Answer Posted / sowji
NDI is a protocol / mechanism used to lookup data / information, resources from a SPI that obeys the JNDI format. JNDI is available for manipulating naming services and directory services only. Examples include JNDI trees of EJB Containers, LDAP Directory Servers etc...
http://java.sun.com/products/jndi/overview.html
JDBC is a database specific protocol that Database vendors support for Java Data Access.
http://java.sun.com/products/jdbc/overview.html
JNDI is used when your are trying to advertise and lookup data from a naming service or directory service and JDBC is used when you are querying / updating data in a Database server.
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