SQL USE

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Purpose

Sets the specified database as the default database for subsequent queries

Syntax

USE <database name>

See Also

ADD TABLE, ALTER INDEX, ALTER TABLE, CLOSE DATABASES, COPY DATABASE, CREATE INDEX, CREATE TABLE, CREATE VIEW, DISPLAY SCHEMAS, DROP DATABASE, DROP INDEX, DROP TABLE, GETENV(), LIST SCHEMAS, OPEN DATABASE, SET AUTOCATALOG, SET SQL

Description

The USE command sets the specified database as the default database for subsequent queries. The database remains current until the end of the session or until another USE statement is issued. Tables from other databases can still be accessed, but must be indicated by including the database name in the table reference, database!table.

SQL must be set to MySQL before using the USE command in this way.

Example

set sql to mysql
USE hr;
SELECT staff_no, lastname from staff;
USE accounts;
SELECT salesid from customer;
USE hr;
SELECT staff_no, lastname, customerno from staff, accounts!customer
where staff.staff_no = accounts!customer.salesid;