Intro to database systems:

(22 points) Questionl. Fill the missing parts in the following sentences: data 1. A database is a veryintegrated collection of 2. External schemas provide data independence, while conceptual schemas offer data independence 3. There is exactly one schema to all users, while there are sevefor a given database schema describe how the data defined in the schema are actually stored on disk 5. - describe how users see the data. 6. 7. Interleaving actions of different user programs can lead to Any Execution of a user program is called a