HR SCHEMA FILES PRESENT BUT TABLES NOT SHOWN IN SQL DEVELOPER - PLS HELP

Dear DBA's,
I am studying towards the OCA and working through the SQL Fundamentals I Exam guide text book by John Watson and Roopesh Ramklass. I have a problem with accessing the HR Schema tables in SQL Developer. I can get connected to the HR schema but no information is available when i click on the + sign next to the "Tables (filtered)" link in SQL Developer under Human Resources - BTW (I've downloaded Oracle 11G)
Please help, I've tried the following already;
1. Downloaded the HR Schema sample scripts again
2. Resetting the Sample schema with this syntax in SQL PLUS - @?/demo/schema/mksample systempwd syspwd hrpwd oepwd pmpwd ixpwd shpwd bipwd default_tablespace temp_tablespace log_file_directory/
3. I have no Master script file so I cant recreate the sample scripts
I've been reading forums and trying to Google but I am too new at this and just can't get the HR schema to display all the information in SQL Developer. Please help as I really badly need to practice the exercises in the text book.
Any help to resolve this will be greatly appreciated.
Ali
Edited by: 942730 on Jun 26, 2012 1:15 AM

942730 wrote:
Dear DBA's,
I am studying towards the OCA and working through the SQL Fundamentals I Exam guide text book by John Watson and Roopesh Ramklass. I have a problem with accessing the HR Schema tables in SQL Developer. I can get connected to the HR schema but no information is available when i click on the + sign next to the "Tables (filtered)" link in SQL Developer under Human Resources - BTW (I've downloaded Oracle 11G)
Please help, I've tried the following already;
1. Downloaded the HR Schema sample scripts again
2. Resetting the Sample schema with this syntax in SQL PLUS - @?/demo/schema/mksample systempwd syspwd hrpwd oepwd pmpwd ixpwd shpwd bipwd default_tablespace temp_tablespace log_file_directory/
3. I have no Master script file so I cant recreate the sample scripts
I've been reading forums and trying to Google but I am too new at this and just can't get the HR schema to display all the information in SQL Developer. Please help as I really badly need to practice the exercises in the text book.
Any help to resolve this will be greatly appreciated.
Alisqlplus
/ as sysdba
alter user HR identified by hr account unlock;
connect hr/hr
select table_name from user_tables;
exit

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