Difference between revisions of "SYSIOSTATS"

From Lianjapedia
Jump to: navigation, search
Line 8: Line 8:
 
System Tables are system defined read-only tables. You can query these tables using the SELECT statement.
 
System Tables are system defined read-only tables. You can query these tables using the SELECT statement.
  
{| class="wikitable" width=100%
+
{| class="wikitable" width="100%"
 
!Column||Data Type||Width||Description
 
!Column||Data Type||Width||Description
 
|-
 
|-

Revision as of 10:43, 31 January 2013

Purpose

Facility for monitoring table and index file I/O operations

See Also

DATA TYPES, SELECT, SYSTEM TABLES

Description

System Tables are system defined read-only tables. You can query these tables using the SELECT statement.

Column Data Type Width Description
TABLE_NAME C 30 Table name
READS N 10 # of row reads for table
UPDATES N 10 # of row updates for table
DELETES N 10 # of row deletes for table
RECALLS N 10 # of row recalls for table
INSERTS N 10 # of row inserts for table
DCACHEREADS N 10 # of cache reads for table
DCACHEWRITES N 10 # of cache writes for table
INDEXREADS N 10 # of index reads for table
INDEXWRITES N 10 # of index writes for table
ICACHEREADS N 10 # of index cache reads for table
ICACHEWRITES N 10 # of index cache writes for table

Example

SELECT icachereads FROM sysiostats

Products

Lianja, Lianja Server