SQL Agen Scheduler - Updated
This commit is contained in:
Neeraj Kumar
@ -0,0 +1,223 @@
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USE [msdb];
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GO
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CREATE OR ALTER PROCEDURE dbo.usp_CreateWeeklySchedules
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@Env VARCHAR(10) = 'DEVL' -- Added parameter with default value
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AS
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BEGIN
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SET NOCOUNT ON;
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DECLARE
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@JobName SYSNAME,
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@FrequencyPattern NVARCHAR(MAX),
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@StartTime VARCHAR(50),
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@ScheduleName SYSNAME,
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@StartTimeInt INT,
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@FreqInterval INT,
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@ActiveDate INT,
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@computedFreq INT,
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@dbName SYSNAME; -- Added variable for database name
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-- Determine database name based on environment
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SET @dbName = CASE @Env
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WHEN 'DEVL' THEN 'DevlDUTASJobSchedule'
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WHEN 'TEST' THEN 'TestDUTASJobSchedule'
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WHEN 'PROD' THEN 'ProdDUTASJobSchedule'
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END;
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SET @ActiveDate = CONVERT(INT, CONVERT(CHAR(8), GETDATE(), 112));
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--------------------------------------------------------------------------
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-- Dynamic SQL for cursor to fetch active weekly jobs from appropriate database
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--------------------------------------------------------------------------
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DECLARE @Sql NVARCHAR(MAX);
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SET @Sql = N'
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DECLARE job_cursor CURSOR FAST_FORWARD FOR
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SELECT
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JobName,
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FrequencyPattern,
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ScheduledStartTime
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FROM ' + QUOTENAME(@dbName) + N'.dbo.JobControl
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WHERE UPPER(Frequency) = ''WEEKLY''
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AND IsActive = 1;';
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-- Execute dynamic SQL to declare cursor
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EXEC sp_executesql @Sql;
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OPEN job_cursor;
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FETCH NEXT FROM job_cursor INTO @JobName, @FrequencyPattern, @StartTime;
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WHILE @@FETCH_STATUS = 0
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BEGIN
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BEGIN TRY
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------------------------------------------------------------------
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-- Reset per-job variables
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------------------------------------------------------------------
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SET @FreqInterval = 0;
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SET @computedFreq = 0;
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SET @StartTimeInt = NULL;
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SET @ScheduleName = NULL;
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------------------------------------------------------------------
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-- Correctly format the start time (HHMMSS without extra zeros)
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------------------------------------------------------------------
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SET @StartTime = LTRIM(RTRIM(ISNULL(@StartTime, '00:00:00')));
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-- Parse time and convert to HHMMSS integer
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DECLARE @TimeParts TABLE (part NVARCHAR(10), idx INT);
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INSERT INTO @TimeParts (part, idx)
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SELECT value, ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) - 1
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FROM STRING_SPLIT(LEFT(@StartTime, 8), ':');
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DECLARE @Hours INT, @Minutes INT, @Seconds INT;
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SELECT @Hours = CAST(part AS INT) FROM @TimeParts WHERE idx = 0;
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SELECT @Minutes = CAST(part AS INT) FROM @TimeParts WHERE idx = 1;
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SELECT @Seconds = CAST(part AS INT) FROM @TimeParts WHERE idx = 2;
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-- Ensure valid time ranges
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SET @Hours = ISNULL(@Hours, 0);
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SET @Minutes = ISNULL(@Minutes, 0);
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SET @Seconds = ISNULL(@Seconds, 0);
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IF @Hours < 0 OR @Hours > 23 SET @Hours = 0;
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IF @Minutes < 0 OR @Minutes > 59 SET @Minutes = 0;
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IF @Seconds < 0 OR @Seconds > 59 SET @Seconds = 0;
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SET @StartTimeInt = (@Hours * 10000) + (@Minutes * 100) + @Seconds;
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SET @ScheduleName = CONCAT(@JobName, '_WeeklySchedule');
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------------------------------------------------------------------
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-- Parse JSON days using a local temporary table
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------------------------------------------------------------------
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CREATE TABLE #Days (DayName NVARCHAR(10));
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INSERT INTO #Days (DayName)
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SELECT TRIM(value)
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FROM OPENJSON(ISNULL(@FrequencyPattern, '{}'), '$.Days');
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------------------------------------------------------------------
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-- Compute bitmask correctly (values should be 1-127)
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------------------------------------------------------------------
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SELECT @computedFreq = ISNULL(SUM(
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CASE UPPER(DayName)
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WHEN 'SUN' THEN 1
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WHEN 'MON' THEN 2
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WHEN 'TUE' THEN 4
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WHEN 'WED' THEN 8
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WHEN 'THU' THEN 16
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WHEN 'FRI' THEN 32
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WHEN 'SAT' THEN 64
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ELSE 0
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END
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), 0)
