Minor updates to sqlexplain and docs

Author: bengsig

docs/refman/sqlexplain.html

@@ -31,7 +31,8 @@ Provide the format argument; the default is 'last, all, allstats'.
 .P
 .B --child-no=child#
 .RS 4
-When using the display_cursor function, provide this cursor_child_no, the default is 0.
+When using the display_cursor function, provide this cursor_child_no,
+the default is null implying all child cursors will be included.
 .RE
 .P
 .B --sessionid=sid
@@ -64,4 +65,4 @@ Copyright \(co 2024 Oracle Corporation
 Licensed under the Universal Permissive License v 1.0
 as shown at https://oss.oracle.com/licenses/upl
 .SH "SEE ALSO"
-rwloadsim(1rwl), sqlreport(2rwl), sqlmonitor(2rwl) sqlmonitorawr(2rwl), utilities(2rwl)
+rwloadsim(1rwl), sqlreport(2rwl), sqlmonitor(2rwl), sqlmonitorawr(2rwl), utilities(2rwl)

docs/refman/sqlmonitor.html

@@ -58,4 +58,4 @@ Copyright \(co 2023 Oracle Corporation
 Licensed under the Universal Permissive License v 1.0
 as shown at https://oss.oracle.com/licenses/upl
 .SH "SEE ALSO"
-rwloadsim(1rwl), sqlmonitor(2rwl) sqlmonitorawr(2rwl), sqlexplain(2rwl), utilities(2rwl)
+rwloadsim(1rwl), sqlmonitor(2rwl), sqlmonitorawr(2rwl), sqlexplain(2rwl), utilities(2rwl)

docs/refman/sqlreport.html

@@ -6,6 +6,7 @@
 #
 # History
 #
+# bengsig  10-dec-2024 - default null for child_no
 # bengsig   5-dec-2024 - Creation
 #
 # usage:
@@ -23,13 +24,13 @@ $endif
 $longoption:file-count=1
 
 integer sessionid, instance;
-integer awr := 0, child_no := 0;
+integer awr := 0, child_no := null;
 string format := "last, all, allstats";
 
 	              $userhelp:"Create a sql explain plan by calling dbms_xplan.display_cursor"
 	              $userhelp:"-l usr/pwd@con           : required option to give database logon"
 	              $userhelp:"sqlid                    : if provided, use that sqlid"
-           $useroption:child-no:"--child-no=child#        : provide cursor_child_no, default 0"
+           $useroption:child-no:"--child-no=child#        : provide cursor_child_no, default null"
              $useroption:format:"--format='format text'   : provide format, default 'last, all, allstats'"
           $useroption:sessionid:"--sesssionid=sid         : query v$session for the sqlid"
            $useroption:instance:"--instance=inst#         : query gv$session"