How to Resolve Laravel Eloquent Query Error: Incompatible with sql_mode=only_full_group_by?

Laravel Eloquent Query Error: Incompatible with sql_mode=only_full_group_by

In certain scenarios involving Laravel Eloquent queries, you may encounter an error message stating:

<code class="text">SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1
of SELECT list is not in GROUP BY clause and contains nonaggregated
column 'myshop.products.id' which is not functionally dependent on
columns in GROUP BY clause; this is incompatible with
sql_mode=only_full_group_by</code>

This error is caused by the MySQL strict mode, which requires that all columns in the SELECT list be either grouped or aggregated.

Solution: Disable MySQL Strict Mode

The easiest and most effective solution to this issue is to disable the MySQL strict mode in your database connection settings. This can be achieved by adding the following configuration to your database.php file:

<code class="php">'connections' => [
    'mysql' => [
        // Behave like MySQL 5.6
        'strict' => false,

        // Behave like MySQL 5.7
        'strict' => true,
    ]
]</code>

Setting 'strict' to 'false' will allow your queries to execute without the constraint imposed by sql_mode=only_full_group_by.

Advanced Configuration

For more fine-tuned control over MySQL strict mode behavior, you can refer to Matt Stauffer's blog post on the subject:

<code class="text">https://mattstauffer.com/blog/mysql-config-for-laravel-developers</code>

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