PL/SQL procedure compile disconnects me from oracle -


i'm trying compile procedure in pl/sql developer. first time try error (which expected). added semicolon end of line causes error. when try compile semicolon, message saying i've been disconnected oracle. again in procedure, "with" clause around it. haven't been able find threads similar issue. or suggestions appreciated.

i can't show code because of confidentiality here's example of lines causing issues:

  select *   variable1, variable2   mytable3**;**--adding semicolon cause me disconnect oracle.    variable3 := round(variable1 - variable2, 0);


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