-- ===================================================================================================================
-- Collector: ServerCollector ("server")
-- ===================================================================================================================
-- Hvad:        Starttidspunkt, logiske CPU'er, schedulers, NUMA-noder, fysisk hukommelse og virtualisering.
-- Fil:         src/SQLInsight.Collectors/Instance/ServerCollector.cs
-- Interval:    15 min som standard (SQLInsight:CollectorIntervals:server)
-- Versioner:   Alle (SQL Server 2000 og nyere)
--
-- Rettigheder til agentens login (se db/permissions/grant-least-privilege.sql; [agent] = agentens login):
--   GRANT VIEW SERVER STATE TO [agent];                -- SQL Server 2005-2019
--   GRANT VIEW SERVER PERFORMANCE STATE TO [agent];    -- SQL Server 2022+ (erstatter VIEW SERVER STATE)
--   GRANT VIEW SERVER SECURITY STATE TO [agent];       -- SQL Server 2022+
--   SQL Server 2000 har ikke VIEW SERVER STATE; se docs/legacy-versions.md (fx kræver DBCC SQLPERF(WAITSTATS) forhøjede rettigheder).
--
-- Bruges af:   SQLI-CFG-001, SQLI-CFG-002, SQLI-CFG-003, SQLI-CFG-004, SQLI-DB-015
-- Read-only:   Ja: kun SELECT samt xp_msver (læser versionsoplysninger), SET-sessionsindstillinger. Intet ændrer
--              data, indstillinger eller objekter.
-- Kørsel:     Kør i SSMS som agentens login. Hver variant er sin egen batch (GO); en variant for en anden SQL Server-version
--             end din kan fejle - det er forventet. Agenten kører altid med sessionsindstillingerne i _collectors/InstanceProbe.sql.
-- ===================================================================================================================

-- Variant: SQL Server 2012 og nyere
-- Kilde: ServerCollector.BuildSql(2012+)
-- Kode:  src/SQLInsight.Collectors/Instance/ServerCollector.cs : ServerCollector.BuildSql(version)
SELECT
    (SELECT sqlserver_start_time FROM sys.dm_os_sys_info),
    cpu_count,
    (SELECT COUNT(*) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    (SELECT COUNT(DISTINCT parent_node_id) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    physical_memory_kb / 1024,
    virtual_machine_type_desc
FROM sys.dm_os_sys_info
GO

-- Variant: SQL Server 2008 R2 SP1 og senere 2008 R2-builds
-- Kilde: ServerCollector.BuildSql(2008 R2 SP1)
-- Kode:  src/SQLInsight.Collectors/Instance/ServerCollector.cs : ServerCollector.BuildSql(version)
SELECT
    (SELECT sqlserver_start_time FROM sys.dm_os_sys_info),
    cpu_count,
    (SELECT COUNT(*) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    (SELECT COUNT(DISTINCT parent_node_id) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    physical_memory_in_bytes / 1048576,
    virtual_machine_type_desc
FROM sys.dm_os_sys_info
GO

-- Variant: SQL Server 2008 og 2008 R2 før SP1
-- Kilde: ServerCollector.BuildSql(2008)
-- Kode:  src/SQLInsight.Collectors/Instance/ServerCollector.cs : ServerCollector.BuildSql(version)
SELECT
    (SELECT sqlserver_start_time FROM sys.dm_os_sys_info),
    cpu_count,
    (SELECT COUNT(*) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    (SELECT COUNT(DISTINCT parent_node_id) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    physical_memory_in_bytes / 1048576,
    CAST(NULL AS nvarchar(60))
FROM sys.dm_os_sys_info
GO

-- Variant: SQL Server 2005
-- Kilde: ServerCollector.BuildSql(2005)
-- Kode:  src/SQLInsight.Collectors/Instance/ServerCollector.cs : ServerCollector.BuildSql(version)
SELECT
    (SELECT create_date FROM sys.databases WHERE database_id = 2),
    cpu_count,
    (SELECT COUNT(*) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    (SELECT COUNT(DISTINCT parent_node_id) FROM sys.dm_os_schedulers WHERE status = N'VISIBLE ONLINE'),
    physical_memory_in_bytes / 1048576,
    CAST(NULL AS nvarchar(60))
FROM sys.dm_os_sys_info
GO

-- Variant: SQL Server 2000 (legacy ODBC-sti): starttidspunkt
-- Kilde: ServerCollector.StartTimeSql(2000)
-- Kode:  src/SQLInsight.Collectors/Db.cs : Db.StartTimeSql(version)
SELECT (SELECT login_time FROM master.dbo.sysprocesses WHERE spid = 1)
GO

-- Variant: SQL Server 2000 (legacy ODBC-sti): CPU og hukommelse
-- Kilde: ServerCollector.Sql2000
-- Kode:  src/SQLInsight.Collectors/Instance/ServerCollector.cs : ServerCollector.Sql2000
EXEC master.dbo.xp_msver
GO