SQL Server skips RAISERROR

Question

Simple code. Very strange behaviour, triple checked this. @filePath and @path are NVARCHAR(260) and @exists is INT. dbo.WriteToFile writes a file to disk, in this case an empty file.

EXEC master..xp_fileexist @filePath, @exists OUTPUT
print @exists
IF @exists = 0
BEGIN
  EXEC dbo.WriteToFile N'', @path, @filename
  RAISERROR('A', 20, -1) WITH log
END
RAISERROR('B', 20, -1) WITH log

When I run this code for the first time and @exists is 0, it goes into the if block. File is created as expected. Confirmed that. But RAISERROR in the if block is not called. Instead only the RAISERROR outside the if block is called.

But if I replace the first RAISERROR ('A') with PRINT 'blabla' the print statement is called as expected.

If I replace @exists = 0 with 1=1 and keep the first RAISERROR ('A') as is, again everything behaves correctly and the first RAISERROR ('A') is called.

Can someone explain this?

Oh yeah, and why does

print 'bla'
raiserror('bla', 20, -1) with log

in a brand new query window get me this:

bla
Meldung 2745, Ebene 16, Status 2, Zeile 3
Der Prozess mit der ID 54 hat den Benutzerfehler 50000, Schweregrad 20, ausgelöst. Dieser Prozess wird von SQL Server beendet.
bla
Meldung 2745, Ebene 16, Status 2, Zeile 3
Der Prozess mit der ID 54 hat den Benutzerfehler 50000, Schweregrad 20, ausgelöst. Dieser Prozess wird von SQL Server beendet.

This is 2 times the same message. Maybe my SQL server is configured incorrectly?

I will post the WriteToFile procedure too if you are interested, maybe it helps, I have this procedure from the web, but it works perfectly, but maybe it produces the RAISERROR behaviour:

ALTER PROCEDURE dbo.WriteToFile
 (
@String Varchar(max), --8000 in SQL Server 2000
@Path VARCHAR(255),
@Filename VARCHAR(100)
)
AS
BEGIN
DECLARE  @objFileSystem int
                ,@objTextStream int,
        @objErrorObject int,
        @strErrorMessage Varchar(1000),
            @Command varchar(1000),
            @hr int,
        @fileAndPath varchar(80)

select @strErrorMessage='opening the File System Object'
EXECUTE @hr = sp_OACreate  'Scripting.FileSystemObject' , @objFileSystem OUT

Select @FileAndPath=@path+'\'+@filename
if @HR=0 Select @objErrorObject=@objFileSystem , @strErrorMessage='Creating file "'+@FileAndPath+'"'
if @HR=0 execute @hr = sp_OAMethod   @objFileSystem   , 'CreateTextFile'
    , @objTextStream OUT, @FileAndPath,2,True

if @HR=0 Select @objErrorObject=@objTextStream, 
    @strErrorMessage='writing to the file "'+@FileAndPath+'"'
if @HR=0 execute @hr = sp_OAMethod  @objTextStream, 'Write', Null, @String

if @HR=0 Select @objErrorObject=@objTextStream, @strErrorMessage='closing the file "'+@FileAndPath+'"'
if @HR=0 execute @hr = sp_OAMethod  @objTextStream, 'Close'

if @hr<>0
    begin
    Declare 
        @Source varchar(255),
        @Description Varchar(255),
        @Helpfile Varchar(255),
        @HelpID int

    EXECUTE sp_OAGetErrorInfo  @objErrorObject, 
        @source output,@Description output,@Helpfile output,@HelpID output
    Select @strErrorMessage='Error whilst '
            +coalesce(@strErrorMessage,'doing something')
            +', '+coalesce(@Description,'')
    raiserror (@strErrorMessage,16,1)
    end
EXECUTE  sp_OADestroy @objTextStream
EXECUTE sp_OADestroy @objTextStream
END

edit: running SQL Server 2008 R2

Answer 1

I dont know if you really need a "20" error level, but please try with:

RAISERROR('A', 16, -1) WITH log