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[MSSQL]: Common T-SQL



-- Check version
PRINT @@Version


 SELECT * FROM sys.configurations


-- Show all processes
SELECT * FROM sys.sysprocesses


-- Check active connections
SELECT DB_NAME(dbid) AS DBName, COUNT(dbid) AS NumberOfConnections, loginame
FROM sys.sysprocesses
GROUP BY dbid, loginame
ORDER BY DB_NAME(dbid)


-- Check Collation used by all databases
USE Master
GO 
SELECT NAME, COLLATION_NAME 
FROM sys.Databases 
ORDER BY DATABASE_ID ASC 
GO

-- Enable 'sa' login
ALTER LOGIN [sa] ENABLE
GO

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