Can you query the maximum database size based on the SQL Server license?

Question

Depending on the licensing and configuration of your SQL Server database, you may have have very different size restrictions. For example:

• SQL Server 2012 Express has a limit of 10GB
• SQL Server 2008 R2 Express has a limit of 10GB
• SQL Server 2008 Express has a limit of 4GB

Is it possible to query the database server to find out what the maximum size is?

I can query to find out the current size:

name      DataFileSizeMB LogFileSizeMB  
--------- -------------- -------------  
master          4.875000      1.750000  
tempdb          8.000000      0.500000  
model           4.062500      1.000000  
msdb           16.687500      4.562500  
Harrison       21.937500     18.187500  
Lennon        122.750000    425.625000  
McCartney      19.937500     49.687500  
Starr          19.937500     18.187500  

What I'm now after, is a way to find out what the maximum is, based on the licensing not the available HDD space.

Answer 1

Try this one -

SELECT 
      d.server_name
    , d.sversion_name
    , d.edition
    , max_db_size_in_gb = 
        CASE WHEN engine_edition = 4 
            THEN 
                CASE 
                    WHEN d.sversion_name LIKE '%2012%' THEN 10
                    WHEN d.sversion_name LIKE '%2008 R2%' THEN 10
                    WHEN d.sversion_name LIKE '%2008%' THEN 4 
                    WHEN d.sversion_name LIKE '%2005%' THEN 4
                END
            ELSE -1 
        END
FROM (
    SELECT 
          sversion_name = SUBSTRING(v.ver, 0, CHARINDEX('-', v.ver) - 1)
        , engine_edition = SERVERPROPERTY('EngineEdition')
        , edition = SERVERPROPERTY('Edition')
        , server_name = SERVERPROPERTY('ServerName')
    FROM (SELECT ver = @@VERSION) v
) d

Also, try this query to get extended info about DB -

IF EXISTS(
    SELECT 1 
    FROM tempdb.dbo.sysobjects 
    WHERE id = OBJECT_ID('tempdb.dbo.#DBObj')
) DROP TABLE #DBObj

CREATE TABLE #DBObj
(
      [DB] SYSNAME
    , reservedpages INT
    , usedpages INT
    , pages INT
)

EXEC sys.sp_MSforeachdb '
    USE [?]

    INSERT INTO #DBObj
    (
          [DB]
        , reservedpages
        , usedpages
        , pages
    )
    SELECT 
          DB_NAME()
        , pg.reservedpages
        , pg.usedpages
        , pg.pages   
    FROM (
        SELECT
              reservedpages = SUM(a.total_pages)
            , usedpages = SUM(a.used_pages)
            , pages = SUM(
                CASE
                    WHEN it.internal_type IN (202, 204, 207, 211, 212, 213, 214, 215, 216, 221, 222) THEN 0
                    WHEN a.[type] != 1 AND p.index_id < 2 THEN a.used_pages
                    WHEN p.index_id < 2 THEN a.data_pages ELSE 0
                END
              )
        FROM sys.partitions p
        JOIN sys.allocation_units a ON p.[partition_id] = a.container_id
        LEFT JOIN sys.internal_tables it ON p.[object_id] = it.[object_id]
    ) pg'

SELECT 
      d.name
    , total_size_mb = data.row_size_mb + data.log_size_mb
    , data.log_size_mb
    , data.row_size_mb
    , reserved_space_mb = CAST(do.reservedpages * 8. / 1024 AS DECIMAL(10,2))
    , data_size_mb = CAST(do.pages * 8. / 1024 AS DECIMAL(10,2))
    , index_size_mb = CAST((do.usedpages - do.pages) * 8. / 1024 AS DECIMAL(10,2))
    , unused_size_mb = CAST((do.reservedpages - do.usedpages) * 8. / 1024 AS DECIMAL(10,2))
    , unallocated_space_mb = 
        CAST(CASE WHEN data.row_size >= do.reservedpages 
            THEN (data.row_size - do.reservedpages) * 8. / 1024 
            ELSE 0
        END AS DECIMAL(10,2))
FROM (
    SELECT
          df2.database_id
        , log_size_mb = CAST(df2.log_size * 8. / 1024 AS DECIMAL(10,2))
        , row_size_mb = CAST(df2.row_size * 8. / 1024 AS DECIMAL(10,2)) 
        , df2.log_size
        , df2.row_size
    FROM (
        SELECT 
              df.database_id
            , log_size = SUM(CASE WHEN df.type_desc = 'LOG' THEN df.size END)
            , row_size = SUM(CASE WHEN df.type_desc = 'ROWS' THEN df.size END)
        FROM sys.master_files df
        GROUP BY df.database_id 
    ) df2
) data
JOIN sys.databases d ON data.database_id = d.database_id
JOIN #DBObj do ON do.DB = d.name
ORDER BY data.row_size_mb + data.log_size_mb DESC