Abstract
Transport information systems store and manage an increasing amount of data. For this purpose, database systems are used, which can significantly increase the execution time of data selection queries by creating index structures. However, in cases of frequent additions, changes, or deletions of data, the performance slows down due to the editing of the created corresponding indexes. This paper deals with the effect of the number of indexes on the performance of insert, update, and delete operations that have been observed in our practical experiments in Oracle.
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