SQL Server資料庫日常檢查

1.1代碼檢查從昨天到現在，SQL代理Job有沒有運行失敗的，會把運行失敗的Job名字，步驟，運行時間，錯誤等級，錯誤原因羅列出來，方便查看。

----1.1  Check Job Fail List From Last Day To NowSELECT  j.[name],          h.step_id,          h.step_name,          h.run_date,          h.run_time,          h.sql_severity,          h.message,           h.server  FROM    msdb.dbo.sysjobhistory h          INNER JOIN msdb.dbo.sysjobs j              ON h.job_id = j.job_id          INNER JOIN msdb.dbo.sysjobsteps s              ON j.job_id = s.job_id                 AND h.step_id = s.step_id  WHERE    h.run_status = 0 -- Failure           AND h.run_date > CONVERT(int,CONVERT(varchar(10), DATEADD(DAY, -1, GETDATE()), 112))ORDER BY h.instance_id DESC;

1.2 檢查兩天內，運行時間超過30分鐘的Job，並按執行時間長短排序，時間2天和運行時間30分鐘，都是可以調整的，可以調整為自己需要的檢查範圍。代碼會把執行Job的名稱，運行時間，平均執行時間列出來。看是否有突然變化的運行情況。

----1.2  Check Jobs With Long Duration:30minutes(can modify to other value) From Last 2 Day To NowSELECT sj.name   , sja.start_execution_date,DATEDIFF (minute ,sja.start_execution_date,sja.stop_execution_date ) AS ExecutedMin,ja.AvgRuntimeOnSucceed/60 as AvgRuntimeOnSucceedMinFROM msdb.dbo.sysjobactivity AS sjaINNER JOIN msdb.dbo.sysjobs AS sj ON sja.job_id = sj.job_id INNERjoin(    SELECT job_id,    AVG    ((run_duration/10000 * 3600) + ((run_duration%10000)/100*60) + (run_duration%10000)%100)    +    NULLIF(0,STDEV    ((run_duration/10000 * 3600) + ((run_duration%10000)/100*60) + (run_duration%10000)%100)) AS 'AvgRuntimeOnSucceed'     FROM msdb.dbo.sysjobhistory    WHERE step_id = 0 AND run_status = 1    GROUP BY job_id) ja     ON sj.job_id = ja.job_idWHERE sja.start_execution_date IS NOT NULL --作業有開始   AND sja.stop_execution_date IS not NULL --作業結束   AND sja.start_execution_date>DATEADD(DAY,-2,GETDATE()) --作業2天內開始and DATEDIFF (minute ,sja.start_execution_date,sja.stop_execution_date )>30order by ExecutedMin desc

1.3 檢查資料庫錯誤日誌，預設讀取的是當前log，篩選的是Error開頭的錯誤日誌，可以根據需要篩選其他關鍵字。

----1.3  Check SQL Error LogDROP TABLE IF EXISTS #errorLog;  -- this is new syntax in SQL 2016 and later

CREATE TABLE #errorLog (LogDate DATETIME, ProcessInfo VARCHAR(64), [Text] VARCHAR(MAX));

INSERT INTO #errorLogEXEC sp_readerrorlog