'Extract, Transform and Load': Data load processing, normally in the context of data warehouse systems.

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Are regular VACUUM ANALYZE stil recommended under 9.1?

I'm using PostgreSQL 9.1 on Ubuntu. Are scheduled VACUUM ANALYZE still recommended, or is autovacuum enough to take care of all needs? If the answer is "it depends", then: I have a largish database ...
4
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2answers
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What is the best practice for mapping from natural keys to integer-based keys? (ETL)

This question originates more from an "enterprise architecture" point of view. (Reason being, our company is just starting to get into data management, and actually having DBA's -- I know, horrific ...
14
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3answers
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How do I run a large script with many inserts without running out of memory?

Question: I have a script with around 45 thousand insert from select statements. When I try and run it, I get an error message stating that I have run out of memory. How can I get this script to run? ...
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2answers
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ETL: extracting from 200 tables - SSIS data flow or custom T-SQL?

Based on my analysis, a complete dimensional model for our data warehouse will require extraction from over 200 source tables. Some of these tables will be extracted as part of an incremental load and ...
2
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1answer
852 views

What are the best practices for ETL of data from one OLTP system to another?

First off, I want to post that I am a developer and not a DBA, so I am trying to approach this from the standpoint of what is the best thing to do, rather than just assuming I can do everything ...
4
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3answers
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How can I make my SSIS process consume more resources and run faster?

I have a daily ETL process in SSIS that builds my warehouse so we can provide day-over-day reports. I have two servers - one for SSIS and the other for the SQL Server Database. The SSIS server ...
3
votes
0answers
505 views

SSIS Recordset Destination error

I have an SSIS package targeted at SQL Server 2012. I have it deployed into the Stored Packages in Integration Services and then have a SQL Server Agent job which executes it. The first part of the ...
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1answer
507 views

What are the best practices for ETL of data from one OLTP system to another, Part 2?

Ok, I originally started a question a ways back called "What are the best practices for ETL of data from one OLTP system to another?". And as you can probably tell from most of my questions so far, ...