The java.sql package contains interfaces and classes for JDBC API.

Interfaces:

☛ Connection

☛ Statement

☛ PreparedStatement

☛ ResultSet

☛ ResultSetMetaData

☛ DatabaseMetaData

☛ CallableStatement etc.

Classes:

☛ DriverManager

☛ Blob

☛ Clob

☛ Types

☛ SQLException etc.