What is the easiest way to clear a database from the CLI with manage py in Django

Question

I am using Django to build a website with MySQL  Now as I am learning so I need to change the Model very often so I want that all tables get cleared and new table get created   But syncdb doesn t touch existing tables  Is there any  better way to handle this problem

User · Accepted Answer

If you don t care about data   Best way would be to drop the database and run syncdb again  Or you can run   For Django    1 5  python manage py flush   For Django  lt  1 5  python manage py reset appname    you can add --no-input to the end of the command for it to skip the interactive prompt    If you do care about data   From the docs      syncdb will only create tables for   models which have not yet been   installed  It will never issue ALTER   TABLE statements to match changes made   to a model class after installation    Changes to model classes and database   schemas often involve some form of   ambiguity and  in those cases  Django   would have to guess at the correct   changes to make  There is a risk that   critical data would be lost in the   process       If you have made changes to a model   and wish to alter the database tables   to match  use the sql command to   display the new SQL structure and   compare that to your existing table   schema to work out the changes    https   docs djangoproject com en dev ref django-admin   Reference  FAQ - https   docs djangoproject com en dev faq models  if-i-make-changes-to-a-model-how-do-i-update-the-database  People also recommend South   http   south aeracode org docs about html key-features    but I haven t tried it

User · Answer

I think Django docs explicitly mention that if the intent is to start from an empty DB again  which seems to be OP s intent   then just drop and re-create the database and re-run migrate  instead of using flush        If you would rather start from an empty database and re-run all   migrations  you should drop and recreate the database and then run   migrate instead    So for OP s case  we just need to    Drop the database from MySQL Recreate the database Run python manage py migrate

User · Answer

Using Django Extensions  running     manage py reset db   Will clear the database tables  then running     manage py syncdb   Will recreate them  south may ask you to migrate things

User · Answer

Quickest  drops and creates all tables including data      manage py reset appname     manage py dbshell   Caution    Might not work on Windows correctly  Might keep some old tables in the db

User · Answer

You can use the Django-Truncate library to delete all data of a table without destroying the table structure  Example   First  install django-turncate using your terminal command line   pip install django-truncate   Add  quot django truncate quot  to your INSTALLED APPS in the settings py file   INSTALLED APPS                  django truncate       Use this command in your terminal to delete all data of the table from the app   python manage py truncate --apps app name --models table name

[python] What is the easiest way to clear a database from the CLI with manage.py in Django?

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