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Jordan Chernev

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Name:
Jordan Chernev
Status Level:
Rookie Rookie (161 points)
Member Since:
Jun 24, 2011
Groups:
TwinFin Talk   Retail/CPG Focus   Enzee Universe

Recent Activity

Jordan Chernev replied to CPU/IO usage in Twinfin 12

"Probably at the switch level for those ports that are connected to the rest of your servers/network.   I'm not sure about the internal fabr"

in Users 7 replies
8 hours ago
Jordan Chernev replied to ODBC

"I'm playing with a Twin-Fin 3 (1000-3) and I can write out to an external table pointing to /dev/null on the host at a max of 180 MB/sec.  "

in Enzee Universe 7 replies
5 days ago
Jordan Chernev replied to Concatenating multiples values in rows to a single column value in Netezza SQL

"Is that to be expected?"

in TwinFin Talk 13 replies
5 days ago
Jordan Chernev replied to Start learning Netezza

"Hey venky,   I'd start with the Netezza documentation. I've found that it's better to start with the "System Administrators Guide" first as"

in Users 6 replies
5 days ago
Jordan Chernev replied to CPU/IO usage in Twinfin 12

"The query execution plans provide this information to an extent. I'm not sure if you can monitor that overall. Maybe Shawn would know more.."

in Users 7 replies
5 days ago
Jordan Chernev replied to Swap partition event alert setup

"I don't know how to do this but out of curiosity here... are you trying to monitor for large queries that are writing to the temp space or?"

in Users 4 replies
5 days ago
Jordan Chernev replied to error: Got exception: unexpected transaction command in exec_stmt_execsql()

"One thing that you could do is tail the log via   tail -f /nz/kit/log/postgres/pg.log while the sproc is running so you can see exactly whe"

in TwinFin Talk 6 replies
5 days ago
Jordan Chernev replied to Encoding?

"Thanks Shawn!"

in TwinFin Talk 2 replies
6 days ago
Jordan Chernev replied to Looping in SQL

"Nick, I was referring to the bridge table that needs to be built out "manually" by exploding the tree.   If you're in a mixed database envi"

in TwinFin Talk 10 replies
6 days ago
Jordan Chernev replied to error: Got exception: unexpected transaction command in exec_stmt_execsql()

"Do you have an actual SQL statement we can look at?"

in TwinFin Talk 6 replies
6 days ago
Jordan Chernev replied to Concatenating multiples values in rows to a single column value in Netezza SQL

"Does the following work?     ------------------------------------------------------------------------------ -- c) 2010 Netezza Corporation."

in TwinFin Talk 13 replies
6 days ago
Jordan Chernev started the discussion Encoding?

"Is there a way to check the encoding of Netezza or does it default to Latin-1?"

in TwinFin Talk 0 bookmarks
6 days ago
Jordan Chernev replied to Looping in SQL

"Isn't that one of the most common problems (hierarchy trees) that Kimball describes in his Data Warehouse Desing book? It's worthwhile menti"

in TwinFin Talk 10 replies
1 week ago
Jordan Chernev replied to Processing large set of records

"Harish, I would pass my email to you but this way noone else can help you out... it's probably best if you attach the requested files to you"

in Enzee Universe 15 replies
1 week ago
Jordan Chernev replied to ODBC

"Have you consired using R for your problem? It does great with matrices and all kinds of statistical computations.   I believe IBM Netezza"

in Enzee Universe 7 replies
1 week ago
Jordan Chernev replied to Strange trend in performance

"This thread should be best-of'd We covered a lot of troubleshooting aspects in here."

in Enzee Universe 16 replies
1 week ago
Jordan Chernev replied to Processing large set of records

"This is the EXPLAIN output of the query correct?   Is it possible to get the actual query and the table DDLs including any distributions/or"

in Enzee Universe 15 replies
1 week ago
Jordan Chernev replied to Strange trend in performance

"The query history wouldn't contain that information. The best place to check is the execution plan directory under /nz/kit/planshist (I thin"

in Enzee Universe 16 replies
1 week ago
Jordan Chernev replied to Processing large set of records

"Harish,   Can you please post any table DDLs, SQL and query execution plans to your problem so we can have a look and provide helpful sugg"

in Enzee Universe 15 replies
1 week ago
Jordan Chernev replied to Strange trend in performance

"I wonder if you're running into disk-hash joins (DHJ) in your process. If the data you're working on can't be processed fully in memory, it"

in Enzee Universe 16 replies
1 week ago
Jordan Chernev replied to Strange trend in performance

"+1 to Nick's comment on the distribution on the join keys.   Note, you haven't posted the DDL for Table B, I'm assuming you have the same d"

in Enzee Universe 16 replies
1 week ago
Jordan Chernev replied to Strange trend in performance

"Can you please post your table DDL and sample SQL you're running so we can take a look?"

in Enzee Universe 16 replies
1 week ago
Jordan Chernev replied to Connect From Netezza to MS SQL Server and DB2

"Also, the way we tackled Netezza -> SQL Server communication in our environment was to build two functions.   One of functions is using OPE"

in TwinFin Talk 8 replies
1 week ago
Jordan Chernev replied to Connect From Netezza to MS SQL Server and DB2

"Hey Ramasamy,   You'll probably have to install the OLEDB driver on your SQL Server Instance and then create the linked server like this:  "

in TwinFin Talk 8 replies
1 week ago
Jordan Chernev replied to Atomic operation

"Would this be of help here?   CREATE OR REPLACE PROCEDURE TRUNCATE_TABLE(CHARACTER VARYING(ANY)) RETURNS BOOLEAN LANGUAGE NZPLSQL AS BEGIN_"

in TwinFin Talk 7 replies
1 week ago

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