That is because we haven’t really set out to support the execution of anonymous blocks of PL/SQL, but we do intend to support the creation and updation of procedures, packages, package bodies, functions and triggers among others.
Having said that, I will check internally whether we can support something like this.
We will be reviewing this shortly, but could you do us a favor by listing out what other kind of block statements you would like to see supported in the MyEclipse SQL editor? Perhaps you could run through your script library and see what currently does not run with MyEclipse. By block statements I mean a bunch of statements that should be sent to the server in a single go, not separate statements like the how your example above was (incorrectly) sent.
Your suggestions would help focus our efforts in the right direction.
Best,
Brian.