Question

我试图使用mysql存储功能。功能：

DELIMITER $$
CREATE FUNCTION ChangeHistory(newValue VARCHAR(255), oldValue VARCHAR(255), attributeName VARCHAR(255), action VARCHAR(255), entityId BIGINT(20), modifiedBy BIGINT(20)) RETURNS TINYINT(1)
    NOT DETERMINISTIC
BEGIN
   IF newValue != oldValue THEN 
    INSERT INTO ChangeHistoryPlayer
    SET
        action = action,
        timeCreated = now(),
        entityId = entityId,
        modifiedBy= modifiedBy,

        attributeName = attributeName,
        oldValue = oldValue2,
        newValue =  newValue2; 
    END IF;
 RETURN 1;
END

触发器中的函数调用：

USE `XXX_admin`;
DELIMITER $$
CREATE TRIGGER `player_AUPD` AFTER UPDATE ON `player` FOR EACH ROW
BEGIN
    ChangeHistory(NEW.firstName, OLD.firstName, 'firstName', 'AFTER_UPDATE', NEW.entityId, NEW.modifiedBy);
END

错误（在changeHistoy之后和之前的“（”）：

syntax error, unexpected '(' expecting ':'

为什么？

Answer 1

CREATE TRIGGER `player_aupd` after UPDATE 
ON `player` 
FOR EACH row 
begin 
  SELECT Changehistory(new.firstname, old.firstname, 'firstName', 'AFTER_UPDATE' 
         , 
                      new.entityid, new.modifiedby); 
end

添加一个选择应该可以做到！

希望这有帮助！

使用MySQL存储函数

1 个答案: