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This example is similar to the second, but this time we ask the database what the datatypes of the columns of the table are with odbc_list_data_types/3.
:- use_module(library(odbc)). example3 :- odbc_env_open(EnvHandle), odbc_db_open('MyDatabase', EnvHandle, ConnectionHandle), odbc_query_open(ConnectionHandle, StatementHandle), odbc_list_data_types(StatementHandle, scratch(vehicle, wheels), DataTypes), odbc_query_execute_sql(StatementHandle, 'INSERT INTO scratch (vehicle, wheels) VALUES (?, ?)', ["railwaycar", 8], DataTypes, ResultSet), odbc_query_close(ResultSet), odbc_db_close(ConnectionHandle), odbc_env_close(EnvHandle).