SQL syntax debug
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How to debug MySQL query syntax
Approach 1: Reduce the complexity of Sql query
Steps:
- Reduce the complexity of SQL syntax ex: reduce the WHERE condition
- Examine the sub query part only
- Enable the MySQL server log. Details on Testing#Database_server
- Disable unnecessary database operation permission
Approach 2: Using MySQL syntax checker
MySQL :: MySQL Workbench (blog: The MySQL Workbench Developer Central Site): Syntax checker for MySQL statements. Required to install the software.- Mimer SQL Developers - Mimer SQL Validator Syntax checker for SQL-2003 standard and so on. Not required to install the software, checking result was able to be viewed using the browser.
- cweiske.de: tools: PHP-SQLlint: Required to install the software.
- More on Where can I find a good MySQL syntax checker? - Quora
Approach 3: Beautify the Sql syntax
Beautify the SQL syntax for better readability.
- Using the text editor Sublime, and enable the Menu option: View > Syntax >SQL. The syntax will become colorful for easy to read!
- Instant SQL Formatter
Related articles
MySQL server configuration
Further reading
- Craig Kerstiens (2016). Writing more legible SQL [Last visited: 2016-11-03]