Best way to determine Server Product version and execute SQL accordingly?

This is a two-pronged question: Scenario:

I have a script to query MSDB and get me details of job schedules. Obviously, the tables differ from SQL 2000 to SQL 2005. Hence, I want to check the version running on the box and query accordingly. Now the questions:

Question 1:

This is what I am doing.

IF LEFT(CAST(SERVERPROPERTY('ProductVersion') As Varchar),1)='8'
BEGIN
PRINT 'SQL 2000'--Actual Code Goes Here
END
IF LEFT(CAST(SERVERPROPERTY('ProductVersion') As Varchar),1)='9'
BEGIN
PRINT 'SQL 2005'--Actual Code Goes Here
END

Is there a better way of doing this?

Question 2:

Though the above script runs fine on both 2000 and 2005 boxes, when I replace the “Print..” statements with my actual code, it runs fine on a 2000 box, but when executed on a 2005 box,tries to run the code block meant for 2000 and returns errors.

Here is the actual code:

USE [msdb]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--Check SQL Server Version
IF LEFT(CAST(SERVERPROPERTY('ProductVersion') As Varchar),1)='9'
BEGIN
SELECT @@SERVERNAME
,sysjobs.name
,dbo.udf_schedule_description(dbo.sysschedules.freq_type, dbo.sysschedules.freq_interval,  
dbo.sysschedules.freq_subday_type, dbo.sysschedules.freq_subday_interval, dbo.sysschedules.freq_relative_interval,  
dbo.sysschedules.freq_recurrence_factor, dbo.sysschedules.active_start_date, dbo.sysschedules.active_end_date,  
dbo.sysschedules.active_start_time, dbo.sysschedules.active_end_time) AS [Schedule Description]
, CONVERT(CHAR(8), CASE WHEN LEN(msdb.dbo.sysschedules.Active_Start_Time) = 3
                         THEN CAST('00:0' + LEFT(msdb.dbo.sysschedules.Active_Start_Time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          2, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysschedules.Active_Start_Time) = 4
                         THEN CAST('00:' 
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          1, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          3, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysschedules.Active_Start_Time) = 5
                         THEN CAST('0' + LEFT(msdb.dbo.sysschedules.Active_Start_Time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          2, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          4, 2) AS VARCHAR(8))
                         WHEN msdb.dbo.sysschedules.Active_Start_Time = 0
                         THEN '00:00:00'
                         ELSE CAST(LEFT(msdb.dbo.sysschedules.Active_Start_Time, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          3, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.Active_Start_Time AS VARCHAR(6)),
                                          5, 2) AS VARCHAR(8))
                    END, 108) AS Start_Time,
       CONVERT(CHAR(8), CASE WHEN LEN(msdb.dbo.sysschedules.active_end_time) = 3
                         THEN CAST('00:0' + LEFT(msdb.dbo.sysschedules.active_end_time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          2, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysschedules.active_end_time) = 4
                         THEN CAST('00:' 
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          1, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          3, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysschedules.active_end_time) = 5
                         THEN CAST('0' + LEFT(msdb.dbo.sysschedules.active_end_time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          2, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          4, 2) AS VARCHAR(8))
                         WHEN msdb.dbo.sysschedules.active_end_time = 0
                         THEN '00:00:00'
                         ELSE CAST(LEFT(msdb.dbo.sysschedules.active_end_time, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          3, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysschedules.active_end_time AS VARCHAR(6)),
                                          5, 2) AS VARCHAR(8))
                    END, 108) AS End_Time
,CAST(CASE WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 1
                         THEN CAST('00:00:0' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 1)AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 2
                         THEN CAST('00:00:' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 2)AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 3
                         THEN CAST('00:0' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          2, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 4
                         THEN CAST('00:' 
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          1, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          3, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 5
                         THEN CAST('0' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          2, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          4, 2) AS VARCHAR(8))
                         WHEN msdb.dbo.sysjobservers.last_run_duration = 0
                         THEN '00:00:00'
                         ELSE CAST(LEFT(msdb.dbo.sysjobservers.last_run_duration, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          3, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          5, 2) AS VARCHAR(8))
                    END AS VARCHAR(8))  AS LastRunDuration
FROM msdb.dbo.sysjobs INNER JOIN
msdb.dbo.syscategories ON msdb.dbo.sysjobs.category_id = msdb.dbo.syscategories.category_id LEFT OUTER JOIN
msdb.dbo.sysoperators ON msdb.dbo.sysjobs.notify_page_operator_id = msdb.dbo.sysoperators.id LEFT OUTER JOIN
msdb.dbo.sysjobservers ON msdb.dbo.sysjobs.job_id = msdb.dbo.sysjobservers.job_id LEFT OUTER JOIN
msdb.dbo.sysjobschedules ON msdb.dbo.sysjobschedules.job_id = msdb.dbo.sysjobs.job_id LEFT OUTER JOIN
msdb.dbo.sysschedules ON msdb.dbo.sysjobschedules.schedule_id = msdb.dbo.sysschedules.schedule_id
WHERE sysjobs.enabled = 1 AND msdb.dbo.sysschedules.Active_Start_Time IS NOT NULL
ORDER BY Start_time,sysjobs.name
END

