How Can I See the SQL Queries Executed by My Django Application?

In-depth understanding of Django’s SQL queries

Django, as an excellent web development framework, uses SQL queries to interact with relational databases. To gain a deeper understanding of Django's database interactions, users may want to view the raw SQL queries executed during a query operation.

Use Django methods to reveal query details

Django provides several ways to view the raw SQL queries it generates. One way is to use django.db.connection.queries, which compiles a list of executed SQL queries. By leveraging this property, users can print the query to understand its structure and details.

<code class="language-python">from django.db import connection

print(connection.queries)</code>

Alternatively, queryset has a query attribute that contains the query to be executed. This property allows developers to access the underlying SQL statement, revealing the specific command Django wants to send to the database.

<code class="language-python">print(MyModel.objects.filter(name="my name").query)</code>

Note: Decoding unhandled queries

It’s important to note that the output you get from Django’s query methods is not pure SQL. Django uses a different approach, where it sends the query and parameters separately to the database adapter, which then performs the appropriate operations. Therefore, trying to send query output directly to the database may result in unexpected behavior.

Reset query for performance analysis

To help track the number of queries executed during a specific time period, Django provides the django.db function in reset_queries. This function allows the user to reset the query count, enabling the isolation and measurement of queries executed within a specific time interval.

<code class="language-python">from django.db import reset_queries
from django.db import connection

reset_queries()
# 在此处运行您的查询
print(connection.queries)
>>> []</code>

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