| The test is an automated process, which means that no special technical knowledge is needed aside from understanding the software. | It requires technical EXPERTISE in SQL and Shell scripting since it is a manual process. |
| It is extremely fast and systematic, and it delivers EXCELLENT results. | In addition to being TIME-consuming, it is highly prone to errors. |
| Databases and their counts are central to ETL testing. | Manual testing focuses on the program's functionality. |
| Metadata is included and can easily be altered. | It lacks metadata, and changes require more effort. |
| It is concerned with error handling, LOG summary, and load progress, which eases the developer's and maintainer's workload. | From a maintenance perspective, it requires maximum effort. |
| It is very good at handling HISTORICAL data. | As data increases, processing time decreases. |
