Measures reported by TibScanTest
Full table scans on a database instance can degrade the performance of the database. This test monitors the extent of full table scans happening on the database.
Outputs of the test : One set of results for each target database server being monitored.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Full_table_scans |
Indicates the number of full table scans that happened on the database instance during the last measurement period. |
Number |
This type of scan reads all rows from a table and filters out those that do not meet the selection criteria. Full table scans may happen due to several reasons. For instance, the indexes of a table may not be used properly in queries. By tuning the queries, the full table scans can be reduced and the database performance significantly improved. |
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