netezza

Why can't .NET connect to my Netezza box via the installed {NetezzaSQL} driver? 64bit applications also cannot connect via this ODBC connection. Why would that be? I've built both user and system Netezza ODBC connections in Control Panel, and both work fine when I click "Test Connection"? I see the value in the registry, but when I traverse the registry drivers, .NET does not see "NetezzaSQL". According to Netezza, they don't have a 64 bit ODBC driver. The driver they provide should work for 32 and 64 bit applications. Could this be a permissions issue perhaps with Windows 7? static void

It appears that the lack of support for enforcing 2 basic constraints (unique and foreign key), is a reason for loss of many man-hours debugging and troubleshooting difficult problems. What starts as a trivial, easy-to-fix problem (dup rows /inconsistent primary-detail tables) goes un-noticed, grows and raises complex edge-scenarios in our application, or even in our hardware (e.g. self-join with dups can cause inflation and storage exhaustion). Netezza serves multiple purposes in our environment: production, research, qa and staging. Naturally our ETL processes can’t be mature and can’t

I have duplicate rows in my table and I want to delete duplicates in the most efficient way since the table is big. After some research, I have come up with this query: WITH TempEmp AS ( SELECT name, ROW_NUMBER() OVER(PARTITION by name, address, zipcode ORDER BY name) AS duplicateRecCount FROM mytable ) -- Now Delete Duplicate Records DELETE FROM TempEmp WHERE duplicateRecCount > 1; But it only works in SQL, not in Netezza. It would seem that it does not like the DELETE after the WITH clause? I like @erwin-brandstetter 's solution, but wanted to show a solution with the USING keyword: DELETE