Insert data in same table based on some condition

Question

Hi. I am new to this forum.
I have to write a stored procedure to Insert Data into a table say MYTABLE ,having structure as:
Col1 Col2 Col3 ................ TotalInstallments CurrentInstallment PaidAmount MonthYear
I have to insert all the data as it is in the same table(MYTABLE) except changing some fields on basis of some conditions:
1. if PaidAmount>0 && CurrentInstallment<TotalInstallment then
CurrentInstallment=CurrentInstallment+1
2. In the MonthYear field I am having data in formate(month/year)ex. 01/2012, 11/2012 ....
So I have to insert data by incrementing month and year. for example:
if currentdata is 11/2012 then next data will be 12/2012
But next will be 01/2013
I have to select all the records which belongs to previous month(through MonthYear field ) and put checking & changes on each record of the selected data and then insert them into same table(MYTABLE).
How to achive that?
Thanks.

Answer 1

978184 wrote:
Every thing is working fine but some strange result as:
when i run my Procedure TRANSFERDATATONEXTMONTH
1. by Passing Value as : CUSTOMERID_var ='ABX101' and MONTHYEAR_var='12/2012' it insurts 5 rows
which is correct , since I have 5 records where CUSTOMERID='ABX101' and MONTHYEAR='12/2012' and
new 5 rows has CUSTOMERID='ABX101' and MONTHYEAR='01/2013' (all other values are as expected)
2. now when i again run by passing values: CUSTOMERID='ABX101' and MONTHYEAR='01/2013' it inserts 10 records(just double )
and new records has value CUSTOMERID='ABX101' and MONTHYEAR='02/2013' (while on the basis of condition CUSTOMERID='ABX101' and MONTHYEAR='01/2013' i have in my table only 5 records)
and all records are duplicate. Some times it inserts three times , while on condition basis it should no. What is happening?Probably, meanwhile you were trying to Insert the First time and the second time, someone did run the procedure that Inserted 5 More records for 01/2013. And, hence your Second run inserted 10 records instead of 5.
>
Why it is inserting double of records while i have only 5 records on given condition? Am I missing some thing?Yes, you are. You are missing your Tables, Your Dummy/Sample Data, Working Procedure/Function that can be replicated.
Without this, we cannot simply believe on assertions that Oracle is behaving incorrectly.
In addition to this, the GetMonthYear function, should be scrapped. It is un-necessary, when the same logic can be achieved using Oracle ADD_MONTHS function (See my previous post). And you are storing the MonthYear in a Varchar field, which ideally should be a Date field. This eradicates the un-wanted need to cast from VARCHAR - DATE - VARCHAR.
Please do make some time to read {message:id=9360002} and mentioned relevant details.
And notice, the code difference in my previous post and in your code.
Please use
{noformat}
(exactly as shown) above and below your code, that indents the code properly for better readability.
{noformat}