statistics for checking imported data?

Posted by user1936 on Programmers See other posts from Programmers or by user1936
Published on 2012-09-12T13:07:38Z Indexed on 2012/09/12 15:49 UTC
Read the original article Hit count: 259

Filed under:

migration

|

statistics

I'm working on a data migration of several hundred nodes from a Drupal 6 to a Drupal 7 site. I've got the data exported to the new site and I want to check it. Harkening back to my statistics classes, I recall that there is some way to figure out a random number of nodes to check to give me some percentage of confidence that the whole process was correct. Can anyone enlighten me as to this practical application of statistics? For any given number of units, how big must the sample be to have a given confidence interval?

© Programmers or respective owner

Related posts about migration

Where do I find scripts generated by SharePoint MCMS Migration Profiles

as seen on Server Fault - Search for 'Server Fault'
I am attempting to migrate data from an Microsoft Content Management Server (MCMS) 2002 instance into a new Microsoft Office Sharepoint Server (MOSS) 2007 installation using the Manage Microsoft Content Management Server Migration Profiles tool in the Operations space of MOSS Central Administration… >>> More
SQL SERVER – Microsoft SQL Server Migration Assistant V6.0 Released

as seen on SQL Authority - Search for 'SQL Authority'
Every company makes a different decision about the database when they start, but as they move forward they mature and make the decision which is based on their experience and best interest of the organization. Similarly, quite a many organizations make different decisions on database, like Sybase… >>> More
Core Data migration problem: "Persistent store migration failed, missing source managed object model

as seen on Stack Overflow - Search for 'Stack Overflow'
The Background A Cocoa Non Document Core Data project with two Managed Object Models. Model 1 stays the same. Model 2 has changed, so I want to migrate the store. I've created a new version by Design Data Model Add Model Version in Xcode. The difference between versions is a single relationship… >>> More
The Business case for Big Data

as seen on Oracle Blogs - Search for 'Oracle Blogs'
The Business Case for Big Data Part 1 What's the Big Deal Okay, so a new buzz word is emerging. It's gone beyond just a buzzword now, and I think it is going to change the landscape of retail, financial services, healthcare....everything. Let me spend a moment to talk about what i'm going to talk… >>> More
Core Data migration failing with error: Failed to save new store after first pass of migration

as seen on Stack Overflow - Search for 'Stack Overflow'
In the past I had already implemented successfully automatic migration from version 1 of my data model to version 2. Now, using SDK 3.1.3, migrating from version 2 to version 3 fails with the following error: Unresolved error Error Domain=NSCocoaErrorDomain Code=134110 UserInfo=0x5363360 "Operation… >>> More

Related posts about statistics

SQL SERVER – When are Statistics Updated – What triggers Statistics to Update

as seen on SQL Authority - Search for 'SQL Authority'
If you are an SQL Server Consultant/Trainer involved with Performance Tuning and Query Optimization, I am sure you have faced the following questions many times. When is statistics updated? What is the interval of Statistics update? What is the algorithm behind update statistics? These are the puzzling… >>> More
SQL SERVER When are Statistics Updated What triggers Statistics to Update

as seen on Dot net Slackers - Search for 'Dot net Slackers'
If you are an SQL Server Consultant/Trainer involved with Performance Tuning and Query Optimization, I am sure you have faced the following questions many times.When is statistics updated? What is the interval of Statistics update? What is the algorithm behind update statistics? These are the puzzling… >>> More
New Whitepaper: Best Practices for Gathering EBS Database Statistics

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Most Oracle Applications DBAs and E-Business Suite users understand the importance of accurate database statistics. Missing, stale or skewed statistics can adversely affect performance. Oracle E-Business Suite statistics should only be gathered using FND_STATS or the Gather Statistics… >>> More
Incremental Statistics Maintenance – what statistics will be gathered after DML occurs on the table?

as seen on Oracle Blogs - Search for 'Oracle Blogs'
Incremental statistics maintenance was introduced in Oracle Database 11g to improve the performance of gathering statistics on large partitioned table. When incremental statistics maintenance is enabled for a partitioned table, oracle accurately generated global level statistics by aggregating… >>> More
Lies, damned lies, and statistics Part 2

as seen on Oracle Blogs - Search for 'Oracle Blogs'
There was huge interest in our OOW session last year on Managing Optimizer Statistics. It seems statistics and the maintenance of them continues to baffle people. In order to help dispel the mysteries surround statistics management we have created a two part white paper series on Optimizer statistics… >>> More