使用 MySQL 触发语法错误答案

【问题标题】：Trigger syntax error with MySQL使用 MySQL 触发语法错误
【发布时间】：2016-12-19 15:44:18
【问题描述】：

我想在 MySQL 中创建一个触发器，但出现语法错误。我尝试使用 PHPMyAdmin 或直接从 MySQL 客户端运行查询。

这是错误：

1064 - 您的 SQL 语法有错误；检查与您的 MySQL 服务器版本相对应的手册，以在第 5 行的 '' 附近使用正确的语法

CREATE TRIGGER asterisk.bi_queueEvents BEFORE INSERT ON aasterisk.queue_log
FOR EACH ROW
BEGIN
IF (NEW.event = 'ADDMEMBER')THEN
INSERT INTO agent_status (agentId,agentStatus,timestamp,callid) VALUES (NEW.agent,'READY',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "READY", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
ELSIF (NEW.event = 'REMOVEMEMBER')THEN
INSERT INTO agent_status (agentId,agentStatus,timestamp,callid) VALUES (NEW.agent,'LOGGEDOUT',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "LOGGEDOUT", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
ELSIF (NEW.event = 'PAUSE')THEN
INSERT INTO agent_status (agentId,agentStatus,timestamp,callid) VALUES (NEW.agent,'PAUSE',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "PAUSE", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
ELSIF (NEW.event = 'UNPAUSE')THEN
INSERT INTO agent_status (agentId,agentStatus,timestamp,callid) VALUES (NEW.agent,'READY',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "READY", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
END IF;
END ;
//

DELIMITER ;

【问题讨论】：

标签： mysql triggers

【解决方案1】：

您是否尝试过用 ELSIF 代替 ELSEIF？

IF(boolean_expression 1)THEN 
   S1; -- Executes when the boolean expression 1 is true 
ELSIF( boolean_expression 2) THEN
   S2;  -- Executes when the boolean expression 2 is true

【讨论】：

谢谢，但我仍然遇到同样的错误。我更新了我的问题中的请求

【解决方案2】：

我找到了解决方案，这是一个很好的要求：

delimiter |
CREATE TRIGGER bi_queueEvents
BEFORE INSERT ON queue_log
FOR EACH ROW
BEGIN
    IF NEW.event = 'ADDMEMBER' THEN
        INSERT INTO agent_status (agentId,agentStatus,timestamp,callid)
        VALUES (NEW.agent,'READY',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "READY", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
    ELSEIF NEW.event = 'REMOVEMEMBER' THEN
        INSERT INTO agent_status (agentId,agentStatus,timestamp,callid)
        VALUES (NEW.agent,'LOGGEDOUT',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "LOGGEDOUT", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
    ELSEIF NEW.event = 'PAUSE' THEN
        INSERT INTO agent_status (agentId,agentStatus,timestamp,callid)
        VALUES (NEW.agent,'PAUSE',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "PAUSE", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
    ELSEIF NEW.event = 'UNPAUSE' THEN
        INSERT INTO agent_status (agentId,agentStatus,timestamp,callid)
        VALUES (NEW.agent,'READY',FROM_UNIXTIME(NEW.time),NULL) ON DUPLICATE KEY UPDATE agentStatus = "READY", timestamp = FROM_UNIXTIME(NEW.time), callid = NULL;
    END IF;
END |
delimiter ;

【讨论】：