ending an exception satement in ORACLE

I have a select statement with and exception WHEN statement. Lines 1 and 2 compile fine in Oracle but if I also include lines 6 and 7 below it I get a compile error shown at the bottom of my post. I don't know what I am missing here? Why does the addition of lines 6 and 7 cause the compiler error

1  select col1 INT str2 from (SELECT col1 FROM AAA) WHERE ROWNUM <= 1;
2  exception WHEN no_data_found then str2 :='';
3
4
6  select col1 INT strTEMP from (SELECT col1 FROM AAA) WHERE ROWNUM <= 1;
7  exception WHEN no_data_found then strTEMP :='';

Encountered the symbol EXCEPTION when expecting one of the following: (Begin case declare end exit for goto
LVL 2
brgdotnetcontractorAsked:
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johnsoneSenior Oracle DBACommented:
Exceptions are a PL/SQL construct.  You would need something like this:
DECLARE 
  str2 aaa.col1%TYPE; 
  strtemp aaa.col1%TYPE; 
BEGIN 
  BEGIN 
    SELECT col1 
    INTO   str2 
    FROM   ( 
                  SELECT col1 
                  FROM   aaa) 
    WHERE  ROWNUM <= 1; 
   
  EXCEPTION 
  WHEN no_data_found THEN 
    str2 :=''; 
  END 
  BEGIN 
    SELECT col1 
    INTO   strtemp 
    FROM   ( 
                  SELECT col1 
                  FROM   aaa) 
    WHERE  ROWNUM <= 1; 
   
  EXCEPTION 
  WHEN no_data_found THEN 
    strtemp :=''; 
  END 
END 
/

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