Commands can be executed individually by the session with a call to "execute()".

Obtaining the Table Object

The query supplied to this method is constructed using the associated Table object of a mapped class. This Table object is obtained from the mapped class's metadata field, as below:

Tweets_table = Tweets.metadata.tables["Tweets"]

Once the table object is obtained, the write operations are executed in the following ways. The queries are executed immediately without the need for a call to "commit()":

Insert

The following example adds a new record to the table:

session.execute(Tweets_table.insert(), {"From_User_Name": "My twitter message", "Text": "My twitter message 2"})

Update

The following example modifies an existing record in the table:

session.execute(Tweets_table.update().where(Tweets_table.c.Id == "123456789").values(From_User_Name="My twitter message", Text="My twitter message 2"))

Delete

The following example removes an existing record from the table:

session.execute(Tweets_table.delete().where(Tweets_table.c.Id == "123456789"))