Oracle relational tables with XY field values are synchronized to PG database and converted to geometric fields

1. download oracle_fdw
https://github.com/laurenz/oracle_fdw/releases
2. Move files to pg Under installation path
The download will complete zip Package decompression , hold 【lib】 The folder oracle_fdw.dll and 【share/extension】 The three files in the directory are copied to PostgreSQL Install under directory 【lib】 The folder and 【share/extension】 In the catalog .

-- establish oracle_fdw
create extension oracle_fdw;
-- Statement can query oracle_fdw extension,
 select * from pg_available_extensions;
3. adopt oracle_fdw visit oracle
-- Create access oracle The connection of
create server oracle foreign data wrapper oracle_fdw options(dbserver '127.0.0.1:1521/orcl');
-- grant postgres User access rights
grant usage on foreign server oracle to postgres;
-- Create to oracle Mapping
create user mapping for postgres server oracle options(user 'gis',password 'gis');
create foreign table point(
tp_guid  uuid,
x     numeric,
y     numeric,
lng     numeric,
lat     numeric,
remarks varchar(150)
) server oracle options(schema 'GIS',table 'POINT');  //scheme table The name must be capitalized
-- stay pg Medium visit oracle Table of
select st_geomfromtext('POINT('||X||' '||Y||')',4550) from point

【 In addition ：oracle Data addition and deletion pg The data will change , Keep it in real time 】