INSERT .. SELECT

You can use the results of a SELECT statement to insert rows into another table.

INSERT INTO games(yr,city)
  SELECT yr+12, city FROM games;

The table games shows the year and the city hosting the Olympic Games.

**games** (before)
yr	city
2000	Sydney
2004	Athens
2008	Beijing

**games** (after)
yr	city
2000	Sydney
2004	Athens
2008	Beijing
2012	Sydney
2016	Athens
2020	Beijing

schema:scott

 DROP TABLE games

 CREATE TABLE games(
  yr INTEGER,
  city VARCHAR(20));
INSERT INTO games VALUES (2000,'Sydney');
INSERT INTO games VALUES (2004,'Athens');
INSERT INTO games VALUES (2008,'Beijing');

The INSERT SELECT statement adds a new row to the table based on a SELECT statement: In this example you run the next three Olympic games in the same three venues:

INSERT INTO games(yr,city)
  SELECT yr+12, city FROM games;
SELECT * FROM games;

INSERT INTO games(yr,city)
  SELECT yr+12, city FROM games;

SELECT * FROM games;