DatabaseMetaData getImportedKeys

Question

Hi All,
I am trying to fetch the primary and foreign keys of a table. But the getImportedKeys() method always returns empty result set.I have the primary key set on the table. I am using the following code.
ResultSet rs = dmdata.getImportedKeys(null,dbname,tableName);
     while(rs.next()) {
     String pkTable = rs.getString("PKTABLE_NAME");
String pkColumn = rs.getString("PKCOLUMN_NAME"); /* here */
String fkTable = rs.getString("FKTABLE_NAME");
String fkColumn = rs.getString("FKCOLUMN_NAME"); /* and here */
The result set is empty with the above code
Any suggestions would be of great help.
Thanks,
Ashok Vytla

Answer 1

Hi I am using Oracle 9i and using the following java code
DatabaseMetaData dmdata=connection.getMetaData();
//ResultSet rs = dmdata.getImportedKeys(null,dbname,tableName);
ResultSet rs = dmdata.getPrimaryKeys(null,null,tableName);
System.out.println("primaryKey--> rs.next() "+rs.next());
     while(rs.next()) {
     String pkTable = rs.getString("PKTABLE_NAME");
     System.out.println("primaryKey--> pkTable "+pkTable);
     String pkColumn = rs.getString("PKCOLUMN_NAME"); /* here */
     System.out.println("primaryKey--> pkColumn "+pkColumn );
     String fkTable = rs.getString("FKTABLE_NAME");
     System.out.println("primaryKey--> fkTable "+fkTable);
     String fkColumn = rs.getString("FKCOLUMN_NAME"); /* and here */
     System.out.println("primaryKey--> fkColumn "+fkColumn);
//the above result always returns empty rows