Hi all,
I´m looking after unused indexes in databases searching for optselectcount and usedcount from monopenobjectactitivy. While doing the delta between the first snapshot and the last one I have several indexes that have null or 0 counts in both fields but shows increments in its logical reads.
Example:
| SampleTime | ObjName | IndID | LogicalReads | OptSelectCount | UsedCount | Operations | LastOptSelectDate | LastUsedDate |
| 2014-06-16 00:00:01.113 | tau_tarifa | - | 359.297.424 | 188 | - | 1.571.563 | 2014-06-02 16:01:22.253 | NULL |
| 2014-06-16 00:00:01.113 | tau_tarifa | 2 | 2.002.124.173 | - | - | - | NULL | NULL |
| 2014-06-16 19:00:02.033 | tau_tarifa | - | 386.775.211 | 188 | - | 1.595.859 | 2014-06-02 16:01:22.253 | NULL |
| 2014-06-16 19:00:02.033 | tau_tarifa | 2 | 2.046.483.856 | - | - | - | NULL | NULL |
If its not used why this index has reads? Any ideas about?
Another point, its if I look after indexes / tables not capture by monopenobjectactivity? Not captured its equal to not used?, I collecting it since a long period so then I compare all the objects there with each database sysobjects in order to get not used objects output.
Finally to get tables not used, I´m looking after Operations at IndexID 0 equals to 0 or null.
I´m using Adaptive Server Enterprise/15.5/EBF 20636 SMP ESD#5.2/P/x86_64/Enterprise Linux/asear155/2602/64-bit/FBO/Sun Dec 9 15:11:04 2012
Thanks in advanced.
Javier Barthe.