does it run anything after a catch block? - sql

Question

I'm working with SQL Server Express 2012 and I have this stored procedure:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [dbo].[usp_AsyncExecActivated]
as
begin
set nocount on;
declare #h uniqueidentifier
, #messageTypeName sysname
, #messageBody varbinary(max)
, #xmlBody xml
, #procedureName sysname
, #startTime datetime
, #finishTime datetime
, #execErrorNumber int
, #execErrorMessage nvarchar(2048)
, #xactState smallint
, #token uniqueidentifier;
begin transaction;
begin try;
receive top(1)
#h = [conversation_handle]
, #messageTypeName = [message_type_name]
, #messageBody = [message_body]
from [AsyncExecQueue];
if (#h is not null)
begin
if (#messageTypeName = N'DEFAULT')
begin
-- The DEFAULT message type is a procedure invocation.
-- Extract the name of the procedure from the message body.
--
select #xmlBody = CAST(#messageBody as xml);
select #procedureName = #xmlBody.value(
'(//procedure/name)[1]'
, 'sysname');
update dbo.Configurations with (serializable) set conf_value = 1
where sp_name = #procedureName
if ##rowcount = 0
begin
insert dbo.Configurations(sp_name, conf_value) values (#procedureName, 1)
end
save transaction usp_AsyncExec_procedure;
select #startTime = GETUTCDATE();
begin try
exec #procedureName;
end try
begin catch
-- This catch block tries to deal with failures of the procedure execution
-- If possible it rolls back to the savepoint created earlier, allowing
-- the activated procedure to continue. If the executed procedure
-- raises an error with severity 16 or higher, it will doom the transaction
-- and thus rollback the RECEIVE. Such case will be a poison message,
-- resulting in the queue disabling.
--
select #execErrorNumber = ERROR_NUMBER(),
#execErrorMessage = ERROR_MESSAGE(),
#xactState = XACT_STATE();
if (#xactState = -1)
begin
rollback;
raiserror(N'Unrecoverable error in procedure %s: %i: %s', 16, 10,
#procedureName, #execErrorNumber, #execErrorMessage);
end
else if (#xactState = 1)
begin
rollback transaction usp_AsyncExec_procedure;
end
end catch
select #finishTime = GETUTCDATE();
select #token = [conversation_id]
from sys.conversation_endpoints
where [conversation_handle] = #h;
if (#token is null)
begin
raiserror(N'Internal consistency error: conversation not found', 16, 20);
end
update [AsyncExecResults] set
[start_time] = #starttime
, [finish_time] = #finishTime
, [error_number] = #execErrorNumber
, [error_message] = #execErrorMessage
where [token] = #token;
if (0 = ##ROWCOUNT)
begin
raiserror(N'Internal consistency error: token not found', 16, 30);
end
end conversation #h;
end
else if (#messageTypeName = N'http://schemas.microsoft.com/SQL/ServiceBroker/EndDialog')
begin
end conversation #h;
end
else if (#messageTypeName = N'http://schemas.microsoft.com/SQL/ServiceBroker/Error')
begin
declare #errorNumber int
, #errorMessage nvarchar(4000);
select #xmlBody = CAST(#messageBody as xml);
with xmlnamespaces (DEFAULT N'http://schemas.microsoft.com/SQL/ServiceBroker/Error')
select #errorNumber = #xmlBody.value ('(/Error/Code)[1]', 'INT'),
#errorMessage = #xmlBody.value ('(/Error/Description)[1]', 'NVARCHAR(4000)');
-- Update the request with the received error
select #token = [conversation_id]
from sys.conversation_endpoints
where [conversation_handle] = #h;
update [AsyncExecResults] set
[error_number] = #errorNumber
, [error_message] = #errorMessage
where [token] = #token;
end conversation #h;
end
else
begin
raiserror(N'Received unexpected message type: %s', 16, 50, #messageTypeName);
end
end
commit;
end try
begin catch
declare #error int
, #message nvarchar(2048);
select #error = ERROR_NUMBER()
, #message = ERROR_MESSAGE()
, #xactState = XACT_STATE();
if (#xactState <> 0)
begin
rollback;
end;
update dbo.Configurations with (serializable)
set conf_value = 0
where sp_name = #procedureName
raiserror(N'Error: %i, %s', 1, 60, #error, #message) with log;
end catch
update dbo.Configurations with (serializable) set conf_value = 0
where sp_name = #procedureName
end
I have to do this:
update dbo.Configurations with (serializable)
set conf_value = 0
where sp_name = #procedureName
Every time before stored procedure ends. I'll check dbo.Configurations to see if usp_AsyncExecActivated is running or not.
Do I have to add that update on CATCH BLOCK and after the CATCH BLOCK?
I'm not sure if after catch block runs anything else or it ends stored procedure execution.

Answer 1

It depends on severity, if there's a session sborting error it will stop executing the procedure. Otherwise, it will continue after CATCH block. See this simplified example:
create proc x
as
begin try
select 1/0
end try
begin catch
select error_message()
raiserror (N'Received unexpected message type', 16, 50);
end catch
select 'after catch'
go
exec x;