How to manipulate data in multiple rows without using cursor??

Hi all,
I have a form in which there is a push button & 4 text fields.
Push button : Process
Text fields: Year, Month, Financial_To_Year, Financial_From_Date.
In database , there are tables like, CUSTOMER_MASTER, FD_ACCOUNT_MASTER, FD_ACCOUNT_DTL, CUSTOMER_YEARLY_INTEREST, etc.
In table FD_ACCOUNT_MASTER, there are columns, like CUST_CODE, FD_ACCT_NO, FD_AMOUNT, ACCT_OPEN_DT, ACCT_CLOSE_DATE, ACCT_TYPE, INTEREST_RATE, etc.
There are thousands of records in the table.
For Push button : Process , TRIGGER: When button pressed,
I have to do all the process of FD for all the FD_ACCOUNTS at once. Process means i have to calculate Interest for all the accounts, calculate interest monthly, quarterly, yearly and make the FD_Accounts disable after the date of ACCT_CLOSE_DATE is reached, make the accounts renewed , etc all the process.
But to do this process for multiple rows at once, we use cursor, but i don't want to use cursor as i feel its too tedious to do.
Is there any other way , where i do process of multiple records at once without using cursor??
Help me, Thank You.
Oracle Forms Builder 6i.
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production

An Update statement certainly can update sets of data instead single row updates:
UPDATE Statement
if you can't do it in a single statement you can use bulk processing as well:
PLSQL 101
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How to manipulate data in multiple rows without using cursor??

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