IF LEFT(CAST(SERVERPROPERTY('ProductVersion') As Varchar),1)='8'
BEGIN
SELECT @@SERVERNAME
,sysjobs.name
,dbo.udf_schedule_description(sysjobschedules.freq_type, sysjobschedules.freq_interval,  
sysjobschedules.freq_subday_type, sysjobschedules.freq_subday_interval, sysjobschedules.freq_relative_interval,  
sysjobschedules.freq_recurrence_factor, sysjobschedules.active_start_date, sysjobschedules.active_end_date,  
sysjobschedules.active_start_time, sysjobschedules.active_end_time) AS [Schedule Description]
, CONVERT(CHAR(8), CASE WHEN LEN(msdb.dbo.sysjobschedules.Active_Start_Time) = 3
                         THEN CAST('00:0' + LEFT(msdb.dbo.sysjobschedules.Active_Start_Time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          2, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobschedules.Active_Start_Time) = 4
                         THEN CAST('00:' 
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          1, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          3, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobschedules.Active_Start_Time) = 5
                         THEN CAST('0' + LEFT(msdb.dbo.sysjobschedules.Active_Start_Time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          2, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          4, 2) AS VARCHAR(8))
                         WHEN msdb.dbo.sysjobschedules.Active_Start_Time = 0
                         THEN '00:00:00'
                         ELSE CAST(LEFT(msdb.dbo.sysjobschedules.Active_Start_Time, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          3, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.Active_Start_Time AS VARCHAR(6)),
                                          5, 2) AS VARCHAR(8))
                    END, 108) AS Start_Time,
       CONVERT(CHAR(8), CASE WHEN LEN(msdb.dbo.sysjobschedules.active_end_time) = 3
                         THEN CAST('00:0' + LEFT(msdb.dbo.sysjobschedules.active_end_time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          2, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobschedules.active_end_time) = 4
                         THEN CAST('00:' 
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          1, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          3, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobschedules.active_end_time) = 5
                         THEN CAST('0' + LEFT(msdb.dbo.sysjobschedules.active_end_time, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          2, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          4, 2) AS VARCHAR(8))
                         WHEN msdb.dbo.sysjobschedules.active_end_time = 0
                         THEN '00:00:00'
                         ELSE CAST(LEFT(msdb.dbo.sysjobschedules.active_end_time, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          3, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobschedules.active_end_time AS VARCHAR(6)),
                                          5, 2) AS VARCHAR(8))
                    END, 108) AS End_Time
,CAST(CASE WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 1
                         THEN CAST('00:00:0' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 1)AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 2
                         THEN CAST('00:00:' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 2)AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 3
                         THEN CAST('00:0' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          2, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 4
                         THEN CAST('00:' 
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          1, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          3, 2) AS VARCHAR(8))
                         WHEN LEN(msdb.dbo.sysjobservers.last_run_duration) = 5
                         THEN CAST('0' + LEFT(msdb.dbo.sysjobservers.last_run_duration, 1) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          2, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          4, 2) AS VARCHAR(8))
                         WHEN msdb.dbo.sysjobservers.last_run_duration = 0
                         THEN '00:00:00'
                         ELSE CAST(LEFT(msdb.dbo.sysjobservers.last_run_duration, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          3, 2) + ':'
                              + SUBSTRING(CAST(msdb.dbo.sysjobservers.last_run_duration AS VARCHAR(6)),
                                          5, 2) AS VARCHAR(8))
                    END AS VARCHAR(8))  AS LastRunDuration
FROM sysjobs LEFT OUTER JOIN 
msdb.dbo.sysjobservers ON msdb.dbo.sysjobs.job_id = msdb.dbo.sysjobservers.job_id INNER JOIN
sysjobschedules ON sysjobs.job_id = sysjobschedules.job_id 
WHERE sysjobs.enabled = 1
ORDER BY Start_time,sysjobs.name
END

