JDBC Tutorial
Data about data is metadata.
Retrieves a DatabaseMetaData object that contains metadata about the database to which this Connection object represents a connection. The metadata includes information about the database's tables, its supported SQL grammar, its stored procedures, the capabilities of this connection, and so on.
DatabaseMetaData dbMeta = connection.getMetaData();
Resultset object has rs.getMetaData() method
ResultSet rs = stmt.executeQuery(sql);
ResultSetMetaData rsMetaData = rs.getMetaData();
Parameter Metadata available on parametarized queries. such as PreparedStatement and CallableStatement objects. Programmer can find out , parameter name, type, scale,precision, in case of stored procedures, mode of the parameter, type etc.,
ParameterMetaData paramMeta = pstmt.getParameterMetaData()
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