Difference between revisions of "UPDATE"
From SQLZOO
(Created page with " <h1>UPDATE</h1> <table class='NoBorder'><td><tr> The table <code>games</code> shows the year and the city hosting the Olympic Games. </td><td> <table style='float:left' class...") |
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INSERT INTO games VALUES (2004,'Athens'); | INSERT INTO games VALUES (2004,'Athens'); | ||
INSERT INTO games VALUES (2008,'Beijing'); | INSERT INTO games VALUES (2008,'Beijing'); | ||
| − | INSERT INTO games VALUES ( | + | INSERT INTO games VALUES (2009,'London'); |
</source> | </source> | ||
The UPDATE statement can be used to change a values in rows that already exists. | The UPDATE statement can be used to change a values in rows that already exists. | ||
Revision as of 10:52, 18 February 2013
UPDATE
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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');
INSERT INTO games VALUES (2009,'London');
The UPDATE statement can be used to change a values in rows that already exists. In this example we move the 2012 games from London to Paris.
UPDATE scott.games SET city='Paris' WHERE yr = 2012;
SELECT * FROM scott.games;
UPDATE games SET city='Paris' WHERE yr = 2012;
SELECT * FROM games;
See also