This script requires a udf in MSDB. Here is the code for the function:

USE [msdb]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[udf_schedule_description] (@freq_type INT ,
 @freq_interval INT ,
 @freq_subday_type INT ,
 @freq_subday_interval INT ,
 @freq_relative_interval INT ,
 @freq_recurrence_factor INT ,
 @active_start_date INT ,
 @active_end_date INT,
 @active_start_time INT ,
 @active_end_time INT ) 
RETURNS NVARCHAR(255) AS 
BEGIN
DECLARE @schedule_description NVARCHAR(255)
DECLARE @loop INT
DECLARE @idle_cpu_percent INT
DECLARE @idle_cpu_duration INT

IF (@freq_type = 0x1) -- OneTime
 BEGIN
 SELECT @schedule_description = N'Once on ' + CONVERT(NVARCHAR, @active_start_date) + N' at ' + CONVERT(NVARCHAR, cast((@active_start_time / 10000) as varchar(10)) + ':' + right('00' + cast((@active_start_time % 10000) / 100 as varchar(10)),2))
 RETURN @schedule_description
 END
IF (@freq_type = 0x4) -- Daily
 BEGIN
 SELECT @schedule_description = N'Every day '
 END
IF (@freq_type = 0x8) -- Weekly
 BEGIN
 SELECT @schedule_description = N'Every ' + CONVERT(NVARCHAR, @freq_recurrence_factor) + N' week(s) on '
 SELECT @loop = 1
 WHILE (@loop <= 7)
 BEGIN
 IF (@freq_interval & POWER(2, @loop - 1) = POWER(2, @loop - 1))
 SELECT @schedule_description = @schedule_description + DATENAME(dw, N'1996120' + CONVERT(NVARCHAR, @loop)) + N', '
 SELECT @loop = @loop + 1
 END
 IF (RIGHT(@schedule_description, 2) = N', ')
 SELECT @schedule_description = SUBSTRING(@schedule_description, 1, (DATALENGTH(@schedule_description) / 2) - 2) + N' '
 END
IF (@freq_type = 0x10) -- Monthly
 BEGIN
 SELECT @schedule_description = N'Every ' + CONVERT(NVARCHAR, @freq_recurrence_factor) + N' months(s) on day ' + CONVERT(NVARCHAR, @freq_interval) + N' of that month '
 END
IF (@freq_type = 0x20) -- Monthly Relative
 BEGIN
 SELECT @schedule_description = N'Every ' + CONVERT(NVARCHAR, @freq_recurrence_factor) + N' months(s) on the '
 SELECT @schedule_description = @schedule_description +
 CASE @freq_relative_interval
 WHEN 0x01 THEN N'first '
 WHEN 0x02 THEN N'second '
 WHEN 0x04 THEN N'third '
 WHEN 0x08 THEN N'fourth '
 WHEN 0x10 THEN N'last '
 END +
 CASE
 WHEN (@freq_interval > 00)
 AND (@freq_interval < 08) THEN DATENAME(dw, N'1996120' + CONVERT(NVARCHAR, @freq_interval))
 WHEN (@freq_interval = 08) THEN N'day'
 WHEN (@freq_interval = 09) THEN N'week day'
 WHEN (@freq_interval = 10) THEN N'weekend day'
 END + N' of that month '
 END
IF (@freq_type = 0x40) -- AutoStart
 BEGIN
 SELECT @schedule_description = FORMATMESSAGE(14579)
 RETURN @schedule_description
 END
IF (@freq_type = 0x80) -- OnIdle
 BEGIN
 EXECUTE master.dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE',
 N'SOFTWAREMicrosoftMSSQLServerSQLServerAgent',
 N'IdleCPUPercent',
 @idle_cpu_percent OUTPUT,
 N'no_output'
 EXECUTE master.dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE',
 N'SOFTWAREMicrosoftMSSQLServerSQLServerAgent',
 N'IdleCPUDuration',
 @idle_cpu_duration OUTPUT,
 N'no_output'
 SELECT @schedule_description = FORMATMESSAGE(14578, ISNULL(@idle_cpu_percent, 10), ISNULL(@idle_cpu_duration, 600))
 RETURN @schedule_description
 END
-- Subday stuff
 SELECT @schedule_description = @schedule_description +
 CASE @freq_subday_type
 WHEN 0x1 THEN N'at ' + CONVERT(NVARCHAR, cast(
 CASE WHEN LEN(cast((@active_start_time / 10000)as varchar(10)))=1
     THEN  '0'+cast((@active_start_time / 10000) as varchar(10))
     ELSE cast((@active_start_time / 10000) as varchar(10))
     END    
as varchar(10)) + ':' + right('00' + cast((@active_start_time % 10000) / 100 as varchar(10)),2))
 WHEN 0x2 THEN N'every ' + CONVERT(NVARCHAR, @freq_subday_interval) + N' second(s)'
 WHEN 0x4 THEN N'every ' + CONVERT(NVARCHAR, @freq_subday_interval) + N' minute(s)'
 WHEN 0x8 THEN N'every ' + CONVERT(NVARCHAR, @freq_subday_interval) + N' hour(s)'
 END
 IF (@freq_subday_type IN (0x2, 0x4, 0x8))
 SELECT @schedule_description = @schedule_description + N' between ' +
CONVERT(NVARCHAR, cast(
CASE WHEN LEN(cast((@active_start_time / 10000)as varchar(10)))=1
     THEN  '0'+cast((@active_start_time / 10000) as varchar(10))
     ELSE cast((@active_start_time / 10000) as varchar(10))
     END    
as varchar(10)) + ':' + right('00' + cast((@active_start_time % 10000) / 100 as varchar(10)),2) ) 
+ N' and ' +
CONVERT(NVARCHAR, cast(
 CASE WHEN LEN(cast((@active_end_time / 10000)as varchar(10)))=1
     THEN  '0'+cast((@active_end_time / 10000) as varchar(10))
     ELSE cast((@active_end_time / 10000) as varchar(10))
     END    
as varchar(10)) + ':' + right('00' + cast((@active_end_time % 10000) / 100 as varchar(10)),2) )


