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SQLDiffer - the data differencing engine

Download SQLDiffer

SQLDiffer is very simple in concept. It is a tool for comparing two different sets of data and helping you find the differences. It can be used to compare the results of two different database queries either from the same or different databases.

SQLDiffer retrieves the two sets of data from the database and visually displays the datasets. The differences and similarites between the datasets are highlighted allowing fast comparison between the data. SQLDiffer also allows maching items to be hidden to easily navigate through dataset differences.

The latest version of SQLDiffer can be downloaded for free from the downloads page. This is the completely functional version that will nag you on start up about registering (in the manner of Winzip).

A screen shot of a comparison between two datasets is show below:


Click for larger image

Major features

  • Side by side visual differencing
  • Grouping and totalling for easy reconciliation
  • Easy and powerful query builder
  • Wide range of databases supported
  • Ability to save and rerun comparison later
  • Very fast download and install (~2.5Mb)

A few examples of SQLDiffer usage

Albert is a sales person and needs to keep track of whether there are any differences between the contact list on his laptop and the headquarters database for his sales region.
Alistair is trying to reconcile the year-end accounts and wants a flexible way of chasing down where those discrepancies are coming from.
Roger is a database administrator and wants to know what orders have been placed since last nights back-up.
Alice is in software quality assurance and wants to be assured that the new version of the software affected the database the same way as the previous version of the software.

Of course, many of these questions could be answered by appropriately designed database and a standard report. But if you need to compare two sets of data NOW and your current database design is not sympathetic to your needs then maybe SQLDiffer is what you need. The latest version can be downloaded for free from the downloads page and can be up and running in ten minutes even over a dial-up internet connection.

Feature List

  • Easy to Use: This has a very simple user interface for the casual user that gradually increases in power as the user continues to use the software.
  • Visual Highlighting: From the screen shot below, you can see that the grids are color coded for easy identification of differences.You can show all the rows in each grid or only the rows that are different.
  • Synchronized scrolling: As you use the cursor keys to move around in one of the grids, SQLDiffer will try and keep the relevant field visible in the other grid.
  • Grouping of result: Occasionally it is useful to cluster the results in SQLDiffer for easier comparisons. For instance, when looking at two sets of orders, you might like to group them by customer for easier assimilation.
  • Comprehensive data access: SQLDiffer can compare data from Oracle, SQL Server, MS Access, IBM DB2 and in fact any database that supports an ODBC interface.
  • Easy to Install: One simple executable file. No dynamic libraries, no registry settings, no entries in the systems directory. If you are on a network, this program has been designed to make the network administrators job as easy as possible.
  • High Performance: For any techos reading this, the comparison engine is a natively compiled engine tuned to perform.

Query Builder


Click for larger image
The query builder is designed to provide a drag and drop experience for users who are not necessarily familiar with the Structured Query Language.
The easy drag and drop interface will allow you to explorer your database with ease.

Download SQLDiffer

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