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Tag Archives: low cardinality index
Oracle Bitmap Index
Common usage of Bitmap Indexes is a data warehousing environment. This implies large amounts of data, high level of ad-hoc queries but a low level of concurrent DLM transactions. Why to use? reduced response time reduced storage requirements compared to other … Continue reading
Posted in DW, Oracle DB Intro
Tagged bitmap, bitmap merge, data warehouse, datawarehouse, DW, Indexing, low cardinality index, Oracle, performance, SQL
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