First, you need
AccessToPostgres is a tool to convert Access data to PostgreSQL.
Using AccessToPostgres you can batch export Access tables data to PostgreSQL tables easily and fast.
Batch transfer data from Access tables To PostgreSQL tables
Click “Wizard – Import All Tables” at task dialog.
then show the wizard.
1. Open Source.
2. Select Destination.
3. Select tables to import.
4. Import.
More about AccessToPostgres – the tool to move data from Access to PostgreSQL