如何将数据从 postgres 数据库导入到 android sqlite

Question

I have a Postgres database server and I need to download the table records from postgres to tablet android (sqlite database). Is there a feature in Android to do this?

Example: There is a customer table in postgres and i need to import this table to sqlite in android.

Any tips are welcome.

Best regards.

Answer 1

This can be done by dumbing database in sql file from postgres and importing it to sqlite.

Dump database in a sql file.

pg_dump dbname > outfile.sql

Ref: http://www.postgresql.org/docs/9.1/static/backup-dump.html

Import database from sql dump file

sqlite> .read outfile.sql

Ref: https://www.sqlite.org/cli.html

You can dump specific table in postgres using following command:

pg_dump  --table=table dbname > outfile.sql

Answer 2

...also you should clean your dump file before conversion
to replace all true -> 't', false -> 'f'(but don't touch true and false in CREATE TABLE s)
remove all lines started with SET , SELECT , ALTER etc.
remove all mentions of SCHEMA . and OWNER
(sqlite does not understand it)
there should stay only commands CREATE TABLE and your data
such as INSERT INTO
and check data types - SQLite does not understand BIG_INT (and not only him)