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Issue No. 03 - May-June (1997 vol. 9)
ISSN: 1041-4347
pp: 480-499
<p><b>Abstract</b>—IXSQL, an extension to SQL, is proposed for the management of interval data. IXSQL is syntactically and semantically upwards consistent with SQL2. Its specification has been based both on theoretical results and actual user requirements for the management of temporal data, a special case of interval data. Design decisions and implementation issues are also discussed.</p>
Data model, interval data, query language, spatial data, temporal data.

N. A. Lorentzos and Y. G. Mitsopoulos, "SQL Extension for Interval Data," in IEEE Transactions on Knowledge & Data Engineering, vol. 9, no. , pp. 480-499, 1997.
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