table name in loop oracle pl/sql - oracle

Question

declare
v_cnt NUMBER;
C SYS_REFCURSOR;
TMP_TBL_NM VARCHAR2(100);
stmt VARCHAR2(1000);
the_name varchar2 (50);
cursor c_table is
(SELECT a.table_name
--, a.column_name, a.constraint_name, c.owner,
--c.r_owner , c_pk.table_name r_table_name, c_pk.constraint_name r_pk
FROM all_cons_columns a
JOIN all_constraints c ON a.owner = c.owner AND a.constraint_name = c.constraint_name
JOIN all_constraints c_pk ON c.r_owner = c_pk.owner AND c.r_constraint_name = c_pk.constraint_name
WHERE c.owner like '%LTR' and c_pk.table_name like '%EnumerationValue%');
begin
stmt := 'SELECT table_name FROM ' || TMP_TBL_NM || ' ORDER BY 1';
OPEN C FOR stmt;
for t in C
loop
FETCH C INTO the_name;
EXIT WHEN C%NOTFOUND;
--my query for each table goes here
end loop;
end;
i want to use table names in loop as to check the records as per my query.
it is giving me error only by getting table name in the loop.
how can i get table name in a loop so that i can fetch rows as per my requirement from each table in a loop.
thanks in advance.

Answer 1

I'm not entirely sure what you want to achieve here, but if it's just the table names you're interested in, you can make your code a lot less complicated doing it this way:
declare
cursor c_table is
SELECT a.table_name
--, a.column_name, a.constraint_name, c.owner,
--c.r_owner , c_pk.table_name r_table_name, c_pk.constraint_name r_pk
FROM all_cons_columns a
JOIN all_constraints c ON a.owner = c.owner AND a.constraint_name = c.constraint_name
JOIN all_constraints c_pk ON c.r_owner = c_pk.owner AND c.r_constraint_name = c_pk.constraint_name
begin
for t in c_table loop
--do something with the table name
dbms_output.put_line(t.table_name);
end loop;
end;
This kind of for loop also handles the opening and closing of the cursor and is the recommended way to do these kind of operations.