Executes SQL statements. hi, i'am student from Argentina, Buenos Aires and i have lot of problem to search the answer to "how truncate all base data in the. SQLAlchemy Core Dialect Defines the. from sqlalchemy import * from [HOST]ative import declarative_base from [HOST] import scoped_session, sessionmaker, relation from zope. It might be that the connection created by the first function is still active after you call it. . SQLAlchemy 2 In Practice: Learn to program relational databases in Python step by step (English Edition) eBook: Grinberg, Miguel: [HOST]: Tienda. Many tiny python examples, ready to be used executing single files - davidam/python-examples. Re: Consulta error: remaining connection slots are reserved for non-replication superuser connections ; arpug · Re. SQLAlchemy Core Connection Provides functionality for a wrapped DB-API connection. You are not closing that. 2) format wiithon db (preferencies --> utility and tools --> format DB). If the this doesn't solve your problem, open a new bug with all steps to reproduce it.