Data sources Data sources are used to create an import set so that data can be processed, if necessary, prior to being mapped onto a production table. Table 1. Data Source Types Type Description File Data is in a recognized file format, accessible locally or remotely through several file retrieval methods. JDBC Data is in a database, accessible using JDBC. ServiceNow supports Oracle, MySQL, Sybase, DB2 Universal, and MS SQL Server drivers. LDAP Data is in an LDAP server, accessible through the LDAP or LDAPS ports, 389 and 636 respectively. File type data sourcesYou can import a file from a local source, a remote network server, or another instance by providing a path and authentication information. JDBC type data sourceA JDBC data source retrieves its data via a JDBC driver, usually type 4 network.JDBC drivers for unsupported sourcesUse the following procedures to extend the data source to use a driver for a database that is not provided in the base system.LDAP type data sourceAn LDAP data source is automatically created when you configure your instance to integrate with LDAP.