How can I get all table names, row counts and their data sizes in a SQL Server 2012 database? - sql

Question

I need to analyze my database. I want to get all table names, their record counts and actual data size of these tables. As you know, record count sometimes may be low but actual size of table can be very high.
Do you have such a script?

Answer 1

Will this work for you? It's a script I use:
SELECT
S.name +'.'+ T.name as TableName,
Convert(varchar,Cast(SUM(P.rows) as Money),1) as [RowCount],
Convert(varchar,Cast(SUM(a.total_pages) * 8 as Money),1) AS TotalSpaceKB,
Convert(varchar,Cast(SUM(a.used_pages) * 8 as Money),1) AS UsedSpaceKB,
(SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
FROM sys.tables T
INNER JOIN sys.partitions P ON P.OBJECT_ID = T.OBJECT_ID
INNER JOIN sys.schemas S ON T.schema_id = S.schema_id
INNER JOIN sys.allocation_units A ON p.partition_id = a.container_id
WHERE T.is_ms_shipped = 0 AND P.index_id IN (1,0)
GROUP BY S.name, T.name
ORDER BY SUM(P.rows) DESC
By the way, I cast the counts as money so I can get commas.

Answer 2

Another method using CURSOR and temp table.
IF OBJECT_ID(N'tempdb..[#TableSizes]') IS NOT NULL
DROP TABLE #TableSizes ;
GO
CREATE TABLE #TableSizes
(
TableName nvarchar(128)
, [RowCount] int
, ReservedSpaceKB int
, DataSpaceKB int
, IndexSizeKB int
, UnusedSpaceKB int
) ;
GO
DECLARE RecCountCursor CURSOR FOR
SELECT S.name+'.'+T.name AS TableName
FROM Sys.tables T INNER JOIN sys.schemas S ON (S.schema_id = T.schema_id)
WHERE S.principal_id = 1
ORDER BY TableName
OPEN RecCountCursor ;
DECLARE #TableName nvarchar(128) ;
FETCH RecCountCursor INTO #TableName ;
WHILE ( ##FETCH_STATUS = 0 )
BEGIN
CREATE TABLE #TempTableSizes
(
[TableName] nvarchar(128)
, [RowCount] char(11)
, [ReservedSpace] varchar(18)
, [DataSpace] varchar(18)
, [IndexSize] varchar(18)
, [UnusedSpace] varchar(18)
) ;
INSERT INTO #TempTableSizes
exec sp_spaceused #objname = #TableName;
UPDATE #TempTableSizes SET [TableName] = #TableName;
INSERT INTO #TableSizes
SELECT [TableName], [RowCount],
SUBSTRING([ReservedSpace], 1, CHARINDEX(' KB', [ReservedSpace])),
SUBSTRING([DataSpace], 1, CHARINDEX(' KB', [DataSpace])),
SUBSTRING([IndexSize], 1, CHARINDEX(' KB', [IndexSize])),
SUBSTRING([UnusedSpace], 1, CHARINDEX(' KB', [UnusedSpace]))
FROM #TempTableSizes
DROP TABLE #TempTableSizes;
FETCH RecCountCursor INTO #TableName ;
end
CLOSE RecCountCursor ;
DEALLOCATE RecCountCursor ;
SELECT *
FROM [#TableSizes]
ORDER BY [ReservedSpaceKB] DESC ;
DROP TABLE #TableSizes ;

Answer 3

Use:
SELECT ##servername;
IF EXISTS(SELECT name FROM tempdb.sys.tables WHERE name LIKE '#spaceUsed%')
BEGIN
DROP TABLE #spaceUsed;
END;
CREATE TABLE #spaceUsed (
name VARCHAR(255) ,
rows INT ,
reserved VARCHAR(50) ,
data VARCHAR(50) ,
index_size VARCHAR(50) ,
unused VARCHAR(50));
EXEC sp_msforeachtable
#command1 ='
--
INSERT INTO #spaceUsed
exec sp_spaceused N''?'';
'
,#whereand = ' And Object_id In (Select Object_id From sys.objects
Where SCHEMA_NAME(Schema_ID) like ''%'')';
DECLARE
#spaceUsedData TABLE (
name VARCHAR(255) ,
rows INT ,
reservedMB BIGINT NULL ,
dataMB BIGINT NULL ,
index_sizeMB BIGINT NULL ,
unusedMB BIGINT NULL);
INSERT INTO #spaceUsedData (name , rows , reservedMB , dataMB ,index_sizeMB ,unusedMB)
SELECT name , rows ,
Convert ( BIGINT ,Ltrim(Rtrim(Replace(reserved ,'KB' ,'')) ))/1024 ,
Convert ( BIGINT ,Ltrim(Rtrim(Replace(data ,'KB' ,'')) ))/1024 ,
Convert ( BIGINT ,Ltrim(Rtrim(Replace(index_size ,'KB' ,'')) ))/1024 ,
Convert ( BIGINT ,Ltrim(Rtrim(Replace(unused ,'KB' ,'')) ))/1024
FROM #spaceUsed;
SELECT * , reservedMB+ dataMB+index_sizeMB+unusedMB AS TotalMB FROM #spaceUsedData
ORDER BY rows DESC;