How Can I Retrieve the Raw, Compiled SQL Query from a SQLAlchemy Expression?

Retrieving Raw, Compiled SQL Queries from SQLAlchemy Expressions

SQLAlchemy's query interface provides a powerful abstraction for constructing database queries. However, accessing the underlying SQL statement can be challenging. To obtain the raw, compiled SQL query with bound parameters, consider the following options:

using the literal_binds argument

The documentation suggests using literal_binds to print a query q with parameters:

print(q.statement.compile(compile_kwargs={"literal_binds": True}))

Caveats

• This approach is only supported for basic types such as integers and strings.
• If bindParam() is used without a preset value, it is not possible to convert it to string.

Documentation Warning

The documentation warns that you should not use this method with data from untrusted sources such as web forms. SQLAlchemy's mechanisms for converting Python values ​​to SQL string values ​​do not securely handle untrusted data and do not check the type of data being passed.

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