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Each derived table should have alias

Reports derived tables without aliases.

Example (MySQL):

CREATE TABLE table1 (id INT, name VARCHAR(20), cats FLOAT); CREATE TABLE table2 (id INT, age INTEGER); SELECT id AS ID, name, cats, age FROM (SELECT table1.id, name, cats, age FROM table1 JOIN table2 ON table1.id = table2.id);

According to Derived Tables at dev.mysql.com, an alias is mandatory. You can add the alias by using the Introduce alias quick-fix.

After the quick-fix is applied:

SELECT id AS ID, name, cats, age FROM (SELECT table1.id, name, cats, age FROM table1 JOIN table2 ON table1.id = table2.id);

Inspection Details

Available in:

AppCode 2023.3, CLion 2023.3, DataGrip 2023.3, DataSpell 2023.3, GoLand 2023.3, IntelliJ IDEA 2023.3, JetBrains Rider 2023.1, PhpStorm 2023.3, PyCharm 2023.3, Qodana for .NET 2023.1, Qodana for JVM 2023.3, Qodana for PHP 2023.3, Qodana for Ruby 2023.3, RubyMine 2023.3

Plugin:

Database Tools and SQL, 233.SNAPSHOT

Last modified: 13 July 2023