXEC sp_spaceused @tableName;

    FETCH NEXT FROM i_cursor INTO @tableName;

  END

  CLOSE i_cursor;

  DEALLOCATE i_cursor;

 

  DECLARE @temp1 TABLE(tableName NVARCHAR(50), rows INT, reserved INT, data INT, indexSize INT, unused INT);

  INSERT INTO @temp1

  SELECT tableName

  ,      rows

  ,      convert(INT, substring(reserved, 1, len(reserved) – 3))

  ,      convert(INT, substring(data, 1, len(data) – 3))

  ,      convert(INT, substring(indexSize, 1, len(indexSize) – 3))

  ,      convert(INT, substring(unused, 1, len(unused) – 3))

  FROM @temp;

 

  –统计比例

  DECLARE @dataSum INT, @indexSum INT;

  SELECT @dataSum = sum(data), @indexSum = sum(indexSize) FROM @temp1;

  DECLARE @result TABLE(tableName NVARCHAR(50), rows INT, data DECIMAL(10,2), dataRate DECIMAL(10,2),

                        indexSize DECIMAL(10,2), indexRate DECIMAL(10,2))

  INSERT INTO @result

  SELECT tableName

  ,      rows

  ,      data * 1.0 / 1024 –KB转为MB

  ,      data * 1.0 / @dataSum

  ,      indexSize * 1.0 / 1024  –KB转为MB

  ,      indexSize * 1.0 / @indexSum

  FROM @temp1

 

  SELECT * FROM @result ORDER BY rows DESC;

END