My main question is how to identify cause of sql?

alter session set timed_statistics=true
alter session set max_dump_file_size=unlimited

alter session set tracefile_identifier='MYSESSION_TODAY'


alter session set events '10046 trace name context forever, level 12'

following I post sql trace file.

WAIT #1032161120: nam='SQL*Net message to client' ela= 1 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635086250639
WAIT #1032161120: nam='SQL*Net message from client' ela= 11907 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635086263237
CLOSE #1032161120:c=0,e=7,dep=0,type=1,tim=1635086263311
=====================
PARSING IN CURSOR #1032068312 len=61 dep=0 uid=91 oct=47 lid=91 tim=1635086263362 hv=356401299 ad='6eb52ee10' sqlid='9m7787camwh4m'
begin :id := sys.dbms_transaction.local_transaction_id; end;
END OF STMT
PARSE #1032068312:c=0,e=24,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=0,tim=1635086263361
BINDS #1032068312:
Bind#0
oacdty=01 mxl=4000(4000) mxlc=00 mal=00 scl=00 pre=00
oacflg=01 fl2=1000000 frm=01 csi=178 siz=4000 off=0
kxsbbbfp=3d852a30 bln=4000 avl=00 flg=05
WAIT #1032068312: nam='SQL*Net message to client' ela= 2 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635086263502
EXEC #1032068312:c=0,e=117,p=0,cr=0,cu=0,mis=0,r=1,dep=0,og=1,plh=0,tim=1635086263520
WAIT #1032068312: nam='SQL*Net message from client' ela= 981 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635086264534
CLOSE #1032068312:c=0,e=11,dep=0,type=3,tim=1635086264569
=====================
PARSING IN CURSOR #1032164816 len=73 dep=0 uid=91 oct=47 lid=91 tim=1635086264610 hv=2674323898 ad='6afc7bfd8' sqlid='bydf32qgqdwdu'
begin
sys.dbms_output.get_line(line => :line, status => :status);
end;
END OF STMT
PARSE #1032164816:c=0,e=19,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=0,tim=1635086264610
BINDS #1032164816:
Bind#0
oacdty=01 mxl=4000(4000) mxlc=00 mal=00 scl=00 pre=00
oacflg=01 fl2=1000000 frm=01 csi=178 siz=4000 off=0
kxsbbbfp=3d852a30 bln=4000 avl=00 flg=05
Bind#1
oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00
oacflg=01 fl2=1000000 frm=00 csi=00 siz=24 off=0
kxsbbbfp=3d853dd0 bln=22 avl=00 flg=05
WAIT #1032164816: nam='SQL*Net message to client' ela= 1 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635086264750
EXEC #1032164816:c=0,e=109,p=0,cr=0,cu=0,mis=0,r=1,dep=0,og=1,plh=0,tim=1635086264766

*** 2016-08-04 16:43:51.481
WAIT #1032164816: nam='SQL*Net message from client' ela= 41458245 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635127723041
CLOSE #1032164816:c=0,e=23,dep=0,type=3,tim=1635127723167
PARSE #1032068312:c=0,e=24,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=0,tim=1635127723232
BINDS #1032068312:
Bind#0
oacdty=01 mxl=4000(4000) mxlc=00 mal=00 scl=00 pre=00
oacflg=01 fl2=1000000 frm=01 csi=178 siz=4000 off=0
kxsbbbfp=3d852a30 bln=4000 avl=00 flg=05
WAIT #1032068312: nam='SQL*Net message to client' ela= 2 driver id=1413697536 #bytes=1 p3=0 obj#=-1 tim=1635127723375
EXEC #1032068312:c=0,e=125,p=0,cr=0,cu=0,mis=0,r=1,dep=0,og=1,plh=0,tim=1635127723393