Difference between revisions of "SYSIOSTATS"
From Lianjapedia
Yvonne.milne (Talk | contribs) m (1 revision: SQL) |
m (Text replace - "Recital" to "Lianja") |
||
Line 48: | Line 48: | ||
==Products== | ==Products== | ||
− | + | Lianja, Lianja Server | |
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:SQL]] | [[Category:SQL]] | ||
[[Category:System Tables]] | [[Category:System Tables]] |
Revision as of 01:26, 9 December 2012
Contents
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