Here are some table definitions:
CREATE TABLE x10_device_types
(
device_typename VARCHAR(20) NOT NULL,
respondstoalloff enum('TRUE','FALSE') NOT NULL,
respondstoalllightson enum('TRUE','FALSE') NOT NULL,
respondstoalllightsoff enum('TRUE','FALSE') NOT NULL,
respondstoallunitsoff enum('TRUE','FALSE') NOT NULL,
dimmable enum('TRUE','FALSE') NOT NULL,
device_category VARCHAR(20) NOT NULL
);
CREATE TABLE x10_devices
(
device_name VARCHAR(25) NOT NULL,
device_typename VARCHAR(20) NOT NULL,
location_name VARCHAR(25) NOT NULL,
x10_housecode CHAR(1) NOT NULL,
x10_unitcode TINYINT unsigned NOT NULL,
x10_dev_description VARCHAR(75),
lastknownstate TINYINT unsigned
);
What I'm trying to do is to set the lastknownstate to 0 for all devices in
x10_housecode='A' where they respond to
respondstoallunitsoff and have a device_category='Module'.
I can't figure out how to do this because the update criteria spans 2 tables and
I don't have views. I tried the following, but it doesn't like my listing of
2 tables after the update. Any ideas?
mysql> update x10_devices,x10_devicetypes set lastknownstate=16 where
x10_devices.device_typename=x10_device_types.device_typename and
x10_device_types.respondstoalloff and x10_device_types.device_category='Module'
and x10_housecode='A';
Steve
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