it's not unheard of that people sometimes do a quick ping, like :
engine = create_engine(...)
engine.scalar("select 1")
just to get it connected and initialized with server information.
On Wed, Feb 21, 2018 at 6:26 AM, <[email protected]> wrote:
> Simon, thank you for the reference! That makes sense…
>
> Jens
>
>
> On Wednesday, February 21, 2018 at 7:15:20 PM UTC+10, Simon King wrote:
>>
>> SQLAlchemy doesn't connect to the database until it needs to. Creating
>> a Session by itself does not cause it to connect. This is mentioned in
>> the docs:
>>
>> http://docs.sqlalchemy.org/en/latest/orm/session_basics.html
>>
>> """
>> The Session begins in an essentially stateless form. Once queries are
>> issued or other objects are persisted with it, it requests a
>> connection resource from an Engine that is associated either with the
>> Session itself or with the mapped Table objects being operated upon.
>> This connection represents an ongoing transaction, which remains in
>> effect until the Session is instructed to commit or roll back its
>> pending state.
>> """
>>
>> Hope that helps,
>>
>> Simon
>
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>
> http://www.sqlalchemy.org/
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SQLAlchemy -
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http://www.sqlalchemy.org/
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