{"id":1059,"date":"2008-04-17T01:27:00","date_gmt":"2008-04-17T01:27:00","guid":{"rendered":"\/blogs\/paul\/post\/Search-Engine-QA-18-Whats-the-current-uptime-of-SQL-Server.aspx"},"modified":"2015-06-22T16:41:26","modified_gmt":"2015-06-22T23:41:26","slug":"search-engine-qa-18-whats-the-current-uptime-of-sql-server","status":"publish","type":"post","link":"https:\/\/www.sqlskills.com\/blogs\/paul\/search-engine-qa-18-whats-the-current-uptime-of-sql-server\/","title":{"rendered":"Search Engine Q&A #18: What’s the current uptime of SQL Server?"},"content":{"rendered":"

<\/p>\n

\nHere's a quickie just before we head off to <\/font>SQL Connections<\/font> in Orlando. <\/font>\n<\/p>\n

\nOn one of the internal MS forums was the question – how can I tell through T-SQL the last time SQL Server restarted (i.e. the current 'uptime')? The answer relies on the fact that all the background tasks that start when SQL Server starts must record a 'login time'. <\/font>\n<\/p>\n

\nYou can get this from: <\/font>\n<\/p>\n

\n\t<\/p>\n

\n\tSELECT<\/font> [login_time] <\/font>FROM<\/font> sysprocesses <\/font>WHERE<\/font> spid <\/font>=<\/font> 1<\/font><\/font>;
\n\t<\/font><\/font>GO<\/font> <\/font>\n\t<\/p>\n

\t<\/font>\n<\/p><\/blockquote>\n

\nOr more simply:<\/font><\/font> <\/font>\n<\/p>\n

\n\t<\/p>\n

\n\tSELECT <\/font>MIN<\/font> <\/font>(<\/font>[login_time]<\/font>)<\/font> <\/font>FROM<\/font> sysprocesses<\/font><\/font>;
\n\t<\/font>GO <\/font>\n\t<\/p>\n

\t<\/font><\/font>\n<\/p><\/blockquote>\n

\nPretty neat trick! <\/font>\n<\/p>\n

<\/font><\/p>\n

\nAs with the last few conferences, I'll try to blog every day during SQL Connections under the Conference Questions Pot-Pourri category. <\/font>\n<\/p>\n

\nHope to see a bunch of you there!<\/font>\n<\/p>\n

\nPS Some people have suggested that checking the creation date of tempdb will also do the trick. That's not a *guaranteed* method as PSS could have used T3609 to recover tempdb instead of recreating it (if they're troubleshooting some tempdb issue). In that case the creation date of tempdb will *not* be the time the server started. Checking the time in sysprocesses is the only infallible method. <\/font><\/p>\n","protected":false},"excerpt":{"rendered":"

Here's a quickie just before we head off to SQL Connections in Orlando. On one of the internal MS forums was the question – how can I tell through T-SQL the last time SQL Server restarted (i.e. the current 'uptime')? The answer relies on the fact that all the background tasks that start when SQL […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44,78],"tags":[],"class_list":["post-1059","post","type-post","status-publish","format-standard","hentry","category-general","category-search-engine-q-and-a"],"yoast_head":"\nSearch Engine Q&A #18: What's the current uptime of SQL Server? - Paul S. Randal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sqlskills.com\/blogs\/paul\/search-engine-qa-18-whats-the-current-uptime-of-sql-server\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Search Engine Q&A #18: What's the current uptime of SQL Server? - Paul S. Randal\" \/>\n<meta property=\"og:description\" content=\"Here's a quickie just before we head off to SQL Connections in Orlando. On one of the internal MS forums was the question – how can I tell through T-SQL the last time SQL Server restarted (i.e. the current 'uptime')? 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