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Django Model Data Types and Fields List

Last Updated : 14 Nov, 2025
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Model fields define what kind of data a database column will store and how that data should be handled.

  • Every field represents a specific data type and controls how data is stored and validated.
  • Fields also decide the default form widget used for user input.
  • Django uses field classes to determine the database column type, form widget, and validation rules.
  • Reserved names like save, delete, and clean should not be used as field names to avoid conflicts with Django’s model system.
Python
from django.db import models

class Musician(models.Model):
    first_name = models.CharField(max_length=200)
    last_name = models.CharField(max_length=200)
    instrument = models.CharField(max_length=200)

class Album(models.Model):
    artist = models.ForeignKey(Musician, on_delete=models.CASCADE)
    name = models.CharField(max_length=100) 
    release_date = models.DateField()
    num_stars = models.IntegerField()
  • CharField is used for short text like names or instruments.
  • IntegerField stores numbers (e.g., star ratings).
  • DateField holds date values.
  • ForeignKey establishes a relationship between two models (Album- Musician). 

After creating and applying migrations, the above two tables are now created in the database.

Viewing and Inspecting Database Tables

To view the tables and their structure, use Django’s database shell. Open the DB shell by running:

python manage.py dbshell

Then run the SQLite commands:

.tables
.schema geeks_musician
.schema geeks_album

sqlite3
sqlite DB schemas of geeks_musician and geeks_album

DB Browser for SQLite can also be used to view the database in a clear and easy-to-read interface:

django19
Schema of album table
django20
Schema of musician table

Common Field Types in Django

Field NameDescription
AutoFieldIt is an IntegerField that automatically increments.
BigAutoFieldIt is a 64-bit integer, much like an AutoField except that it is guaranteed to fit numbers from 1 to 9223372036854775807.
BigIntegerFieldIt is a 64-bit integer, much like an IntegerField except that it is guaranteed to fit numbers from -9223372036854775808 to 9223372036854775807.
BinaryFieldA field to store raw binary data. 
BooleanFieldA true/false field. 
The default form widget for this field is a CheckboxInput.
CharFieldA field to store text-based values.
DateFieldA date, represented in Python by a datetime.date instance
DateTimeFieldIt is used for date and time, represented in Python by a datetime.datetime instance.
DecimalFieldIt is a fixed-precision decimal number, represented in Python by a Decimal instance.
DurationFieldA field for storing periods of time.
EmailFieldIt is a CharField that checks that the value is a valid email address.
FileFieldIt is a file-upload field.
FloatFieldIt is a floating-point number represented in Python by a float instance.
ImageFieldIt inherits all attributes and methods from FileField, but also validates that the uploaded object is a valid image.
IntegerFieldIt is an integer field. Values from -2147483648 to 2147483647 are safe in all databases supported by Django.
GenericIPAddressFieldAn IPv4 or IPv6 address, in string format (e.g. 192.0.2.30 or 2a02:42fe::4).
PositiveIntegerFieldLike an IntegerField, but must be either positive or zero (0).
PositiveSmallIntegerFieldLike a PositiveIntegerField, but only allows values under a certain (database-dependent) point.
SlugFieldSlug is a newspaper term. A slug is a short label for something, containing only letters, numbers, underscores or hyphens. They’re generally used in URLs.
SmallIntegerFieldIt is like an IntegerField, but only allows values under a certain (database-dependent) point.
TextFieldA large text field. The default form widget for this field is a Textarea.
TimeFieldA time, represented in Python by a datetime.time instance.
URLFieldA CharField for a URL, validated by URLValidator.
UUIDFieldA field for storing universally unique identifiers. Uses Python’s UUID class. When used on PostgreSQL, this stores in a uuid datatype, otherwise in a char(32).

Note: NullBooleanField (a boolean field that allowed True, False, or NULL) is deprecated. Use BooleanField(null=True, blank=True) instead.


Parameters in Django fields
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