The jdbc.cfg is for the database connection data, i.e. Server, Database, in particular the driver class and the URL for the jdbc driver to establish a connection to the database.

This file is organized in DSNs like the following:

# [PLINKDB]
#   #IP-adress or server name
# Server=
#   #Database name
# ServerDB=
#   #the jdbc driver class
# DriverClass=com.sap.dbtech.jdbc.DriverSapDB
#   #the complete URL for the jdbc driver
# URL=jdbc:sapdb://catia2.cadenas/PLINKDB

#Examples for different databases:
--------------------------------

#MSSQL with JTDS
#[PLINKDB_MSSQLJDBC]
#Server=136.230.230.214
#ServerDB=DB-test
#DriverClass=net.sourceforge.jtds.jdbc.Driver
#URL=jdbc:jtds:sqlserver://136.230.230.214:1433/PLINKDB

#Oracle:
#[PLINKDB_ORACLEJDBC]
#DriverClass=oracle.jdbc.driver.OracleDriver
#URL=jdbc:oracle:thin:@servername:1521:PLINKDB

#SAP-DB:
#[PLINKDB_SAPDBJDBC]
#DriverClass=com.sap.dbtech.jdbc.DriverSapDB
#URL=jdbc:sapdb://servername/PLINKDB

#MySQL:
#[PLINKDB_MYSQLJDBC]
#DriverClass=com.mysql.jdbc.Driver
#URL=jdbc:mysql://servername:3306/PLINKDB

#Derby (local)    (Experimental!):
#[PLINKDB_DERBYJDBC]
#DriverClass=org.apache.derby.jdbc.EmbeddedDriver
#URL=jdbc:derby:C:\data\derby\plinkdb

#Derby (net)   (Experimental!):
#[PLINKDB_DERBYJDBC]
#DriverClass=org.apache.derby.jdbc.ClientDriver
#URL=jdbc:derby://localhost:1527/plinkdb

#Firebird (Experimental!):
#[PLINKDB_FIREBIRDJDBC]
#DriverClass=org.firebirdsql.jdbc.FBDriver
#URL=jdbc:firebirdsql:host[/port]:/path/to/db.fdb
#example: jdbc:firebirdsql:ora10:/Dokumente und Einstellungen/Administrator/Desktop/firebird
 /data/PLINKDB.FDB#Path is relative to server without drive letter. Data has to be in the 
 same folder of the service executable.

#SQ-Lite (pldbdemo)
[PLDBDEMO_SQLITEJDBC]
#:VALS_S
#:HELP;default;IP-adress or server name, on which the database is installed
Server=localhost
#:VALS_S
#:HELP;default;The instance name of the database. Oracle: SID
ServerDB=pldbdemo
#:VALS_S
#:HELP;default;The jdbc driver class.
DriverClass=SQLite.JDBCDriver
#:VALS_S
#:HELP;default;The complete URL for the jdbc driver.
Url=jdbc:sqlite:/$CADENAS_USER/sqlite/pldbdemo.db3

For example, in the case of a PLDBDEMO installation the name PDBDEMO_SQLITEJDBC is used for database connection. This description should also be set in the PARTlinkManager under Extras --> Configure ERP environment --> tab Database.