Companies { ID }
Accounts { ID }
Accounts_Companies { ID, Account_ID, Company_ID }
Customers { ID, Account_ID }
JobTypes { ID }
Jobs { ID, Company_ID, Account_ID, Customer_ID, JobType_ID, OutOfRadius (BOOL) }

CREATE TABLE IF NOT EXISTS `configs` (
  `ID` int(11) NOT NULL AUTO_INCREMENT,
  `Company_ID` int(11) NOT NULL,
  `Account_ID` int(11) DEFAULT NULL,
  `Customer_ID` int(11) DEFAULT NULL,
  `JobType_ID` int(11) DEFAULT NULL,
  `OutOfRadius` tinyint(1) DEFAULT NULL,
  `ConfigKeyA` tinyint(1) DEFAULT NULL,
  `ConfigKeyB` int(5) DEFAULT NULL,
  `ConfigKeyC` tinyint(1) DEFAULT NULL,
  `ConfigKeyD` int(3) DEFAULT NULL,
  PRIMARY KEY (`ID`)
);

INSERT INTO configs (Company_ID, Account_ID, ConfigKeyC) VALUES (?, ?, ?)