http://asktom.oracle.com These are the questions on Ask Tom that have the most comments en-us Copyright 1999-2006, Oracle Corporation http://asktom.oracle.com/i/asktom2.gif http://asktom.oracle.com 50 50 Ask Tom is a forum where Tom Kyte, Oracle's Database Guru, answers questions regarding Oracle technology, specifically the database. http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2232358800346144240 Microsoft architects says that Object-Orienteted models is the best practice for abstractions of ERD's. For ORACLE developers the Entity-relationship models represents the real-life. In your experience, and for Oracle Database and applications wich p... 2010-01-04 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2314483800346542969 Hi Tom, We have an in house application which is built on (the 'classic') NAME-VALUE pair architecture. The core tables use basically 2 columns (i.e. a parameter/code/category/etc NAME and another column for the parameter/code/category/etc. VALUE... 2010-02-01 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2232024500346308287 Tom -- I am on 10.2.0.4 using RMAN + RMAN catalog + Data Guard. I have a weird problem and I cannot find any explanation for why it is happening. Here is my setup: I take full database backup + archived logs using RMAN + catalog on primary) and fu... 2010-01-04 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2233405900346776642 Hi Tom, somehow I just can not find the solution for it and would very much appreciate your help. The task is simple: all NULL values of a table should be updated to a certain not null value, let's say to 0,. whereas the not NULL values remain the... 2010-01-05 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2314531100346606362 Hello Tom Pleasant surprise for me. I knew I had nowhere to go but you to ask for an efficient solution (to a big mess) and luckily, you were accepting questions when I logged in to check. Thanks. I want to import about 200 tables (into a schem... 2010-02-01 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2234248600346717172 Hi Tom, Can you please advise what is the best way to accomplish the following task? We have many schemas in our database and need to grant certain privileges (like select, insert, update on tables, sequences, etc) to different objects in the s... 2010-01-05 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2231903500346043627 Hi Tom, Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production PL/SQL Release 11.1.0.6.0 - Production CORE 11.1.0.6.0 Production I have a table with 3 million rows totaling 2.2GB of relational data, 6.5TB of LOBs... 2010-01-04 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2233040800346569775 Dear Tom, I didn't find the "+ cardinality" hint in official Oracle documentation, but you use it in your answers since 9i. Is it really "undocumented" hint, and one is not supposed to use it? Thank you! 2010-01-04 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2233109200346833212 Hi Tom, Wish you a happy new year! A theoretical problem that is eating up my mind over the past few days. Your advise would be helpful. A DBA from our project informed me that a session from my PC got connected on day 1 and is running still... 2010-01-04 http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:2232072600346407634 Dear Tom, I have recently moved to US. I'm an oracle developer with work experience on Oracle 10g (sql and pl/sql). Please suggest , should I study dba also to get a job in US? I know just sql and pl/sql is not enough, what more can i do? What mo... 2010-01-04