Moving Data from Normal table to History tables

Question

Hi All,
I'm in the process of moving data from normal tables to
History tables.
It can be some sort of a procedure which should be a cron job running at night.
My aim is to move data say 1.5 yrs or 2yrs old data to History tables.
What aspects i need to check when moving data. And how can i write a procedure for this requirement.
The schema is same in both the normal table and history table.
It has to be a procedure based on particular field RCRE_DT.
If the rcre_dt is above 2 yrs the data needs to be moved to HIS_<table>.
I have to insert record in to HIS_table and simultaneously delete record from the normal table.
This is in Production system and the tables are quite big.
Pls do find enclosed the attached sample schema for Normal table and HIS_<table>.
If i want to automate this script as a Cron job for similarly other History tables
how am i to do it in a single procedure assuming the procedure for moving the data is the same procedure.
Thanks for ur help in advance.
SQL> DESC PXM_FLT;
Name Null? Type
RCRE_USER_ID NOT NULL VARCHAR2(15)
RCRE_DT NOT NULL DATE
LCHG_USER_ID VARCHAR2(15)
LCHG_DT DATE
AIRLINE_CD NOT NULL VARCHAR2(5)
REF_ID NOT NULL VARCHAR2(12)
BATCH_DT NOT NULL DATE
CPY_NO NOT NULL NUMBER(2)
ACCRUAL_STATUS NOT NULL VARCHAR2(1)
FLT_DT NOT NULL DATE
OPERATING_CARRIER_CD NOT NULL VARCHAR2(3)
OPERATING_FLT_NO NOT NULL NUMBER(4)
MKTING_CARRIER_CD VARCHAR2(3)
MKTING_FLT_NO NUMBER(4)
BOARD_PT NOT NULL VARCHAR2(5)
OFF_PT NOT NULL VARCHAR2(5)
AIR_CD_SHARE_IND VARCHAR2(1)
UPLOAD_ERR_CD VARCHAR2(5)
MID_PT1 VARCHAR2(5)
MID_PT2 VARCHAR2(5)
MID_PT3 VARCHAR2(5)
MID_PT4 VARCHAR2(5)
MID_PT5 VARCHAR2(5)
PAX_TYPE VARCHAR2(3)
PAY_PRINCIPLE VARCHAR2(1)
SQL> DESC HIS_PXM_FLT;
Name Null? Type
RCRE_USER_ID NOT NULL VARCHAR2(15)
RCRE_DT NOT NULL DATE
LCHG_USER_ID VARCHAR2(15)
LCHG_DT DATE
AIRLINE_CD NOT NULL VARCHAR2(5)
REF_ID NOT NULL VARCHAR2(12)
BATCH_DT NOT NULL DATE
CPY_NO NOT NULL NUMBER(2)
ACCRUAL_STATUS NOT NULL VARCHAR2(1)
FLT_DT NOT NULL DATE
OPERATING_CARRIER_CD NOT NULL VARCHAR2(3)
OPERATING_FLT_NO NOT NULL NUMBER(4)
MKTING_CARRIER_CD VARCHAR2(3)
MKTING_FLT_NO NUMBER(4)
BOARD_PT NOT NULL VARCHAR2(5)
OFF_PT NOT NULL VARCHAR2(5)
AIR_CD_SHARE_IND VARCHAR2(1)
UPLOAD_ERR_CD VARCHAR2(5)
MID_PT1 VARCHAR2(5)
MID_PT2 VARCHAR2(5)
MID_PT3 VARCHAR2(5)
MID_PT4 VARCHAR2(5)
MID_PT5 VARCHAR2(5)
PAX_TYPE VARCHAR2(3)
PAY_PRINCIPLE VARCHAR2(1)

Answer 1

Hi All,
Thanks for ur valuable suggestion.But can u explain me bit more on this as i'm still confused about switching between partitoned tables and temporary table.Suppose if i have a table called PXM_FLT and an correspoding similar table named HIS_PXM_FLT.How can i do the partitioning shd i do the partitioning on the normal table or HIS_PXM_FLT.i do have a date field for me to partition based on range.Can u pls explain why shd i again create a temp.table.What's the purpose.Now the application is designed in such a way that old records have to be moved to HIS_PXM_FLT.can u pls highlight more on this.Your suggestions are greatly appreciated.As i'm relatively new to this partitioning technique i'm bit confused on how it works.But i came to understand Partitioning is a better operation than the normal insert or delte as it is more data intensive as millions of record need to be moved.Thanks for feedback and ur precious time.