EDIT: This solved my problem:
select id_t,punctaj
from test
where punctaj in (select punctaj from test )
order by punctaj desc
limit 1;*
I have written a working Oracle SQL code but when I'm trying to convert it to MySQL I have a syntax error which I cannot solve. It looks like MySQL does not accept ROWNUM and also SELECT * FROM a subquery. What could be the solution? I need the biggest value of "PUNCTAJ" from the tests and I need to keep that "IN". Thanks!
Here is my code:
select* from (
select id_t,punctaj
from test
where punctaj in (select punctaj from test )
order by punctaj desc)
where rownum<=1
error:#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'where rownum<=1 LIMIT 0, 25' at line 6
you have written twice the where condition,
In secondd where use AND rownum<=1
Related
Here's the code:
WITH sub_query AS (Select imdp_title_id FROM movie_ratings)
Here's the output:
Error Code: 1064. 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 '' at line 1
MySQL version : '8.0.26'
Software Used : MySQL Workbench 8.0
Thanks in advance.
When you use CTE syntax, you must define the CTE, and then use that CTE in a DML statement.
https://dev.mysql.com/doc/refman/8.0/en/with.html says:
The following example defines CTEs named cte1 and cte2 in the WITH
clause, and refers to them in the top-level SELECT that follows the
WITH clause:
WITH
cte1 AS (SELECT a, b FROM table1),
cte2 AS (SELECT c, d FROM table2)
SELECT b, d FROM cte1 JOIN cte2
WHERE cte1.a = cte2.c;
This shows that you have a final SQL statement following one or more <cte> AS ( <subquery> ) definitions.
MySQL 8.0 supports SELECT, UPDATE, or DELETE DML statements following the CTE's.
My query is:
SELECT *,
ROW_NUMBER() OVER (ORDER BY score ASC)
FROM submissions
The error message I receive is:
#1064 - 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 '(ORDER BY score ASC) FROM submissions LIMIT 0, 25' at line 2
I am running this query in phpMyAdmin. I notice that OVER is not colored blue, nor does is it suggested as I type, unlike other command words (ORDER, ASC, etc).
This simpler query runs just fine:
SELECT * FROM submissions
I've tried putting things in quotes, using the RANK function instead, and fiddling with whitespace, but the query still doesn't run. What is wrong here?
My guess is that you are running a version of MySQL which is earlier than 8+, one which does not support ROW_NUMBER. There are a few options for simulating ROW_NUMBER in earlier versions of MySQL. One is to use user variables:
SELECT *,
(#row_number:=#row_number + 1) AS rn
FROM submissions, (SELECT #row_number := 0) tmp
ORDER BY score;
The statement is like SELECT * FROM db.table group by id desc;
Would raise an error like
15:02:24 SELECT * FROM db.table group by id
desc LIMIT 0, 10 Error Code: 1064. 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 'desc LIMIT 0, 10' at line 1 0.00014
sec
on MySQL 8.0.13 in Ubuntu 18.04 Desktop 64bit
which would be fine on MySQL 5.7 in Windows or CentOS or Ubuntu.
I know basically, the select statement is like.
SELECT statement... [WHERE condition | GROUP BY `field_name(s)` HAVING condition] ORDER BY `field_name(s)` [ASC | DESC];
So is this 5.7's problem not to issue the error?
Or something more complicated on SQL standard?
I have the same issue, so for MySQL 8, I used the sql like that:
SELECT * FROM db.table
group by id
order by id desc
Taking from #P.Salmon's comment for the question.
If you look up the select statement in the manual
http://dev.mysql.com/doc/refman/5.7/en/select.html you will see
that up to 5.7 asc|desc are optional modifiers to the group by
statement which are no longer present from 8.0.and if you look at the
upgrade documentation
https://dev.mysql.com/doc/refman/8.0/en/upgrading-from-previous-series.html#upgrade-sql-changes
This deprecation is documented.
Since this situation, #Linda Li's answer could be a good option.
This query makes no sense:
SELECT *
FROM db.table
GROUP BY id DESC;
You are doing an aggregation query. So (presumably), the table has multiple rows per id. Those are condensed down to one row. What values should be used for the other columns? It is sad that MySQL ever supported this syntax. So a welcome change is that ONLY_FULL_GROUP_BY is now the default.
A small hint is that using an aggregation query with no aggregation functions is suspicious.
Perhaps you want:
select id, min(col1), min(col2), . . .
from t
group by id;
Or more likely, you want a particular row, such as the "earliest" or "most recent", something like:
select t.*
from t
where t.createdAt = (select min(t2.createdAt) from t t2 where t2.id = t.id);
We are trying to get the length of a physical exercise by using the timestamps on our sensor data.
We currently have the following query:
SELECT UNIX_TIMESTAMP(
SELECT HAAS2.trainingsdata.timestamp
FROM HAAS2.trainingdata
WHERE HAAS2.trainingsdata.training_id= 1
ORDER BY timestamp DESC LIMIT 1)
- UNIX_TIMESTAMP(
SELECT HAAS2.trainingsdata.timestamp
FROM HAAS2.trainingdata
WHERE HAAS2.trainingsdata.training_id= 1
ORDER BY timestamp ASC LIMIT 1)
AS output
(enters added for readability)
When testing this query in phpMyAdmin we get the following error:
#1064 - 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 'SELECT HAAS2.trainingsdata.timestamp FROM HAAS2.trainingdata
WHERE HAAS2.trainin' at line 1
We've tried different ways to write down the query all resulting in the same error. We don't understand where the syntax error lies.
SELECT max(UNIX_TIMESTAMP(timestamp)) -
min(UNIX_TIMESTAMP(timestamp)) AS output
FROM HAAS2.trainingdata
WHERE training_id = 1
i'm trying to run this in sql query, but not working. I tried single cast, it works fine, but when i tried to add two cast, it gives error
#1064 - 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 'FROM useradvert WHERE optionsalerent='For sale' ORDER BY cast (rm as signed)' at line 1
This query below works.
SELECT * FROM popol WHERE optsale='For sale' ORDER BY cast(rm as signed) ASC
THis one doesn't work
SELECT * FROM popol WHERE optsale='For sale' ORDER BY cast(rm as signed) ASC, cast(salary as signed) ASC
I need to output both rm and salary rm. Both are integer values. Tqs in advance.