MySql error in your SQL syntax for date - mysql

Question

I have just migrated my database from MS SQL to MySQL.
When running reports I now get the following error:
Application Execution Exception
Error Type: database : 0
Error Messages: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2 YEAR(res_created) AS responseYear FROM Responses INNER JOIN ' at line 1
SQL Sent:
SELECT DISTINCT TOP #arguments.yearsToReturn# YEAR(res_created) AS responseYear
FROM
Responses
INNER JOIN
Questions ON Responses.question_id = Questions.question_id
INNER JOIN
Lookup_Survey_Questions ON Questions.question_id = Lookup_Survey_Questions.question_id
INNER JOIN
Survey ON Lookup_Survey_Questions.survey_id = Survey.survey_id
INNER JOIN
School ON Survey.sch_id = School.sch_id
INNER JOIN
Authority ON School.auth_id = Authority.auth_id
WHERE
Authority.auth_id = #arguments.authorityID#
AND
Questions.question_id = #arguments.questionID#
AND
Responses.survey_id IN (SELECT Survey.survey_id FROM Survey where Survey.sch_id in (SELECT School.sch_id FROM School where auth_id=#arguments.authorityID#))
ORDER BY
responseYear ASC
How can I resolve?
Thanks

Answer 1

I think that this can be simplified as follows...
SELECT DISTINCT YEAR(res_created) responseYear
FROM Responses r
JOIN Questions q
ON q.question_id = r.question_id
JOIN Lookup_Survey_Questions lsq
ON lsq.question_id = q.question_id
JOIN Survey u
ON u.survey_id = lsq.survey_id
JOIN School c
ON c.sch_id = u.sch_id
JOIN Authority a
ON a.auth_id = c.auth_id
WHERE a.auth_id = #arguments.authorityID#
AND q.question_id = #arguments.questionID#
AND c.auth_id=#arguments.authorityID#
ORDER
BY responseYear ASC
LIMIT 2;

Answer 2

"Top 2" isn't MySQL syntax. To select the first two results add limit 2 to the end of the query:
...
ORDER BY
responseYear ASC LIMIT 2

Answer 3

You are using the two clause at a place. You are using the DISTINCT and TOP that's why there is error.
Use this query:
SELECT DISTINCT YEAR(res_created) AS responseYear
FROM Responses
INNER JOIN Questions ON Responses.question_id = Questions.question_id
INNER JOIN Lookup_Survey_Questions ON Questions.question_id = Lookup_Survey_Questions.question_id
INNER JOIN Survey ON Lookup_Survey_Questions.survey_id = Survey.survey_id
INNER JOIN School ON Survey.sch_id = School.sch_id INNER JOIN Authority ON School.auth_id = Authority.auth_id
WHERE Authority.auth_id = 5 AND Questions.question_id = 20 AND Responses.survey_id IN (
SELECT Survey.survey_id FROM Survey where Survey.sch_id in (SELECT School.sch_id FROM School where auth_id=5))
ORDER BY responseYear ASC
LIMIT 0,2; //use the limit