Final answer:
The error message relates to database insertion where a required field 'id' has not been given a value. To resolve it, provide a value manually, utilize an auto_increment feature, or set a default value in the schema. It is also important to ensure proper database design and schema constraints.
Step-by-step explanation:
The error message "Field 'id' doesn't have a default value" suggests that you are trying to insert a record into a database table without providing a value for the 'id' field, which has been set to NOT NULL and has no default value set in the schema. This is a common issue when dealing with database management systems such as MySQL, PostgreSQL, or similar. When a field is set as NOT NULL, it means that you cannot insert a null value into this field; it requires a non-null value for every record.
To address this error, you need to ensure that you provide a unique value for the 'id' field every time you insert a new record. This can be done in several ways:
- Manually specify the 'id' field value in your INSERT statement.
- Use a sequence or auto_increment feature if your database supports it to automatically generate a unique 'id' for each new record.
- Set a default value for the 'id' field in the table schema if that makes sense for your application's logic.
Database design and ensuring proper implementation of schema constraints are crucial to successfully managing data integrity in a database.