| B. Theodoulidis, A. Ait-Braham and G. Karvelis, "The ORES Temporal DBMS and the ERT-SQL Query Language", Proceedings of the 5th International Conference on Database and Expert System Applications, Athens 1994. |
....application development is based on embedded and 4GL languages (usually complemented by graphical user interface libraries) and none of the temporal database systems implemented insofar ( 3] is reported to provide such tools. Some of these systems provide graphical user interfaces ( 4] 8] [19]) but these interfaces are oriented towards assisting query formulation, and not targeted for general purpose application development. TSQL2 ( 22] includes specifications for cursors, but no implementations for TSQL2 cursors has been reported insofar. Time series applications, on the other hand, ....
B. Theodoulidis, A. Ait-Braham and G. Karvelis, "The ORES Temporal DBMS and the ERT-SQL Query Language", Proceedings of the 5th International Conference on Database and Expert System Applications, Athens 1994.
....the name and the first salary of each employee whose first salary was greater than 1500. 7###1DPH###6DODU ###,QWHUYDO#### #RI#(PS : 5(#6DODU ###,QWHUYDO#### ##### 4. 2 ERT ERT SQL ERT is an extended entity relationship type model that additionally accommodates complex objects and time [TBK94, AITBRAHAM94V] The domain structure produced by the ERT contains objects (such as employee, department, etc. the attributes of these objects (such as salary, name, etc. and the relationships among objects and between these objects and their associated attributes (employee has salary, employee ....
.... 4XHU DQJXDJH DQJXDJH DVHG#2Q )RUPDOLVDWLRQ ,PSOHPHQWDWLRQ 5HIHUHQFHV ODMG 93 Object Model OQL SQL No No [GATTELL94] GATTELL96] TSQL2 BCDM TSQL2 SQL 92 Yes Yes [TSQL2] TEER TEER Yes EER GORDAS No No [ELMASRI81] ELMASRI85] ELMASRI89] ELMASRI90B] ERT ERT ERT SQL SQL 92 Yes Yes [TBK94] AITBRAHAM94V] TMQL TMAD Yes TMQL No No [KAEFER92A] MITSCHANG88] OQL T OSAM T OQL T Yes No [ALASHQUR89] SU89] SU91] SU93] TOODM TOODM TOOSQL SQL Yes No [ROSE91] ROSE93A] ROSE93B] OODAPLEX OODaplex Yes Daplex QL Yes No [WUU93] DAYAL92A] DAYAL89] TIGUKAT TIGUKAT Yes Yes Yes ....
Babis Theodoulidis, Aziz Ait-Braham and George Karvelis, "The ORES Temporal DBMS and the ERT-SQL Query Language", Proceedings of the 5th International Conference on Database and Expert Systems Applications (DEXA), D. Karagiannis (Ed.), Springer-Verlag, Athens, Greece, 1994, pp. 270-279.
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