Merge pull request BrentOzarULTD#846 from BrentOzarULTD/issue_845/brent

BrentOzarULTD#845 sp_BlitzWho - use read uncommitted

Author: BlitzErik

sp_BlitzWho.sql

@@ -30,7 +30,7 @@ Known limitations of this version:
    
 MIT License
 
-Copyright (c) 2016 Brent Ozar Unlimited
+Copyright (c) 2017 Brent Ozar Unlimited
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -85,7 +85,7 @@ SELECT @ProductVersionMajor = SUBSTRING(@ProductVersion, 1,CHARINDEX('.', @Produ
 
 IF @ProductVersionMajor > 9 and @ProductVersionMajor < 11
 BEGIN
-SET @StringToExecute = N'
+SET @StringToExecute = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
 					    SELECT  GETDATE() AS run_date ,
 			            COALESCE(
 							CONVERT(VARCHAR(20), (r.total_elapsed_time / 1000) / 86400) + '':'' + CONVERT(VARCHAR(20), DATEADD(s, (r.total_elapsed_time / 1000), 0), 114) ,
@@ -235,7 +235,7 @@ SELECT @EnhanceFlag =
 		     ELSE 0 
 	    END
 
-SELECT @StringToExecute = N'
+SELECT @StringToExecute = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
 					    SELECT  GETDATE() AS run_date ,
 			            COALESCE(
 							CONVERT(VARCHAR(20), (r.total_elapsed_time / 1000) / 86400) + '':'' + CONVERT(VARCHAR(20), DATEADD(s, (r.total_elapsed_time / 1000), 0), 114) ,