![Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium](https://miro.medium.com/v2/resize:fit:1400/1*zJt6Wnd3ijw2BrZ6Bu1j4g.png)
Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium
![Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium](https://miro.medium.com/v2/resize:fit:1400/1*98r6UlrL3q-az7lwyUXxdg.png)
Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium
![Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium](https://miro.medium.com/v2/resize:fit:1400/1*u-rGV15JBbxl10CjwV5wEA.png)
Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium
![mysql - "key_len" column is more important or "rows" column in the result of EXPLAIN? - Stack Overflow mysql - "key_len" column is more important or "rows" column in the result of EXPLAIN? - Stack Overflow](https://i.stack.imgur.com/1Iqtj.png)
mysql - "key_len" column is more important or "rows" column in the result of EXPLAIN? - Stack Overflow
![Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium](https://miro.medium.com/v2/resize:fit:1400/1*mvnC4U0oKDjimn-wRbtnQQ.png)
Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium
![Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium Using EXPLAIN in Mysql to analyze and improve query performance | by Denys Golotiuk | DataDenys | Medium](https://miro.medium.com/v2/resize:fit:1400/1*2T4UxjU2u__cPW8-mp00AQ.png)