In this article, I'll show you how you can update data from table to another with select statement.
--1--create two table. CREATE TABLE LOCAT001 AS
(SELECT LOCATION_ID, STREET_ADDRESS, STATE_PROVINCE
FROM LOCATIONS );
alter table LOCAT001 add constraint PK_LOCATION_ID primary key("LOCATION_ID") ;
CREATE TABLE LOCAT002 AS
(SELECT LOCATION_ID, STREET_ADDRESS, STATE_PROVINCE
FROM LOCATIONS );
alter table LOCAT002 add constraint PK_LOCATION02_ID primary key("LOCATION_ID") ;
UPDATE LOCAT002 SET STATE_PROVINCE=NULL;
UPDATE LOCAT002 SET STATE_PROVINCE=NULL
/
COMMIT
/
The source table.
The target table.
--2--Do the update now with the select.
--3-- See the result .
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