Truncate table not working with SQL server sqlalchemy engine and pandas
I have the same problem with pandas
0.19.2 and sqlalchemy 1.1.5
.
As I see autocommit
is not forced in engine.execute()
when running a TRUNCATE
statement. If I force it manually then TRUNCATE
works perfectly:
from sqlalchemy.sql import text as sa_text
engine.execute(sa_text('''TRUNCATE TABLE tempy''').execution_options(autocommit=True))
It's fancy that DROP
works perfectly without forcing autocommit
...
Here is a full solution based from the question, using sqlalchemy 1.1.15 on Windows I was receiving errors trying to implement the other solutions:
import sqlalchemy
engine = sqlalchemy.create_engine('mssql://myserver/mydb?driver=SQL+Server+Native+Client+11.0?trusted_connection=yes')
connection = engine.connect()
truncate_query = sqlalchemy.text("TRUNCATE TABLE tempy")
connection.execution_options(autocommit=True).execute(truncate_query)
This worked for me:
from sqlalchemy.orm import sessionmaker
Session = sessionmaker(bind=engine)
session = Session()
session.execute('''TRUNCATE TABLE tempy''')
session.commit()
session.close()