Error Handling in Sybase

Question

Is there a way to handle errors in SYBASE, such as the TRY-CATCH block you can use in MS SQL Server, Oracle, etc?

Answer 1

1st solution.

You can't catch an exception this way on Sybase. Before you update you have to check data:

if not exists
(
  select 1 from table2
  where id = 1
)
begin
  update table2
  set id = 1 
  where id = 30
end
else
begin
  print 'rolled back'
  rollback
end

2nd solution.

You can also put an update command to procedure, then you can catch an exception. Create procedure:

create procedure myproc
as
begin
  update table2
  set id = 1 
  where id = 30
end

and run it as below:

begin tran

update table1
set name = 'new name'
where name = 'old name'

exec myproc

IF @@error = 0
begin
    print 'commited'
    commit
end
else
begin
    print 'rolled back'
    rollback
end