# DENSE\_RANK

Published articles for DENSE\_RANK.

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## Emulating Window Functions in MySQL 5.7

DevFeed: [Emulating Window Functions in MySQL 5.7](<https://devfeed.tech/articles/emulating-window-functions-in-mysql-5-7-28938.md>)

Original publisher: [Read original article](<https://blog.jooq.org/emulating-window-functions-in-mysql-5-7/>)

Author: lukaseder

Published: 2023-01-20T11:07:00Z

Content type: tutorial

Language: en

Sources: [jOOQ](<https://devfeed.tech/sources/jooq.md>)

Topics: [MySQL](<https://devfeed.tech/topics/mysql.md>), [SQL](<https://devfeed.tech/topics/sql.md>), [Databases](<https://devfeed.tech/topics/databases.md>)

Tags: [dense-rank](<https://devfeed.tech/tags/dense-rank.md>), [deprecated](<https://devfeed.tech/tags/deprecated.md>), [emulations](<https://devfeed.tech/tags/emulations.md>), [local-variables](<https://devfeed.tech/tags/local-variables.md>), [mysql](<https://devfeed.tech/tags/mysql.md>), [mysql-5-7](<https://devfeed.tech/tags/mysql-5-7.md>), [ordering](<https://devfeed.tech/tags/ordering.md>), [rank](<https://devfeed.tech/tags/rank.md>), [row-number](<https://devfeed.tech/tags/row-number.md>), [sql](<https://devfeed.tech/tags/sql.md>), [window-functions](<https://devfeed.tech/tags/window-functions.md>)

### AI overview

This tutorial explains how to emulate window functions in MySQL 5.7 using user variables. It warns that the technique depends on incidental evaluation order, can break when query execution changes, and is deprecated in MySQL 8.x.

### Source excerpt

One of MySQL 8's biggest improvements is the support of window functions. As I always said in conferences, there's SQL before window functions and SQL after window functions. Once you start using them, you'll use them everywhere. Some of you poor souls are unfortunate enough to be stuck on MySQL 5.7, either of your own ... Continue reading Emulating Window Functions in MySQL 5.7 ->