这是我的触发器。
CREATE TRIGGER `data_temp_after_insert` AFTER INSERT ON `data_temp`
FOR EACH ROW
BEGIN
DECLARE nextInc INT DEFAULT 0; // I have try to define AS a varchar...
DECLARE idrad varchar(75);
DECLARE idio_bat varchar(75);
DECLARE UniqueID varchar(75);
DECLARE ServerID varchar(75);
SELECT IDRadio INTO idrad FROM radio WHERE radio.XB_SL=NEW.XB_SL AND Actif=1 LIMIT 1;
SELECT ID_IO INTO idio_bat FROM io WHERE io.IDRadio=idrad AND NoIO=1 AND Actif=1 LIMIT 1;
SELECT IDServerInfo INTO ServerID FROM serverinfo WHERE Actif=1;
SELECT AUTO_INCREMENT INTO nextInc FROM information_schema.tables WHERE table_name = 'io_data' AND table_schema = DATABASE( ) ;
SET UniqueID = CONCAT(ServerID,'-',nextInc);
IF NEW.Battery IS NOT NULL AND idio_bat IS NOT NULL AND idio_bat != 0 THEN
UPDATE io_data SET ValueRead=1, DateModification=now() WHERE ID_IO=idio_bat AND ValueRead=0 AND Actif=1;
INSERT INTO io_data (ID_IO_Data, ID_IO, ReadingValue, Timestamp)
VALUES (UniqueID, idio_bat, NEW.Battery, NEW.Timestamp);
END IF;
END
这里是data_temp中的插入查询(设置了触发器)
INSERT INTO data_temp (XB_SL, HType, Battery, Temperature, Value_1, Value_2, Value_3) VALUES ('1086507849', '2', 22, -23, -0.9, -4.6, -4.9);
这里是io_data表格结构:
ID_IO_Data varchar(75)
No int AUTO_INCREMENT
ID_IO varchar(75)
ReadingValue decimal(5,2)
Timestamp timestamp CURRENT_TIMESTAMP
ValueRead int
我有两种不同的情况。
正在运作的那个:(io_data中的更新以及插入内容)
IDServerInfo(定义为varchar 75)的值为230000-A8754126-8B0D-4D68-A20A-7F97EDE1CE43
因此,创建的每个ID都使用此IDServerInfo与表的自动增量连接(定义为varchar 75)。
使用此IDServerInfo在data_temp表中填充数据时,一切运行良好。
不工作的方式:
设置的唯一区别是IDServerInfo包含第一个字符的字母(例如 Z 23000-A8754126-8B0D-4D68-A20A-7F97EDE1CE43)(我试过了) Z 230000-A8754126-8B0D-4D68-A20A-7F97EDE1CE43并且无法正常工作)
任何人都可以提供帮助?你有足够的信息能够理解我做错了吗?
更新
我尝试过多种不同的IDServerInfo
所有都没有工作
Z230000 -
Z23000 -
ZZZZZZZ -
ZZZ111 -
A123456 -
那些工作!
230000
230000Z
1ZZZZZZ
111ZZZ
因此,如果第一个字符是一个字母,它就不起作用了!
答案 0 :(得分:0)
我不知道原因究竟是什么,但我发现错误并且它处于if条件中:
CREATE TRIGGER `data_temp_after_insert` AFTER INSERT ON `data_temp`
FOR EACH ROW
BEGIN
DECLARE nextInc INT DEFAULT 0; // I have try to define AS a varchar...
DECLARE idrad varchar(75);
DECLARE idio_bat varchar(75);
DECLARE UniqueID varchar(75);
DECLARE ServerID varchar(75);
SELECT IDRadio INTO idrad FROM radio WHERE radio.XB_SL=NEW.XB_SL AND Actif=1 LIMIT 1;
SELECT ID_IO INTO idio_bat FROM io WHERE io.IDRadio=idrad AND NoIO=1 AND Actif=1 LIMIT 1;
SELECT IDServerInfo INTO ServerID FROM serverinfo WHERE Actif=1;
SELECT AUTO_INCREMENT INTO nextInc FROM information_schema.tables WHERE table_name = 'io_data' AND table_schema = DATABASE( ) ;
SET UniqueID = CONCAT(ServerID,'-',nextInc);
IF NEW.Battery IS NOT NULL AND idio_bat IS NOT NULL AND idio_bat != 0 THEN
UPDATE io_data SET ValueRead=1, DateModification=now() WHERE ID_IO=idio_bat AND ValueRead=0 AND Actif=1;
INSERT INTO io_data (ID_IO_Data, ID_IO, ReadingValue, Timestamp)
VALUES (UniqueID, idio_bat, NEW.Battery, NEW.Timestamp);
END IF;
END
该条件为0:idio_bat!= 0必须介于quote =>之间
IF NEW.Battery IS NOT NULL AND idio_bat IS NOT NULL AND idio_bat != "0"