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https://www.w3resource.com/mysql/subqueries/index.php
MySQL subquery is a SELECT query that is embedded in the main SELECT statement. The subquery can be nested inside a SELECT, INSERT, UPDATE, or DELETE statement or inside another subquery. Also see Row Subqueries, Subqueries with EXISTS or NOT EXISTS, Correlated Subqueries and Subqueries in the FROM Clause.
https://dev.mysql.com/doc/refman/8.0/en/subquery-errors.html
Unsupported subquery syntax: ERROR 1235 (ER_NOT_SUPPORTED_YET) SQLSTATE = 42000 Message = "This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'" This means that MySQL does not support statements like the following: SELECT * FROM t1 WHERE s1 IN (SELECT s2 FROM t2 ORDER BY s1 LIMIT 1)
https://dev.mysql.com/doc/refman/8.0/en/optimizing-subqueries.html
MySQL rewrites IN, ALL, ANY, and SOME subqueries in an attempt to take advantage of the possibility that the select-list columns in the subquery are indexed. MySQL replaces subqueries of the following form with an index-lookup function, which EXPLAIN describes as a special join type (unique_subquery or index_subquery):
https://dba.stackexchange.com/questions/228706/alternate-to-use-limit-in-subquery-in-mysql
Alternate to use LIMIT in subquery in mysql? Ask Question ... This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'` ... It makes no sense to group by a and select b, c in a query. And while MySQL allows it, it is a guaranteed way to get garbage results.
https://stackoverflow.com/questions/5004129/problem-with-limit-in-all-any-some-subquery
This limitation is a pain if you want to get something like "top N rows for each group". But in your case I wouldn't use that feature even if it were possible.
https://dev.mysql.com/doc/refman/8.0/en/comparisons-using-subqueries.html
version 8.0 5.7 ... The most common use of a subquery is in the form: non_subquery_operand comparison_operator ... WHERE 'a' = (SELECT column1 FROM t1) MySQL also permits this construct: non_subquery_operand LIKE (subquery) At one time the only legal place for a subquery was on the right side of a comparison, and you might still find some old ...
https://dev.mysql.com/doc/refman/5.6/en/subqueries.html
version 5.6 8.0 current ... Here is an example statement that shows the major points about subquery syntax as specified by the SQL standard and supported in MySQL: DELETE FROM t1 WHERE s11 > ANY (SELECT COUNT(*) /* no hint */ FROM t2 WHERE NOT EXISTS (SELECT * FROM t3 WHERE ROW(5*t2.s1,77)= (SELECT 50,11*s1 FROM t4 UNION SELECT 50,77 FROM ...
https://dev.mysql.com/doc/refman/5.7/en/subquery-restrictions.html
mysql> SELECT * FROM t1 WHERE s1 IN (SELECT s2 FROM t2 ORDER BY s1 LIMIT 1); ERROR 1235 (42000): This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery' MySQL permits a subquery to refer to a stored function that has data-modifying side effects such as inserting rows into a table.
http://www.informit.com/articles/article.aspx?p=377653&seqNum=8
Apr 08, 2005 · Performing Multiple-Table Retrievals with Subqueries. Subquery support is a capability that allows one SELECT statement to be written within parentheses and nested inside another. Here's an example that looks up the IDs for grade event records that correspond to tests ('T') and uses them to select scores for those tests:SELECT * FROM score WHERE event_id IN (SELECT event_id …
https://mariadb.com/kb/en/subquery-limitations/
SELECT * FROM staff WHERE name IN (SELECT NAME FROM customer ORDER BY name LIMIT 1); ERROR 1235 (42000): This version of MariaDB doesn 't yet support ' LIMIT & IN / ALL / ANY / SOME subquery ' is not. Modifying and Selecting from the Same Table. It's not possible to both modify and select from the same table in a subquery. For example:
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