Adaptive Server 15.7 SP100 includes changes to the set command.
set Option | Description |
---|---|
ins_by_bulk | The set command enables the ins_by_bulk
parameter for the session, which improves performance by directly inserting
data rows into newly allocated data pages for tables. The syntax
is:
set ins_by_bulk {on | off} |
join_bloom_filter | The join_bloom_filter parameter enables or disables the
use of bloom filters for query plan optimization. The syntax
is:
set join_bloom_filter {on | off} |
statistics parallel_plan_detail_html | The parallel_plan_detail_html parameter generates a
graphical query plan in HTML format containing information about details per
thread and plan fragments for query plans that are executed in parallel
using several worked threads. Use this option to diagnose the behavior of
specific threads and plan fragments in comparison with the global execution
of the query. The syntax
is:
set statistics parallel_ plan_detail_html {on | off} |
statistics plan_detail_html | The plan_detail_html parameter generates a graphical query
plan in HTML format containing information details of plan operators, such
as the name, different timestamps captured during the execution, number of
rows affected, number of estimated rows, elapsed time, and so on. The syntax
is:
set statistics plan_detail_html {on | off} |
statistics plan_directory_html | The plan_directory_html parameter specifies the directory
path name into which to write the HTML query plans. The file name is
identified by a combination of user name, spid, and timestamp. The syntax
is:
set statistics plan_directory_html {dirName | on | off} When set to off, the dumping of the HTML data to an external file is stopped. When set to on, the dumping of HTML data to an external file in a directory previously indicated is resumed. No output is generated if a directory name was not previously provided. |
statistics plan_html | The plan_html parameter generates a graphical query plan
in HTML format containing information about the number of rows and number of
threads per operator. The syntax
is:
set statistics plan_html {on | off} |
statistics timing_html | The timing_html parameter generates a graphical query plan
in HTML format containing execution statistics related to the timing spent
in each operator per execution phase. CPU usage and Wait distribution is
generated for queries executed in parallel. The syntax
is:
set statistics timing_html {on | off} |