How to avoid duplicate rows after insert into new table?- SQL
I have a trigger in my jobPost table that fires after an update to column jobStatus & emailTeacher. The trigger inserts all rows that match emailTeacher and insert into a new table called jobRequests.
My problem is - When a row is updated, all rows with that SAME emailTeacher inserts into the new table. I would like to only INSERT the affected row that has been updated. I have attached sql below. Thank you. Any help appreciated.
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, lat, lng, 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.lat
, jobPost.lng
, 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
php mysql sql triggers
add a comment |
I have a trigger in my jobPost table that fires after an update to column jobStatus & emailTeacher. The trigger inserts all rows that match emailTeacher and insert into a new table called jobRequests.
My problem is - When a row is updated, all rows with that SAME emailTeacher inserts into the new table. I would like to only INSERT the affected row that has been updated. I have attached sql below. Thank you. Any help appreciated.
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, lat, lng, 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.lat
, jobPost.lng
, 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
php mysql sql triggers
1
Make one column unique, and do INSERT ... ON DUPLICATE KEY UPDATE
– aynber
Nov 21 '18 at 16:39
Column unique in the inserted table or the table that is being updated. Thanks!
– Adam Mc Menamin
Nov 21 '18 at 16:44
add a comment |
I have a trigger in my jobPost table that fires after an update to column jobStatus & emailTeacher. The trigger inserts all rows that match emailTeacher and insert into a new table called jobRequests.
My problem is - When a row is updated, all rows with that SAME emailTeacher inserts into the new table. I would like to only INSERT the affected row that has been updated. I have attached sql below. Thank you. Any help appreciated.
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, lat, lng, 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.lat
, jobPost.lng
, 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
php mysql sql triggers
I have a trigger in my jobPost table that fires after an update to column jobStatus & emailTeacher. The trigger inserts all rows that match emailTeacher and insert into a new table called jobRequests.
My problem is - When a row is updated, all rows with that SAME emailTeacher inserts into the new table. I would like to only INSERT the affected row that has been updated. I have attached sql below. Thank you. Any help appreciated.
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, lat, lng, 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.lat
, jobPost.lng
, 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
php mysql sql triggers
php mysql sql triggers
asked Nov 21 '18 at 16:36


Adam Mc MenaminAdam Mc Menamin
174
174
1
Make one column unique, and do INSERT ... ON DUPLICATE KEY UPDATE
– aynber
Nov 21 '18 at 16:39
Column unique in the inserted table or the table that is being updated. Thanks!
– Adam Mc Menamin
Nov 21 '18 at 16:44
add a comment |
1
Make one column unique, and do INSERT ... ON DUPLICATE KEY UPDATE
– aynber
Nov 21 '18 at 16:39
Column unique in the inserted table or the table that is being updated. Thanks!
– Adam Mc Menamin
Nov 21 '18 at 16:44
1
1
Make one column unique, and do INSERT ... ON DUPLICATE KEY UPDATE
– aynber
Nov 21 '18 at 16:39
Make one column unique, and do INSERT ... ON DUPLICATE KEY UPDATE
– aynber
Nov 21 '18 at 16:39
Column unique in the inserted table or the table that is being updated. Thanks!
– Adam Mc Menamin
Nov 21 '18 at 16:44
Column unique in the inserted table or the table that is being updated. Thanks!
– Adam Mc Menamin
Nov 21 '18 at 16:44
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53416674%2fhow-to-avoid-duplicate-rows-after-insert-into-new-table-sql%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53416674%2fhow-to-avoid-duplicate-rows-after-insert-into-new-table-sql%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Make one column unique, and do INSERT ... ON DUPLICATE KEY UPDATE
– aynber
Nov 21 '18 at 16:39
Column unique in the inserted table or the table that is being updated. Thanks!
– Adam Mc Menamin
Nov 21 '18 at 16:44