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DataQualityApps (en)

Site description

For agents: DataQualityApps: data quality tools such as DedupeWizard for finding duplicates in address lists and databases, with tutorials.

deduplicationaddress list cleaningemail blacklistdata quality toolsdedupewizard

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The beginning of the file, from our validated copy saved 2026-10-23T14:49:32.886Z. Cached copy · Source on dataqualityapps.com

# DataQualityApps (en)

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> Site description

There are many ways to obtain better data. An intelligent search for duplicates and duplicate addresses is one of them. Because different spellings often make it difficult to match two data records that actually belong together.


## Site contents

[Know-how](https://www.dataqualityapps.com/know-how.html): Know-how - DataQualityApps

[DataQualityApps - Search](https://www.dataqualityapps.com/search.html): 

[Video tutorial (DedupeWizard)](https://www.dataqualityapps.com/video-dedupewizard.html): DedupeWizard: Getting Started (Video tutorial) - An introduction to the search for duplicates in address lists and databases

[Video tutorial (DataQualityTools)](https://www.dataqualityapps.com/video-dataqualitytools.html): DataQualityTools: Getting Started (Video tutorial) - An introduction to the search for duplicates in address lists and databases

[Processing a black list of people who do not want to receive emails](https://www.dataqualityapps.com/know-how/198-processing-a-black-list-of-people-who-do-not-want-to-receive-emails.html): Black lists are an important part of marketing. Maintaining them is not difficult. And with the help of DataQualityTools, black lists can be processed without any problems.

[Enriching addresses: supplementing data from a second source](https://www.dataqualityapps.com/know-how/197-enriching-addresses-supplementing-data-from-a-second-source.html): In order to enrich addresses, i.e. to transfer data from one database to another, specifically to the data record to which this information belongs, you need a way of doing this that is as automated as possible.

[Enriching data: Adding information from a second table](https://www.dataqualityapps.com/know-how/196-enriching-data-adding-information-from-a-second-table.html): In order to enrich data, i.e. to transfer information from one database to another, specifically to the data record to which this information belongs, you need a way of doing this that is as automated as possible.

[Merging tables: Combining two or more tables](https://www.dataqualityapps.com/know-how/195-merging-tables-combining-two-or-more-tables.html): It is not uncommon to have data from different sources that needs to be processed together. The obvious solution is to combine this data, or rather the tables in which this data is stored, into a single table.

[Determine differences between two tables](https://www.dataqualityapps.com/know-how/194-determine-differences-between-two-tables.html): Suppose you want to find out which records have been added to a table compared to an older version of the same table. Or, more generally, which records from one table are contained in a second table and which are not.

[Starting Data Cleanup via the Command Line](https://www.dataqualityapps.com/know-how/193-starting-data-cleanup-via-the-command-line.html): T
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