Regarding small help in update stmt

Question

Hi,
i am updating 47 months data in PL/SQL block.
when i am trying to execute it is getting " invalid relation operator at line 30"
Here i am giving my pl/sql block.can you please find where is the error
DECLARE
Type reco_ref is REF CURSOR;
reco_cur reco_ref;
ac_no master.acct_nbr%type;
m_dt master.mdate%type;
d_rec master.rec%type;
d_damt master.dlamt%type;
dbal master.balamt%type;
v_m_dt VARCHAR2(8);
m_dt1 DATE:=to_date(substr('_20021031',2),'yyyymmdd');
err_cd NUMBER;
err_text VARCHAR2(200);
stmt_str VARCHAR2(4000);
stmt_str1 VARCHAR2(10000);
BEGIN
for v_ctr in 1 .. 47
loop
v_m_dt := to_char(m_dt1, 'YYYYMMDD');
stmt_str:= 'SELECT acct_nbr,mdate,rec,dlamt,balamt FROM master partition (p'||v_mis_dt||') where rec < 0';
open reco_cur for stmt_str;
LOOP
fetch reco_cur into ac_no,m_dt,d_rec,d_damt,dbal;
EXIT WHEN reco_cur%NOTFOUND;
stmt_str1:= 'update master partition (p'||v_m_dt ||') set stage =';
stmt_str1:= stmt_str1 || ' (case when :d_damt>0 and :dbal>0 and (:d_damt/:dbal)<0.2 then ''10%''';
stmt_str1:= stmt_str1 || ' when :d_damt>0 and :dbal>0 and (:d_damt/:dbal)>= 0.2 and (:d_damt/:dbal) < 1 then ''50%''';
stmt_str1:= stmt_str1 || ' when :d_damt>0 and :dbal>0 and (:d_damt/:dbal) =1 then ''100%''';
stmt_str1:= stmt_str1 || ' when nvl(:d_damt,0) =0 and nvl(:dbal,0) =0 then ''100%'' end)';
stmt_str1:= stmt_str1 || ' where acct_nbr=:ac_no and mdate=:m_dt';
execute immediate stmt_str1 using d_damt,dbal,d_damt,dbal,
d_damt,dbal,d_damt,dbal,d_damt,dbal,
d_damt,dbal,d_damt,dbal,
d_damt,dbal,ac_no,m_dt;
END LOOP;
COMMIT;
insert into err values(stmt_str1);
commit;
m_dt1:= add_months(m_dt1, 1);
end loop;
END;
Thanks in advance

Answer 1

Not sure which line no is 30
looks like error with spaces
stmt_str1:= 'update master partition (p'||v_m_dt ||') set stage =';
stmt_str1:= stmt_str1 || ' (case when :d_damt>0 and :dbal>0 and (:d_damt/:dbal)<0.2 then ''10%''';
stmt_str1:= stmt_str1 || ' when :d_damt>0 and :dbal>0 and (:d_damt/:dbal)>= 0.2 and (:d_damt/:dbal) < 1 then ''50%''';
stmt_str1:= stmt_str1 || ' when :d_damt>0 and :dbal>0 and (:d_damt/:dbal) =1 then ''100%''';
stmt_str1:= stmt_str1 || ' when nvl(:d_damt,0) =0 and nvl(:dbal,0) =0 then ''100%'' end)';
stmt_str1:= stmt_str1 || ' where acct_nbr=:ac_no and mdate=:m_dt';
try to put spaces when you concate string, may be it it joining to gether.
Also print stmt_str1 just before execute immediate so you will see any error in the update statement.
If you can not find please post that here with error, so someone can help