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How to find the instance up time

Antonios Chatzipavlis
Sunday 03 November 2019

Αρκετές φορές θέλεις να δεις πόσο χρόνο ένα SQL Server instance είναι ενεργό ή να δεις πότε έχει γίνει τελευταία φορά restart.

Ο ευκολότερος τρόπος για να κάνεις αυτό είναι να δεις την ημερομηνία δημιουργίας της tempdb, καθώς αυτή δημιουργείται κάθε φορά που ξεκινάει το instance.

Επειδή όμως δεν θέλεις να κάνεις πράξεις για εμφανιστεί ο χρόνος αυτός σε μια μορφή που εύκολα καταλαβαίνει κανεις, μπορείς με λίγα απλά μαθηματικά και την convert να πάρεις αυτό που θέλεις


SELECT    CONVERT(varchar, DATEDIFF(SECOND,create_date,GETDATE()) / 86400 ) + ':' +
        CONVERT(varchar, DATEADD(ms, ( DATEDIFF(SECOND,create_date,GETDATE()) % 86400 ) * 1000, 0), 114) as [instance up time (D:HH:MM:SS.MS)]
FROM sys.databases
WHERE name = 'tempdb'

//antonch

Antonios Chatzipavlis

Antonios Chatzipavlis

Antonios Chatzipavlis is a highly experienced Data Solutions Consultant and Trainer. He has been working in the IT industry since 1988, holding various roles such as senior developer, IT Manager, Data & AI Solutions Architect and Consultant.

Since 1995, Antonios has focused on modern technologies and software development tools, primarily by Microsoft. He has specialized in Data & AI since 2000, with expertise in Microsoft Data Platform (SQL Server, Azure SQL Databases, Azure Synapse Analytics, Microsoft Fabric, Power BI, AI) and Databricks.

Antonios is also a Microsoft Certified Trainer (MCT) for over 25 years, has been recognized as a Microsoft Most Valuable Professional (MVP) in Data Platform since 2010 and he is in the Data Expert 40 Powerlist 2024 by Boussias. He is the co-founder and visionary behind XLYTiCA, a company dedicated to Data & AI solutions.

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