1		16
	2
	3
		4
								17
5/6/15
										7						18
		8
		9
	10
			11
											12/13
		14

Across

1. The level of accuracy, completeness, and consistency of data.

2. Data structures that improve the speed of data retrieval operations in a relational database.

3. A device that captures and reads barcodes to retrieve encoded information.

4. A system that collects, processes, stores, analyzes, and disseminates information for a specific purpose.

5. A type of database that organizes data into tables with rows and columns, and establishes relationships between tables.

6. A type of database that stores and provides access to data points that are related to one another.

7. The property of a transaction to be an indivisible operation, either all or none of its changes are applied.

8. A series of steps performed to confirm the correctness and validity of data.

9. The action of automatically deleting all dependent records in child tables when a record in the parent table is deleted.

10. A unique identifier for each record in a relational database table.

11. Techniques and mechanisms used to manage the simultaneous execution of transactions without interference or inconsistency.

12. The storage of the same data in multiple places within a database, which can lead to inconsistency and inefficiency.

13. When the same data is stored in multiple locations, leading to inconsistency and inefficiency in database management.

14. RThe integrity constraints that ensure the consistency between related tables by enforcing rules on foreign key values.

Down

15. A mechanism used in the recovery process of a database to bring it to a consistent state after a crash.

16. A file that records all the transactions and activities in a database system.

17. A type of data validation where the value is checked to make sure it falls within a specified range.

18. A property that determines how concurrent transactions interact with each other and the level of data visibility.

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