Accession Number:

ADA172052

Title:

QUEL as a Data Type,

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY ELECTRONICS RESEARCH LAB

Personal Author(s):

• Stonebraker,Michael
• Anderson,Erika
• Hanson,Eric
• Rubenstein,Brad

Report Date:

1983-12-12

Pagination or Media Count:

25.0

Abstract:

This paper explores the use of commands in a query language as an abstract data type ADT in data management systems. Basically, an ADT facility allows new data types, such as polygons, lines, money, time, arrays, of floating point numbers, bit vectors, etc. to supplement the built-in data types in a data base system. In this paper we demonstrate the power of adding a data type corresponding to commands in a query language. We also propose three extensions to the query language QUEL to enhance its power in this augmented environment. Author

Descriptors:

• *COMPUTER PROGRAMMING
• *INSTRUCTIONS
• DATA BASES
• DATA MANAGEMENT
• ARRAYS
• TIME
• INTERROGATION
• FLOATING POINT OPERATION
• COMPUTER OPERATORS
• MONEY
• POLYGONS
• LINES(GEOMETRY)

Subject Categories:

• Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE