MYSQL-表中的AFTER UPDATE进行内部联接

Question

I have a table called jobPosts in my mySQL datbase. I am trying to to insert data into another table (jobRequest) once an update has occurred in my current jobPost table.

Here is my SQL tables & queries.

           DELIMITER //
           CREATE DEFINER=`root`@`localhost` TRIGGER 
           trg_jobPost_after_update
           AFTER UPDATE ON jobPost
           FOR EACH ROW
           BEGIN
           INSERT INTO jobRequest (userID, name, email, phoneNo, 
            location, jobID, 
                   title, level, dateFrom, dateTo, description, 
                   jobStatus, emailTeacher, nameTeacher, 
                   locationTeacher, phoneNoTeacher, cv, gardavetting, 
                   linkedin) 
      SELECT 
        jobPost.userID
      ,  jobPost.name
      ,  jobPost.email
      ,  jobPost.phoneNo
      ,  jobPost.location
      ,  jobPost.jobID
      ,  jobPost.title
      ,  jobPost.level
      ,  jobPost.dateFrom
      ,  jobPost.dateTo
      ,  jobPost.description
      , users.nameTeacher
      , users.locationTeacher
      , users.phoneNoTeacher
      , users.cv
      , users.gardavetting
      , users.linkedin
      , NEW.jobStatus
     , NEW.emailTeacher
   FROM jobPost
   WHERE jobPosts.emailTeacher = NEW.emailTeacher;
  END //
  DELIMITER ;

Tables -

jobPost table

users Table

jobRequest Table

Answer 1

From comments, it seems that you simply need a Inner Join between the jobPost and users table, on emailTeacher .

Also, some columns from Select were missing, in comparison to Insert clause; I have added them in proper order.

DELIMITER //
CREATE DEFINER=`root`@`localhost` TRIGGER 
    trg_jobPost_after_update
    AFTER UPDATE ON jobPost
       FOR EACH ROW
       BEGIN

       -- Check if jobStatus is Updated (then only we Insert) 
       IF ( OLD.jobStatus <> NEW.jobStatus AND 
            OLD.emailTeacher <> NEW.emailTeacher ) THEN 
         INSERT INTO jobRequest (userID, name, email, phoneNo, 
                                 location, jobID, title, level, 
                                 dateFrom, dateTo, description, 
                                 jobStatus, emailTeacher, nameTeacher, 
                                 locationTeacher, phoneNoTeacher, cv, 
                                 gardavetting, linkedin) 
         SELECT 
           jobPost.userID
        ,  jobPost.name
        ,  jobPost.email
        ,  jobPost.phoneNo
        ,  jobPost.location
        ,  jobPost.jobID
        ,  jobPost.title
        ,  jobPost.level
        ,  jobPost.dateFrom
        ,  jobPost.dateTo
        ,  jobPost.description
        ,  NEW.jobStatus 
        ,  NEW.emailTeacher 
        ,  users.nameTeacher 
        , users.locationTeacher
        , users.phoneNoTeacher
        , users.cv
        , users.gardavetting
        , users.linkedin
        FROM jobPost 
        JOIN users ON users.emailTeacher = jobPost.emailTeacher 
        WHERE jobPost.emailTeacher = NEW.emailTeacher;

      END IF;
END //
DELIMITER ;