How to Execute Raw SQL Queries Within Django Views?

Performing Raw SQL Queries in Django Views

In Django views, using raw SQL queries can provide direct access to the database, allowing for greater flexibility and efficiency in certain scenarios. To perform a raw SQL query in a Django view, consider the following steps:

1. Import the necessary module:

from django.db import connection

2. Establish a cursor:

cursor = connection.cursor()

3. Execute the raw SQL query:

cursor.execute('''YOUR_SQL_QUERY_HERE''')

4. Fetch the results (optional):

row = cursor.fetchone()

5. Print the results (optional):

print(row)

Example:

Consider the following sample code:

from app.models import Picture

def results(request):
    all = Picture.objects.all()
    # Perform raw SQL query to count votes for "yes"
    cursor = connection.cursor()
    cursor.execute('''SELECT count(*) FROM people_person WHERE vote = "yes"''')
    yes_count = cursor.fetchone()[0]
    return render_to_response(
        'results.html',
        {'picture': picture, 'all': all, 'yes': yes_count},
        context_instance=RequestContext(request)
    )

In this example, the results view uses a raw SQL query to fetch the count of votes for "yes" instead of relying on the Django ORM.

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