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eXperDB-DB2PG: Data Migration tool for PostgreSQL


eXperDB-DB2PG is a data migration solution that transfers data from various source DBMSs to eXperDB or PostgreSQL. It works on JAVA basis, so there is no restriction on platforms such as Unix, Linux and Windows, and installation is not necessary and can be used easily.



  • Export full data or using WHERE clause.
  • Export Oracle Spatial data to PostGIS.
  • Export Oracle CLOB, BLOB object to PostgreSQL BYTEA.
  • Support for any platform such as Linux and Windows.
  • Faster than PostgreSQL COPY function.
  • Removing FK and INDEX before performing data import operation(Rebuild after termination).
  • Data export using select query is supported.
  • Selective extraction through exclusion table.
  • Support for Oracle, Oracle Spatial, SQL Server, Sybase, DB2, Mysql, Sybase, Altibase, Cubrid.


  • Export DDL from DB2, Sybase, Cubrid to PostgreSQL DDL.




1. System Requirements

  • OS : Developed and tested on Linux and Windows, but work on any UNIX-like system and Windows System
  • JDK : JDK 1.8 or later
  • Storage : With the SAM(Sequential Access Method) file, you need to enough free space to store the original data when transferring data.
  • From : Oracle(Including Oracle Spatial), SQL Server, MySQL, Sybase
  • To : eXperDB, PostgreSQL

2. Options

Option Description Mandatory
-c, --config <arg> Configuration file load for executing DB2PG command. (In the current version(1.1.2), the environment setting is not input as a parameter) Y
-M, --make-templates Create a configuration file to run the DB2PG command N
--rebuild-summary <arg> Summarizes constraint execution logs such as PK, FK, INDEX created and deleted in Target Database. (Create a file using '>' or '>>') N
--unload-summary <arg> Summarize the logs loaded on the target using the Import.sql script generated from the Source Database. (Create a file using '>' or '>>') N

3. Examples(On Linux)

Command E.g. use
Help ./
Execute ./ -c db2pg.config
Create Import Log file psql -U db2pg -d db2pg -p 5432 -h -f import.sql > import.log
Import Log Summary ./ --unload-summary ./db2pg-result/import.log
Create Rebuild log file psql -U db2pg -d db2pg -p 5432 -h -f fk_drop.sql > rebuild.log
psql -U db2pg -d db2pg -p 5432 -h -f idx_drop.sql >> rebuild.log
psql -U db2pg -d db2pg -p 5432 -h -f idx_create.sql >> rebuild.log
psql -U db2pg -d db2pg -p 5432 -h -f fk_create.sql >> rebuild.log
Rebuild Log Summary bash --rebuild-summary ./db2pg-result/rebuild/rebuild.log


Copyright (c) 2016-2019, eXperDB Development Team All rights reserved.


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