Using Dynamic VIEW better pl/sql ?

Question

Hi,
Would like to know your suggestion,
Currently i need to process 5 tables and put the data into a new single Table.
The number of Rows are many, 1000000 and could be even more.
Now i am planning to Create a View from the 5 Tables and then
form the View i am planning to do the Processing and
after which i will put the processed data into the newly created table.
Alternatively i was thinking of having a Collection of Objects(Nested Table) instead of VIEW,
since the number of rows which need to be processed are more i felt this would not be a better option.
Can we go-ahead creating VIEW dynamically, Or is there any better design Solution that you can think of ?
regards,
Alex

Answer 1

Hi,
I have Place the Sample Structure here along with the data .... and the expected output below.
How can we BUILD a SQL Smt for the below :
CREATE TABLE One_T (
one_no NUMBER,
one_message varchar2(20)
CREATE TABLE Two_T (
two_no NUMBER,
two_message varchar2(20)
CREATE TABLE Three_T (
three_no NUMBER,
three_message varchar2(20)
CREATE TABLE Four_T (
four_no NUMBER,
four_message varchar2(20)
CREATE TABLE Five_T (
five_no NUMBER,
five_message varchar2(20)
CREATE TABLE Six_T (
six_col1 varchar2(20),
six_col2 varchar2(20),
six_col3 varchar2(20)
CREATE TABLE New_Table (
New_Table_col1 varchar2(20),
New_Table_col2 varchar2(20),
New_Table_col3 varchar2(20),
New_Table_col4 varchar2(20),
New_Table_col5 varchar2(20),
New_Table_col6 varchar2(20),
New_Table_col7 varchar2(20)
INSERT ALL
INTO One_T(one_no,one_message) VALUES(1,'Message11')
INTO One_T(one_no,one_message) VALUES(2,'Message12')
INTO One_T(one_no,one_message) VALUES(3,'Message13')
INTO One_T(one_no,one_message) VALUES(4,'Message14')
INTO One_T(one_no,one_message) VALUES(5,'Message15')
INTO Two_T(two_no,two_message) VALUES(1,'Message21')
INTO Two_T(two_no,two_message) VALUES(2,'Message22')
INTO Two_T(two_no,two_message) VALUES(3,'Message23')
INTO Two_T(two_no,two_message) VALUES(4,'Message24')
INTO Two_T(two_no,two_message) VALUES(5,'Message25')
INTO Three_T(three_no,three_message) VALUES(1,'Message31')
INTO Three_T(three_no,three_message) VALUES(2,'Message32')
INTO Three_T(three_no,three_message) VALUES(3,'Message33')
INTO Three_T(three_no,three_message) VALUES(4,'Message34')
INTO Three_T(three_no,three_message) VALUES(5,'Message35')
INTO Four_T(four_no,four_message) VALUES(1,'Message41')
INTO Four_T(four_no,four_message) VALUES(2,'Message42')
INTO Four_T(four_no,four_message) VALUES(3,'Message43')
INTO Four_T(four_no,four_message) VALUES(4,'Message44')
INTO Four_T(four_no,four_message) VALUES(5,'Message45')
INTO Five_T(five_no,five_message) VALUES(1,'Message51')
INTO Five_T(five_no,five_message) VALUES(2,'Message52')
INTO Five_T(five_no,five_message) VALUES(3,'Message53')
INTO Five_T(five_no,five_message) VALUES(4,'Message54')
INTO Five_T(five_no,five_message) VALUES(5,'Message55')
INTO Six_T(six_col1,six_col2,six_col3) VALUES(1,'MessageCol111','MessageCol211')
INTO Six_T(six_col1,six_col2,six_col3) VALUES(1,'MessageCol112','MessageCol212')
INTO Six_T(six_col1,six_col2,six_col3) VALUES(2,'MessageCol211','MessageCol221')
INTO Six_T(six_col1,six_col2,six_col3) VALUES(2,'MessageCol221','MessageCol222')
INTO Six_T(six_col1,six_col2,six_col3) VALUES(2,'MessageCol222','MessageCol223')
SELECT * FROM dual;
OUTPUT :
New_Table
MessageCol111, MessageCol211,Message11,Message21,Message31,Message41,Message51
MessageCol112, MessageCol212,Message11,Message21,Message31,Message41,Message51
...