Oracle 11g：Sql Developer：如何执行多个匿名块

Question

I am trying to execute a list of anonymous block in sql developer. But when ever execute a anonymous block example

Begin
 execute do something
end;

it works but if i execute more than one anonymous block such as

Begin
 execute do something
end;
Begin
 execute do something
end;

it throws

PLS-00103: Encountered the symbol "BEGIN" 
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.

Answer 1

Use forward slash in between

Begin
 execute do something
end;
/

Begin
 execute do something
end;
/

Answer 2

Execute all queries in a same begin end block or wrap all in a begin end block.

Like

Begin
 execute do something;
 execute do something;
End;

Or

Begin
Begin
 execute do something;
end;
Begin
 execute do something;
End;
End;