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Results tagged with mysql
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user 5759
All versions of MySQL (not Microsoft SQL Server). Please also add a version-specific tag like mysql-5.7 if that is relevant to the question.
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Query performance with subquery and IN clause
The MySQL version I'm using is 5.5.8-log MySQL Community Server (GPL)
I'm just wondering why the performance of both queries isn't very similar. Thanks. … Update:
Here are the create table statements:
mysql> SHOW CREATE TABLE readings\G
*************************** 1. row ***************************
Table: readings
Create Table: CREATE TABLE `readings …
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