问题
I am facing issue while creating oracle_fdw.
I have copied oracle_fdw.dll to postgres lib folder * both .sql file and control file to shrared/extension
now when I connect to psql with superadmin user & make an query
create extension oracle_fdw;
I am getting response
ERROR: could not load library "D:/postgresdb/lib/oracle_fdw.dll": The specified procedure could not be found.
回答1:
From the error it seems that the oracle_fdw library is not available in the lib folder of postGreSQL installation directory.
You may download the Oracle fdw extension/or library file from https://github.com/laurenz/oracle_fdw/releases/ - please download the one suitable to your system environment(eg : 32bit windows/64bit).
Extract the downloaded .zip file.
- copy the oracle_fdw.dll from \oracle_fdw-1.4.0-pg95-win64\lib folder to \Program Files\PostgreSQL\9.5\lib dir & 2.copy all the files from oracle_fdw-1.4.0-pg95-win64\share\extension to \Program Files\PostgreSQL\9.5\share\extension
Now restart postGreSQL server and try.
Note : Always download and use compatible version of library; e.g.: PostgreSQL 9.5 version you should download same version of oracle_fdw zip.
回答2:
Just had the same problem so this is what i did to resolve it. Not sure if all steps are needed since i was trying untill it worked.
Downloaded:
Instant Client Package
Instant Client Package - SQL*Plus
Instant Client Package - ODBC
From oracle (http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html)
Unzipped everything to one folder (c:\oracle)
Ran odbc_install in that folder
Added folder to PATH variable (System properties - Environment variables)
Restarted postgresql server
After that it worked. Also notice that you need the same version as your server (x86, x64).
Hope this helps.
来源：https://stackoverflow.com/questions/38893806/could-not-load-library-for-oracle-fdw