Data Profiling is being supported by SQL Server 2008 for SQL Server data. You use the Data Profiling task to configure the profiles that you want to compute and then run the SSIS package that contains the task. The task creates results in XML format, which you can then review in the Data Profile Viewer.
Data profiling can help you to:
• Analyze and understand your source data better and more efficiently.
• Identify data quality problems before they are moved to the data warehouse
Information that is gathered during profiling include:
• The percentage of null values.
• The distribution of values in the column.
• Column statistics for numeric columns.
• Regular expressions that match string columns.
• Validity of a relationship between columns.
• Candidate key columns.
• Functional dependencies between columns. For example, the strength of the dependency between the state and zip code fields.
• The inclusion of the set of values in one column in the set of values in another column.
How to Open Data Profile Viewer
To run the Data Profile Viewer, on the Start menu, click in the run box, type dataprofileviewer and then press ENTER.
How to Use Data Profile Viewer with example
Note: Data profiling works only with data that is stored in SQL Server 2000, SQL Server 2005, or SQL Server 2008.