Related Documentation Download this Manual
PDF (US Ltr) - 31.0Mb
PDF (A4) - 31.1Mb
PDF (RPM) - 29.3Mb
HTML Download (TGZ) - 7.2Mb
HTML Download (Zip) - 7.2Mb
HTML Download (RPM) - 6.2Mb
Man Pages (TGZ) - 175.7Kb
Man Pages (Zip) - 285.9Kb
Info (Gzip) - 3.0Mb
Info (Zip) - 3.0Mb
Excerpts from this Manual

20.5.1 View Syntax

The CREATE VIEW statement creates a new view (see Section 13.1.20, “CREATE VIEW Syntax”). To alter the definition of a view or drop a view, use ALTER VIEW (see Section 13.1.9, “ALTER VIEW Syntax”), or DROP VIEW (see Section 13.1.31, “DROP VIEW Syntax”).

A view can be created from many kinds of SELECT statements. It can refer to base tables or other views. It can use joins, UNION, and subqueries. The SELECT need not even refer to any tables. The following example defines a view that selects two columns from another table, as well as an expression calculated from those columns:

mysql> CREATE TABLE t (qty INT, price INT);
mysql> INSERT INTO t VALUES(3, 50), (5, 60);
mysql> CREATE VIEW v AS SELECT qty, price, qty*price AS value FROM t;
mysql> SELECT * FROM v;
+------+-------+-------+
| qty  | price | value |
+------+-------+-------+
|    3 |    50 |   150 |
|    5 |    60 |   300 |
+------+-------+-------+
mysql> SELECT * FROM v WHERE qty = 5;
+------+-------+-------+
| qty  | price | value |
+------+-------+-------+
|    5 |    60 |   300 |
+------+-------+-------+

User Comments
User comments in this section are, as the name implies, provided by MySQL users. The MySQL documentation team is not responsible for, nor do they endorse, any of the information provided here.
Sign Up Login You must be logged in to post a comment.