使用PDO的UPDATE语法出错

Question

我正在尝试运行UPDATE而我收到语法错误。我正在使用php和PDO来创建UPDATE命令。我的语法出了什么问题？

  

更新教育WHERE userId =：userId AND fieldId =：fieldId SET   fieldId =：fieldId，educationTitle =：educationTitle，educationDegree   =：educationDegree，startDate =：startDate，endDate =：endDate，educationDescription =：educationDescription;

错误：

  

您的SQL语法有错误;检查手册   对应于您的MySQL服务器版本，以便使用正确的语法   'WHERE userId ='35'AND fieldId ='4'SET fieldId ='4'附近，   educationTitle ='ththt'在第1行

更新：

我尝试在WHERE之后放置SET，如下面的示例所示，但我仍然遇到语法错误。

  

更新教育SET fieldId =：fieldId，educationTitle =   ：educationTitle，educationDegree =：educationDegree，startDate =   ：startDate，endDate =：endDate，educationDescription =   ：educationDescription，WHERE userId =：userId AND fieldId =：fieldId;

Answer 1

将WHERE放在SET之后。

UPDATE  education  
SET     fieldId = :fieldId, 
        educationTitle = :educationTitle, 
        educationDegree = :educationDegree, 
        startDate = :startDate, 
        endDate = :endDate, 
        educationDescription = :educationDescription
WHERE   userId = :userId AND 
        fieldId = :fieldId