Twee PLSQL-statements met begin en einde, afzonderlijk goed werken, maar niet samen?

Oracle kan één SQL-instructie of anoniem PL/SQL-blok tegelijk gebruiken. (In tegenstelling tot SQL Server die een batch tegelijk kan uitsluiten.) Je hebt dus een aantal opties.

1. Wikkel de twee anonieme blokken in een ander anoniem blok:

   begin
     -- Make GC_NAB field for Next Action By Dropdown 
     begin 
     if 'VARCHAR2' = 'NUMBER' and length('VARCHAR2')>0 and length('')>0 then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NAB VARCHAR2(10, ))'; 
     elsif ('VARCHAR2' = 'NUMBER' and length('VARCHAR2')>0 and length('')=0) or 
       'VARCHAR2' = 'VARCHAR2' then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NAB VARCHAR2(10))'; 
     else 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NAB VARCHAR2)'; 
     end if; 
     commit; 
     end; 
     -- Make GC_NABID field for Next Action By Dropdown 
     begin 
     if 'NUMBER' = 'NUMBER' and length('NUMBER')>0 and length('')>0 then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NABID NUMBER(, ))'; 
     elsif ('NUMBER' = 'NUMBER' and length('NUMBER')>0 and length('')=0) or 
       'NUMBER' = 'VARCHAR2' then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NABID NUMBER())'; 
     else 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NABID NUMBER)'; 
     end if; 
     commit; 
     end;
   end;
   

2. Vertel de tool die u gebruikt om de PL/SQL naar Oracle te verzenden om de twee blokken afzonderlijk te verzenden. Hoe u dit moet doen, is gereedschapsspecifiek. In SQL*PLUS, een / op een regel alleen zal dit bereiken:

     -- Make GC_NAB field for Next Action By Dropdown 
     begin 
     if 'VARCHAR2' = 'NUMBER' and length('VARCHAR2')>0 and length('')>0 then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NAB VARCHAR2(10, ))'; 
     elsif ('VARCHAR2' = 'NUMBER' and length('VARCHAR2')>0 and length('')=0) or 
       'VARCHAR2' = 'VARCHAR2' then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NAB VARCHAR2(10))'; 
     else 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NAB VARCHAR2)'; 
     end if; 
     commit; 
     end; 
     /
     -- Make GC_NABID field for Next Action By Dropdown 
     begin 
     if 'NUMBER' = 'NUMBER' and length('NUMBER')>0 and length('')>0 then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NABID NUMBER(, ))'; 
     elsif ('NUMBER' = 'NUMBER' and length('NUMBER')>0 and length('')=0) or 
       'NUMBER' = 'VARCHAR2' then 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NABID NUMBER())'; 
     else 
       execute immediate 'alter table "SERVICEMAIL6"."ETD_GUESTCARE" add(GC_NABID NUMBER)'; 
     end if; 
     commit; 
     end;
     /