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Sunday 28 February 2010

Oracle plsql separate the numerical / numeral / number value and character value

Suppose we have a data like "TEST" table and we want to separate the numeral value and character value from test table .


SQL> select * from test;

X
----------
qqq
111
www
222


SQL> desc test;
Name Null? Type
----------------------------------------- -------- ------------
X VARCHAR2(10)


SQL> desc test2;
Name Null? Type
----------------------------------------- -------- -----------
TEST_ROWID ROWID
X VARCHAR2(10)





BEGIN


FOR i in (select rowid,x from test) LOOP

BEGIN


insert into test1
values(i.x);

exception

when INVALID_NUMBER

then

insert into test2
values(i.rowid,i.x);

DBMS_OUTPUT.PUT_LINE(i.rowid||'Conversion of string to number failed');


END;

END LOOP;

-- EXCEPTION WHEN OTHERS THEN
--

END;



======================
2nd method
======================



declare

y number(10);


BEGIN


FOR i in (select rowid,x from test) LOOP

BEGIN

y := to_number(i.x);



exception

when others
--when INVALID_NUMBER

then

--insert into test2
-- values(i.rowid,i.x);

DBMS_OUTPUT.PUT_LINE(i.rowid||i.x||' Conversion of string to number failed');


END;

END LOOP;

-- EXCEPTION WHEN OTHERS THEN
--

END;



====




declare

n number;

begin

for i in (select END_PAIR from xxx ) loop

begin

n:=to_number(i.END_PAIR);

exception
when others then

dbms_output.put_line(i.END_PAIR);

end;

end loop;

end;

Oracle DBA

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