Difference between revisions of "SYSIOSTATS"

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Line 43: Line 43:
 
==Example==
 
==Example==
 
<code lang="recital">
 
<code lang="recital">
EXEC SQL
+
SELECT icachereads FROM sysiostats
SELECT icachereads
+
FROM sysiostats;
+
 
</code>
 
</code>
  

Latest revision as of 16:49, 22 December 2009

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

Recital, Recital Server