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FROM #Days;
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DROP TABLE #Days; -- Explicitly drop the temp table
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SET @FreqInterval = ISNULL(@computedFreq, 0);
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------------------------------------------------------------------
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-- Validate freq_interval (must be 1..127)
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------------------------------------------------------------------
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IF @FreqInterval < 1 OR @FreqInterval > 127
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BEGIN
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PRINT 'Warning: Weekly job ' + @JobName +
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' has invalid freq_interval (' + ISNULL(CAST(@FreqInterval AS VARCHAR(10)), 'NULL') +
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'). Days found: ' + ISNULL(@FrequencyPattern, 'None') + '. Skipping.';
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FETCH NEXT FROM job_cursor INTO @JobName, @FrequencyPattern, @StartTime;
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CONTINUE;
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END
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------------------------------------------------------------------
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-- Debug output to verify calculations
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------------------------------------------------------------------
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PRINT 'Job: ' + @JobName +
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', Days: ' + @FrequencyPattern +
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', FreqInterval: ' + CAST(@FreqInterval AS VARCHAR(3)) +
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', StartTime: ' + CAST(@StartTimeInt AS VARCHAR(6));
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------------------------------------------------------------------
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-- Safely detach and delete any existing schedule with this name
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-- Use TRY/CATCH for schedule operations since non-existence is expected
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------------------------------------------------------------------
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BEGIN TRY
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DECLARE @schedule_id INT;
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DECLARE @attach_count INT;
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-- Check if schedule exists and get its ID
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SELECT @schedule_id = s.schedule_id
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FROM msdb.dbo.sysschedules s
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JOIN msdb.dbo.sysjobschedules js ON s.schedule_id = js.schedule_id
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JOIN msdb.dbo.sysjobs j ON j.job_id = js.job_id
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WHERE j.name = @JobName AND s.name = @ScheduleName;
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IF @schedule_id IS NOT NULL
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BEGIN
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-- Detach from this job (if attached)
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EXEC msdb.dbo.sp_detach_schedule
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@job_name = @JobName,
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@schedule_name = @ScheduleName;
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-- Check if schedule still attached to other jobs
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SELECT @attach_count = COUNT(*)
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FROM msdb.dbo.sysjobschedules js
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WHERE js.schedule_id = @schedule_id;
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IF @attach_count = 0
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BEGIN
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EXEC msdb.dbo.sp_delete_schedule
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@schedule_name = @ScheduleName;
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PRINT 'Existing schedule deleted: ' + @ScheduleName;
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END
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ELSE
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BEGIN
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PRINT 'Notice: schedule ' + @ScheduleName + ' could not be deleted because it is still attached to other jobs.';
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END
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END
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END TRY
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BEGIN CATCH
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-- Schedule operations might fail if schedule doesn't exist, which is fine
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PRINT 'Notice: ' + ERROR_MESSAGE() + ' - proceeding with new schedule creation.';
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END CATCH
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------------------------------------------------------------------
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-- Create the unified weekly schedule with subday config
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------------------------------------------------------------------
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EXEC msdb.dbo.sp_add_schedule
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@schedule_name = @ScheduleName,
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@enabled = 1,
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@freq_type = 8, -- Weekly
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@freq_interval = @FreqInterval, -- Bitmask of weekdays
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@freq_recurrence_factor = 1, -- Every week
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@freq_subday_type = 1, -- Once per day
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@freq_subday_interval = 1,
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@active_start_time = @StartTimeInt,
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@active_start_date = @ActiveDate;
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------------------------------------------------------------------
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-- Attach the schedule to the job
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------------------------------------------------------------------
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EXEC msdb.dbo.sp_attach_schedule
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@job_name = @JobName,
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@schedule_name = @ScheduleName;
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PRINT 'Weekly schedule created for job: ' + @JobName +
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' (Days=' + CAST(@FreqInterval AS VARCHAR(10)) +
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', Time=' + RIGHT('000000' + CAST(@StartTimeInt AS VARCHAR(6)), 6) + ')';
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END TRY
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BEGIN CATCH
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PRINT 'Error scheduling job ' + ISNULL(@JobName, 'Unknown') + ': ' + ERROR_MESSAGE();
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END CATCH;
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FETCH NEXT FROM job_cursor INTO @JobName, @FrequencyPattern, @StartTime;
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END
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CLOSE job_cursor;
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DEALLOCATE job_cursor;
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PRINT 'All weekly job schedules processed for ' + @dbName;
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END;
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GO
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