Table of Contents
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Data item
Lock Type
Version: 11.0 and later
Locks Being Blocked
Count
Version: 11.0 and later
Locks Granted
Immediately
Version: 11.5 and later
Locks Granted After Wait
Version: 11.5 and later
Locks Not Granted
Version: 11.5 and later
Log Contention Percent
Version: 11.0 and later
Logical Page Reads
Version: 11.0 and later
Login Name
Version: 11.0 and later
User's Guide
Description
Adaptive Server protects tables or data pages currently used by active transactions by
locking them. Adaptive Server employs the following lock types:
• 1 – exclusive table lock.
• 2 – shared tablelock.
• 3 – exclusive intent lock.
• 4 – shared intent lock.
• 5 – exclusive page lock.
• 6 – shared page lock.
• 7 – update page lock.
• 8 – exclusive row lock.
• 9 – shared row lock.
• 10 – update row lock.
Type: Key
Number of locks being blocked by this process that holds this "held_and_blocking"
lock.
Type: Result
Number of locks that were granted immediately, without having to wait for another
lock to be released.
Type: Result
Number of locks that were granted after waiting for another lock to be released.
Type: Result
Number of locks that were requested but not granted.
Type: Result
The percentage of times, of the total times when a user log cache was flushed into the
transaction log, that it had to wait for the log semphore.
A high percentage may indicate that the user log cache size should be increased.
Type: Result
Number of data page reads per unit of time, whether satisfied from cache or from a
database device.
Type: Result
Login name associated with Adaptive Server processes.
Type: Result
APPENDIX A
Data Items
113
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