Modular ETL Architecture Design in SSIS

Overview of ETL Architecture In a data warehouse, one of the main parts of the entire system is the ETL process. ETL is the system that reads data from the source system, transforms the data according to the business logic, and finally loads it into the warehouse. While fetching data from the sources can seemContinue reading “Modular ETL Architecture Design in SSIS”

A User-Defined Function returns more rows

Problem Recently, while working with one of my clients, I came across a script in which I had to introduce a scalar User-Defined Function in the SELECT statement. The SELECT used to return around 750K records. However, after introducing the UDF, the row count significantly increased to 826K. There were no other changes made toContinue reading “A User-Defined Function returns more rows”