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Include a primary key column to be populated by a sequence, and create new sequence named DD_PTRACK_SEQ for the primary key column.
Create a single trigger for recording the requested information to track pledge payment activity, and test the trigger for all action types for idpay=1470.
The workaround for this is to use variables defined in packages to store information that must be in scope for all timing points.
The following code demonstrates the order in which the timing points are fired.
LAST_APPLIED_DATE,'DD-MON-YYYY'))/12 INTO years_since_last_applied FROM dual; -- Check whether years_since_last_applied is greater than 2 years or not IF (years_since_last_applied -- setting date format to to 'DD-MON-YYYY' alter session set nls_date_format = 'DD-MON-YYYY'; INSERT INTO job_openings VALUES (1,'Mark','Sharma',10,'01-JAN-2012'); INSERT INTO job_openings VALUES (2,'Praveen','Kumar',4,'01-DEC-2010'); INSERT INTO job_openings VALUES (3,'Rahul','Kohli',6,null); -- output 1 rows inserted. TRG_BEFORE_EMP_UPDATE' -- Try to update last_Applied_Date which is less than 2 years UPDATE job_openings SET LAST_APPLIED_DATE = '10-JUN-2016' where APPLICATION_ID = 3; -- error Error report - ORA-20000: Previous application attempt must not be done in last 2 years. TRG_BEFORE_EMP_UPDATE", line 15 ORA-04088: error during execution of trigger 'SYSTEM. UPDATED_DATE := sysdate; END; -- setting date format to to 'DD-MON-YYYY' alter session set nls_date_format = 'DD-MON-YYYY'; INSERT INTO person_records VALUES (101,'Devil','Khedut',sysdate,null,null); INSERT INTO person_records VALUES (102,'Kanji','Yadav',sysdate,null,null); -- output 1 rows inserted. CREATE TABLE bank_transactions_audit ( TXN_ID number(10), TXN_NUMBER varchar2(20), PARTY_NAME varchar2(50), TXN_DATE date, CREATED_BY varchar2(20), CREATED_DATE date ); --Creating Trigger CREATE OR REPLACE TRIGGER trg_before_update_txn_audit BEFORE UPDATE ON bank_transactions FOR EACH ROW BEGIN -- Insert OLD values in audit table for logging purpose INSERT INTO bank_transactions_audit VALUES(: OLD.
TRG_BEFORE_EMP_UPDATE' --Creating person_records table. CREATE TABLE person_records ( PERSON_ID number(10) primary key, FIRST_NAME varchar2(50), LAST_NAME varchar2(50), HIRE_DATE date, UPDATED_BY varchar2(20), UPDATED_DATE date ); CREATE OR REPLACE TRIGGER trg_before_person_update BEFORE UPDATE on person_records FOR EACH ROW DECLARE username varchar2(20); BEGIN SELECT USER INTO username FROM dual; -- Setting updated_by and updated_Date values.
There are optional declaration and exception sections, like any other PL/SQL block, if required.
I have read that using SERIAL not null on the Table column entry may eliminates the need for a sequence and referencing table, but I need that for my homework to work.
And of course the Oracle 11g Reference Doc for Triggers, I've gone over it but you can check it out yourself too. Each time a pledge payment is added, changed, or removed, the following information should be captured in a separate table: username, current date, action taken (INSERT, UPDATE, or DELETE), and the idpay value for the payment record.