oracle - Oracle データベース トリガーのコンパイル エラー

Question

テーブル用にこのトリガーをコンパイルしようとしましたが、このエラーが発生し続けます。

エラーメッセージ:

 Compilation failed, line 4 (19:39:58) The line numbers associated with
 compilation errors are relative to the first BEGIN statement. This
 only affects the compilation of database triggers. PL/SQL: ORA-00923:
 FROM keyword not found where expected

 Compilation failed, line 4
 (19:39:58) The line numbers associated with compilation errors are
 relative to the first BEGIN statement. This only affects the
 compilation of database triggers. PL/SQL: SQL Statement ignored

これは私のトリガーです：

Create or Replace Trigger NEWSALARY 
  before insert or update on CREW
  for each row
Declare 
  v_emphours AIRPLANE. EMPWORKINGHOURS%TYPE;
Begin
  select EMPWORKINGHOURS into v_ emphours 
    from "AIRPLANE" 
   where  AIRPLANEID =:NEW."AirPlaneID";
  if v_emphours > 8 then 
   :NEW."Salary":= :NEW."Salary"* 50;
  end if;
End;

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