Overview
In general, the SQL query optimizer analyzes many options for a given query, estimates the cost of each option, and finally selects the option with the lowest cost. If the query optimizer chooses the wrong plan, the performance difference may be from a few milliseconds to a few minutes. Fortunately, there are many third-party SQL query optimization tools that can automatically optimize each SQL query. These tools greatly simplify the work of developers and database administrators because they provide correct query tuning suggestions and index suggestions. Now that we know the importance of the SQL query optimizer, the following recommends a free optimization tool-EverSQL.
EverSQL
EverSQL is an online SQL query optimizer, which provides the easiest way to monitor the performance of SQL queries. EverSQL has the following functions:
- Easily optimize SQL queries
- Easy to use
- Equipped with an intuitive interface
- No need to download or install.
- Just upload or enter the query, upload the architecture and get optimized query results
- No database access is required.
- Support MySQL, MariaDB and PerconaDB databases.
- Provide the best index suggestions.
Some pages show:
Tool interface:
https://www.eversql.com/sql-syntax-check-validator/
Through this SQL query optimization tool can help you choose the least time and resources to execute the correct query, while providing the best performance. More devops and DBA content will be shared later, interested friends can follow ~
Reprinted from: https://www.toutiao.com/a6731334604449399308/?tt_from=mobile_qq&utm_campaign=client_share×tamp=1586747905&app=news_article&utm_source=mobile_qq&utm_medium=toutiao_ios&req_id=2020041311182501011687524Cid4