RETURN @schedule_description
END

I have got this far and have spent too much time trying to find out what the problem is. Please help.

Answer

the errors are compile time (I ran on 2005):

Msg 207, Level 16, State 1, Line 106
Invalid column name 'freq_type'.
Msg 207, Level 16, State 1, Line 106
Invalid column name 'freq_interval'.
Msg 207, Level 16, State 1, Line 107
Invalid column name 'freq_subday_type'.
Msg 207, Level 16, State 1, Line 107
Invalid column name 'freq_subday_interval'.
Msg 207, Level 16, State 1, Line 107
Invalid column name 'freq_relative_interval'.
Msg 207, Level 16, State 1, Line 108
Invalid column name 'freq_recurrence_factor'.
Msg 207, Level 16, State 1, Line 108
Invalid column name 'active_start_date'.
Msg 207, Level 16, State 1, Line 108
Invalid column name 'active_end_date'.
Msg 207, Level 16, State 1, Line 109
Invalid column name 'active_start_time'.
Msg 207, Level 16, State 1, Line 109
Invalid column name 'active_end_time'.
Msg 207, Level 16, State 1, Line 110

I added PRINTs and they never appear.

your code has problems because the column names are not compatible with the database you are running. SQL Server 2005 does not have a “sysjobschedules.freq_type” column.

Make a stored procedure XYZ, put the 2000 version in the 2000 database, put the same XYZ procedure on the 2005 machine and put the 2005 version in it. No IF necessary…

EDIT

run this code:

PRINT 'Works'

now run this code

PRINT 'will not see this'
error

try this:

PRINT 'will not see this'
SELECT xyz from sysjobschedules

now try running this, but only highlight the PRINT line:

PRINT 'you can see this'  --only select this line of code and run it
SELECT xyz from sysjobschedules

see how compile errors prevent anything from running

EDIT

you might try something like this…

DECLARE @Query varchar(max)

IF LEFT(CAST(SERVERPROPERTY('ProductVersion') As Varchar),1)='8'
BEGIN
    SET @Query=......
END
IF LEFT(CAST(SERVERPROPERTY('ProductVersion') As Varchar),1)='9'
BEGIN
    SET @Query=......
END

EXEC (@Query)