View statistics in the data dictionary
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To view statistics in the data dictionary, query the appropriate data dictionary view (USER_, ALL_, or DBA_). The following list shows the DBA_ views:
DBA_TABLES
DBA_TAB_COL_STATISTICS
DBA_INDEXES
DBA_CLUSTERS
DBA_TAB_PARTITIONS
DBA_TAB_SUBPARTITIONS
DBA_IND_PARTITIONS
DBA_IND_SUBPARTITIONS
DBA_PART_COL_STATISTICS
DBA_SUBPART_COL_STATISTICS
Viewing Histograms
To view histogram information, query the appropriate data dictionary view (USER_, ALL_, or DBA_). The following list shows the DBA_ views:
DBA_HISTOGRAMS
DBA_PART_HISTOGRAMS
DBA_SUBPART_HISTOGRAMS
DBA_TAB_COL_STATISTICS
Number of Rows
View the DBA_HISTOGRAMS dictionary table for the number of buckets (in other words, the number of rows) for each column:
ENDPOINT_NUMBER
ENDPOINT_VALUE
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