joins-set-operations/ │ ├── data/ │ ├── employees.sql │ ├── departments.sql │ └── salaries.sql │ ├── solutions/ │ ├── joins_queries.sql │ ├── set_operations.sql │ ├── README.md └── joins ...

1.select name from computer union select name from electrical 2.select name from computer union all select name from electrical 3.select name from computer intersect select name from electrical ...

Abstract: In today's complex world requires state-of-the-art data analysis over massive data sets. In data warehousing and OLAP applications, scalar-level predicates of set in SQL become highly ...