- Query Edition
Retrieve the name, location and room rate for hotels with a room rate equals to $200
[Name Location Price] of (AND hotel (FILLS Price 200))
- DL query ==> Mappings
- Access to data repositories
- Mono-repository mappings ==> queries in Local Query Language (LQL)
- Execution of LQL queries
- Access data using wrappers
- Applying transformer functions
- Obtaining final answer using an auxiliar database
- Presentation of answer to the user
