Hi,
You want to learn all Inventory of SQL Server when you connect to SQL Server database for the first time.

This SQL Server Database Inventory consist of following informations.
- Machine Name
- Instance Name
- Total Database Log Size
- Total Database Log Used
- Total Database Datafile size
- Logical CPU Count
- Physical CPU Count
- Physical Memory on Server
- Total Disk Size on Server
- Total Free Disk space on Server
Query result will be like following screenshots.


Query is like following, it will make your job very simplify when you connect to any SQL Server database for the first time.
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ole Automation Procedures', 1;
GO
RECONFIGURE;
GO
/*******************************************************/
SET NOCOUNT ON
DECLARE @hr int
DECLARE @fso int
DECLARE @drive char(1)
DECLARE @odrive int
DECLARE @TotalSize varchar(20) DECLARE @MB Numeric ; SET @MB = 1048576
CREATE TABLE #drives (drive char(1) PRIMARY KEY, FreeSpace int NULL,
TotalSize int NULL) INSERT #drives(drive,FreeSpace) EXEC
master.dbo.xp_fixeddrives EXEC @hr=sp_OACreate
'Scripting.FileSystemObject',@fso OUT IF @hr <> 0 EXEC sp_OAGetErrorInfo
@fso
DECLARE dcur CURSOR LOCAL FAST_FORWARD
FOR SELECT drive from #drives ORDER by drive
OPEN dcur FETCH NEXT FROM dcur INTO @drive
WHILE @@FETCH_STATUS=0
BEGIN
EXEC @hr = sp_OAMethod @fso,'GetDrive', @odrive OUT, @drive
IF @hr <> 0 EXEC sp_OAGetErrorInfo @fso EXEC @hr =
sp_OAGetProperty
@odrive,'TotalSize', @TotalSize OUT IF @hr <> 0 EXEC sp_OAGetErrorInfo
@odrive UPDATE #drives SET TotalSize=@TotalSize/@MB WHERE
drive=@drive FETCH NEXT FROM dcur INTO @drive
End
Close dcur
DEALLOCATE dcur
EXEC @hr=sp_OADestroy @fso IF @hr <> 0 EXEC sp_OAGetErrorInfo @fso
--SELECT @@Servername
--SELECT
--drive, TotalSize as 'Total(MB)', FreeSpace as 'Free(MB)' FROM #drives
--ORDER BY drive
CREATE TABLE #CPUInfo
( Logical_CPU_Count bigint,
Hyperthread_Ratio bigint,
Physical_CPU_Count bigint,
Physical_Memory_MB bigint
)
INSERT INTO #CPUInfo(
Logical_CPU_Count,
Hyperthread_Ratio,
Physical_CPU_Count,
Physical_Memory_MB
)
SELECT
cpu_count AS [Logical_CPU_Count]
,hyperthread_ratio AS [Hyperthread_Ratio]
,cpu_count/hyperthread_ratio AS [Physical_CPU_Count]
, physical_memory_kb/1024 AS [Physical_Memory_MB]
FROM sys.dm_os_sys_info
CREATE TABLE #DatabaseInfo
( Machine_Name varchar(50),
Instance_Name varchar(50),
Sql_Server_Name varchar(50),
Total_Database_log_size_MB bigint,
Total_Database_log_used_MB bigint,
Total_Database_Data_File_Size_MB bigint
)
INSERT INTO #DatabaseInfo
(
Machine_Name,
Instance_Name,
Sql_Server_Name,
Total_Database_log_size_MB,
Total_Database_log_used_MB,
Total_Database_Data_File_Size_MB
)
select convert(varchar(50),serverproperty('MachineName')) 'Machine_Name'
,convert(varchar(50),isnull(serverproperty('InstanceName'),'mssqlserver')) 'Instance_Name'
,convert(varchar(50),@@SERVERNAME) 'Sql_Server_Name'
,sum(ls.cntr_value/1024) as [Total_Database_log_size_MB]
,sum(lu.cntr_value/1024)as [Total_Database_log_used_MB]
,sum(ds.cntr_value/1024) as [Total_Database_Data_File_Size_MB]
from sys.databases d
left outer join sys.dm_os_performance_counters as lu on lu.instance_name=d.name and lu.counter_name like N'Log File(s) Used Size (KB)%'
left outer join sys.dm_os_performance_counters as ls on ls.instance_name=d.name and ls.counter_name like N'Log File(s) Size (KB)%' and ls.cntr_value > 0
left outer join sys.dm_os_performance_counters as lp on lp.instance_name=d.name and lp.counter_name like N'Percent Log Used%'
left outer join sys.dm_os_performance_counters as ds on ds.instance_name=d.name and ds.counter_name like N'Data File(s) Size (KB)%'
where d.database_id>4; -- sistem database ler harc
WITH SizeDisc AS
( -- sunucu üzerindeki tüm drive size ve free size bilgisi
SELECT SUM(TotalSize) as 'TotalDiscSizeonServer(MB)',
SUM(FreeSpace) as 'TotalFreeDiscSizeOnServer(MB)'
FROM #drives
)
SELECT *
FROM #DatabaseInfo,#CPUInfo,SizeDisc
DROP TABLE #Drives
DROP TABLE #DatabaseInfo
DROP TABLE #CPUInfo
GO
/*******************************************************/
/* Disabling Ole Automation Procedures */
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ole Automation Procedures', 0;
GO
RECONFIGURE;
/*******************************************************/
GO
Do you want to learn Microsoft SQL Server DBA Tutorials for Beginners, then read the following articles.
https://ittutorial.org/sql-server-tutorials-microsoft-database-for-beginners/
IT Tutorial IT Tutorial | Oracle DBA | SQL Server, Goldengate, Exadata, Big Data, Data ScienceTutorial
very interesting information! .