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27.4.3.29 The schema_table_statistics and x$schema_table_statistics Views
These views summarize table statistics. By default, rows are sorted by descending total wait time (tables with most contention first).
These views user a helper view,
x$ps_schema_table_statistics_io
.
The schema_table_statistics
and
x$schema_table_statistics
views
have these columns:
table_schema
The schema that contains the table.
table_name
The table name.
total_latency
The total wait time of timed I/O events for the table.
rows_fetched
The total number of rows read from the table.
fetch_latency
The total wait time of timed read I/O events for the table.
rows_inserted
The total number of rows inserted into the table.
insert_latency
The total wait time of timed insert I/O events for the table.
rows_updated
The total number of rows updated in the table.
update_latency
The total wait time of timed update I/O events for the table.
rows_deleted
The total number of rows deleted from the table.
delete_latency
The total wait time of timed delete I/O events for the table.
io_read_requests
The total number of read requests for the table.
io_read
The total number of bytes read from the table.
io_read_latency
The total wait time of reads from the table.
io_write_requests
The total number of write requests for the table.
io_write
The total number of bytes written to the table.
io_write_latency
The total wait time of writes to the table.
io_misc_requests
The total number of miscellaneous I/O requests for the table.
io_misc_latency
The total wait time of miscellaneous I/O requests for the table.
Document created the 26/06/2006, last modified the 26/10/2018
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