问题
I have a scenarios like ,I need to create interval partitions(monthly) to an existing table in Oracle which has no partitions .please suggest me how to proceed.
I tried with below
alter table RSST_TP_ORDERINVOICED_NETREV_F
set interval(NUMTOYMINTERVAL(1,'MONTH'));
TABLESPACE "RSST_DATA"
PARTITION BY RANGE ( "DATE_SK" )
INTERVAL ( NUMTOYMINTERVAL(1,'MONTH') ) (
PARTITION "P_FIRST" VALUES LESS THAN (TO_DATE(' 2000-01-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN'))
TABLESPACE "RSST_DATA" )
回答1:
You cannot partition an existing non-partitioned table.
In general, you'll need to create a new partitioned table, move the data from the existing table to the new table (probably using a direct-path insert with parallel DML), drop the old table, and rename the new table to use the old name. You can do that manually. Or you could use the dbms_redefinition package to manage these steps-- that will likely be less efficient but it would allow you to do this without an outage window.
回答2:
As discussed above, we cannot partition an existing non-partitioned table directly using an alter command (Oracle 11g and below).
1) Create new Table "RSST_TP_ORDERINVOICED_NETREV_F_TEMP" with partitions (with similar structure).
2) Insert whole data from RSST_TP_ORDERINVOICED_NETREV_F to RSST_TP_ORDERINVOICED_NETREV_F_TEMP
Use: INSERT /*+ append */ INTO RSST_TP_ORDERINVOICED_NETREV_F_TEMP AS SELECT * FROM RSST_TP_ORDERINVOICED_NETREV_F; or Bulk Collect
3) Take back up scripts for creating indexes,constraints,grants,triggers.
4) Drop table RSST_TP_ORDERINVOICED_NETREV_F.
5) Rename table RSST_TP_ORDERINVOICED_NETREV_F_TEMP to RSST_TP_ORDERINVOICED_NETREV_F.
6) Re-create all corresponding indexes,constraints(Primary key, Foreign),grants, triggers.
来源：https://stackoverflow.com/questions/25507336/how-to-add-interval-partitions-to-an-existing-table-in-oracle