Why Am I Getting MySQL Error 1364: Field Lacks Default Value?

Troubleshooting MySQL Error 1364: Field Lacks Default Value

Upon transitioning from MAMP to a native MySQL environment, you may encounter an error related to missing default values in fields upon executing INSERT commands. This issue pertains to MySQL's strict mode, particularly in its STRICT_ALL_TABLES setting.

Cause:

When MySQL operates in strict mode, it enforce strict adherence to database rules and integrity, including not allowing null or empty values for fields without default values.

Resolution:

To resolve this issue, you can disable strict mode by running the following command:

<code class="sql">SET GLOBAL sql_mode=''</code>

Alternatively, you can modify your my.cnf configuration file to ensure that STRICT_ALL_TABLES is not set:

1. Open the my.cnf file for your MySQL installation.
2. Locate the [mysqld] section.

3. Check if there is a line that reads:

   sql_mode = STRICT_ALL_TABLES

4. If it exists, comment it out by adding a # at the beginning of the line.
5. Save and close the my.cnf file.

After making these changes, restart the MySQL service to apply the new settings. Your INSERT commands should now execute successfully without encountering the error regarding missing default values.

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