META DATA

The data about data is called as MetaData. It gives more information about the original data. In JDBC we have 3 metadata objects. They are:

1. ResultSetMetaData (provides information about ResultSet object)
2. DatabaseMetaData (provides information about Database)
3. ParameterMetaData (provides information about Parameters [positional parameters])

    ResultSetMetaData object provides more information about ResultSet object. ResultSetMetaData gives the no.of columns available in ResultSet as well as the name of the columns available in ResultSet and their Datatypes. Let us write a sample program on ResultSetMetaData.

Fig: Program for ResultSetMetaData