mysql存储过程基础之遍历多表记录后插入第三方表中详解

BEGIN 

 DECLARE dsi_id LONG;
 DECLARE dsi_name varchar(300);
 DECLARE dsi_areaid LONG;
 DECLARE dsi_orgzid LONG;
 DECLARE dsi_clazz varchar(300);
 
 declare no_more_departments integer DEFAULT 0;

 DECLARE cursor_employee CURSOR FOR
 SELECT
  dsi.id,
  dsi.inputname,
  dsi.deviceArea_id,
  sd.organization_id,
  "DeviceSwitchInfo"
 FROM
  tip_s_deviceswitchinfo dsi
 LEFT JOIN tip_s_systemdeviceinfo sd ON dsi.Device_id = sd.id
 UNION SELECT
  dsi.id,
  dsi.outputname,
  dsi.deviceArea_id,
  sd.organization_id,
  "DeviceSwitchOutPut"
 FROM
  tip_s_DeviceSwitchOutPut dsi
 LEFT JOIN tip_s_systemdeviceinfo sd ON dsi.Device_id = sd.id
 UNION SELECT
  dsi.id,
  dsi.analogname,
  dsi.deviceArea_id,
  sd.organization_id,
  "AnalogInputInfo"
 FROM
  tip_s_AnalogInputInfo dsi
 LEFT JOIN tip_s_systemdeviceinfo sd ON dsi.Device_id = sd.id
 UNION SELECT
  dsi.id,
  dsi.devicename,
  dsi.area_id,
  sd.organization_id,
  "SmartDeviceInfo"
 FROM
  tip_smart_deviceinfo dsi
 LEFT JOIN tip_s_systemdeviceinfo sd ON dsi.deviceid = sd.id;


 DECLARE CONTINUE HANDLER FOR NOT FOUND 
 SET no_more_departments = 1;

 OPEN cursor_employee;
 
 FETCH cursor_employee INTO dsi_id, dsi_name, dsi_areaid, dsi_orgzid, dsi_clazz;

 WHILE !no_more_departments DO

 INSERT INTO tip_m_deviceregister (
  deviceId, NAME, area_id, orgz_id, deviceClass, active, version
 )
 VALUES (dsi_id, dsi_name, dsi_areaid, dsi_orgzid, dsi_clazz, 1, 1);

 FETCH cursor_employee INTO dsi_id, dsi_name, dsi_areaid, dsi_orgzid, dsi_clazz;
 END WHILE;
 CLOSE cursor_employee;
END