SQL Clone
SQLServerCentral is supported by Redgate
Log in  ::  Register  ::  Not logged in

Get your favorite SSC scripts directly in SSMS with the free SQL Scripts addin. Search for scripts directly from SSMS, and instantly access any saved scripts in your SSC briefcase from the favorites tab.
Download now (direct download link)

Compare Parallel Data Streams

By nhamilton,

This a script to compare two parallel data streams, in my case production and QA.  Two extracts were created and a mapping table was created as a look-up between old and new recordids.  A final table TestResults was created to hold the results of the comparison.  The comparison table names and join syntax are controlled by variables. 
The script uses syscolumns to find the common column names and compares each row in the two tables, column by column and inserts any differences in to the results table.
The comparisons support nulls and casts any column with the word 'date' in the name as a datetime before conmparing.

Total article views: 129 | Views in the last 30 days: 1
Related Articles

Data Comparison

Best approach for data comparison when column name and data type do not match


Row-by-Row comparison

Comparison of data in two tables


Dynamic SQL in creating columns and summary

Dynamci SQL in creating columns and summary result


A Comparison of JDBC Drivers for MySQL

A brief comparison of three different JDBC Drivers built for connecting with MySQL


PowerShell – Service Comparison GUI Tool

Service Comparison GUI Tool  does comparison of all the services of any given two servers. The outpu...