There are 2 samples. In the first example, it gives faster results when using orderby. (according to phpmyadmin speed report) In the other example, I don't use order by, it gives slower results. (according to phpmyadmin speed report) Isn't it…
I have a table, with string on one of the columns, the format of the string is ISO 8601 (with TZ). When I'm trying to run the following query: select * from `orders` where STR_TO_DATE('last_ship_date', '%Y-%m-%dT%TZ') >= STR_TO_DATE('2020-06-27 21:13:14', '%Y-%m-%d…
Besides having mariadb 10.1.36-MariaDB I get following error. EXPLAIN ANALYZE select 1 MySQL said: Documentation 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to…
Clearly, adding indexing to Mysql tables speed up access. Does WordPress generates this simple optimization or should I perform it manually, or use one of the many optimizations plugins? For example: in phpMyadmin all you need is to select table…