Sybase ASE SQL 查询从系统表创建一个字段，显示每个表的大小（以 MB 为单位）

Question

我可以使用系统表获取行数，我还想包含一个以 MB 为单位显示每个表大小的字段。

我尝试了以下查询来获取表行数。

declare @kernel_mode varchar(15)
if @@trancount = 0
begin
    set chained off
end

set transaction isolation level 1

select @kernel_mode = @@kernelmode

select
ob.name as Table_Name, 
ob.type as Type, 
ta.rowcnt as Row_Count,  
ob.crdate as Created_Date, 
ta.statmoddate as Last_Modified_Date
into #t
from sysobjects ob, systabstats ta 
where ob.type="U"
and ta.id=ob.id
order by ob.name

if (@kernel_mode = 'process')
    begin
        exec sp_autoformat @fulltabname = #t,
        @selectlist = "Table_Name, Type, Row_Count, Created_Date, Last_Modified_Date",
        @orderby = "order by Table_Name asc"
    end
    else
    begin
        exec sp_autoformat @fulltabname = #t,
        @selectlist = "Table_Name, Type, Row_Count, Created_Date, Last_Modified_Date",
        @orderby = "order by Table_Name asc"
    end

  drop table #t

Answer 1

根据@markp-fuso的建议，我提出了以下查询。

declare @kernel_mode varchar(15)
if @@trancount = 0
begin
    set chained off
end

set transaction isolation level 1

select @kernel_mode = @@kernelmode

select
ob.name as Table_Name, 
ob.type as Type, 
ta.rowcnt as Row_Count,  
(cast(ta.pagecnt as 
bigint)*@@maxpagesize/1024.0/1024.0 as 
Table_Size_in_MB
ob.crdate as Created_Date, 
ta.statmoddate as Last_Modified_Date
into #t
from sysobjects ob, systabstats ta 
where ob.type="U"
and ta.id=ob.id
order by ob.name

if (@kernel_mode = 'process')
    begin
        exec sp_autoformat @fulltabname = #t,
        @selectlist = "Table_Name, Type, 
Row_Count, Created_Date, 
Last_Modified_Date",
        @orderby = "order by Table_Name asc"
    end
    else
    begin
        exec sp_autoformat @fulltabname = #t,
        @selectlist = "Table_Name, Type, 
Row_Count, Created_Date, 
Last_Modified_Date",
        @orderby = "order by Table_Name asc"
    end