Difference between revisions of "SYSIOSTATS"
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[[Category:SQL]] | [[Category:SQL]] | ||
[[Category:System Tables]] | [[Category:System Tables]] | ||
Revision as of 16:30, 9 December 2009
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
EXEC SQL SELECT icachereads FROM sysiostats;
Products
Recital, Recital Server
