Modifying Data
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:
[CData].[Employee Management].Leave_Types_table = [CData].[Employee Management].Leave_Types.metadata.tables["[CData].[Employee Management].Leave_Types"]
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([CData].[Employee Management].Leave_Types_table.insert(), {"ID": "Jon Doe", "Leave_Type": "Sick"})
Update
The following example modifies an existing record in the table:
session.execute([CData].[Employee Management].Leave_Types_table.update().where([CData].[Employee Management].Leave_Types_table.c.Id == "98891000000010007").values(ID="Jon Doe", Leave_Type="Sick"))
Delete
The following example removes an existing record from the table:
session.execute([CData].[Employee Management].Leave_Types_table.delete().where([CData].[Employee Management].Leave_Types_table.c.Id == "98891000000010007"))