-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.

--------------------------------------------------------------------------------
--
-- Name:        init.sql
-- Purpose:     Initializes sqlplus variables for 156 character terminal width and other settings.
--
-- Author:      Tanel Poder
-- Copyright:   (c) http://www.tanelpoder.com
-- 
-- Other:       You need to comment out the right variable definitions for your client platform below.
--              Assumes SQLPATH variable set to point to TPT script directory.
--
--------------------------------------------------------------------------------

-- this must be here to avoid logon problems when SQLPATH env variable is unset
def SQLPATH=""


-- set SQLPATH variable to either Unix or Windows format

def SQLPATH=$SQLPATH -- (Unix/Mac OSX)
--def SQLPATH=%SQLPATH% -- (Windows)

-- def _start=start    -- Windows
-- def _start=xdg-open -- Unix/Linux
def _start=open        -- MacOS

def _delete="rm -f" -- Unix/MacOSX
-- def _delete="del" -- Windows

def _tpt_tempdir=&SQLPATH/tmp

-- some internal variables required for TPT scripts

  define _ti_sequence=0
  define _tptmode=normal
  define _xt_seq=0

  define all='"select /*+ no_merge */ sid from v$session"'
  define prev="(select /*+ no_unnest */ prev_sql_id from v$session where sid = (select sid from v$mystat where rownum=1))"

  -- geeky shorcuts for producing date ranges for various ASH scripts
  define     min="sysdate-1/24/60 sysdate"
  define    1min="sysdate-1/24/60 sysdate"
  define  minute="sysdate-1/24/60 sysdate"
  define    5min="sysdate-1/24/12 sysdate"
  define    hour="sysdate-1/24 sysdate"
  define   1hour="sysdate-1/24 sysdate"
  define   2hours="sysdate-1/12 sysdate"
  define  24hours="sysdate-1 sysdate"
  define      day="sysdate-1 sysdate"
  define    today="TRUNC(sysdate) sysdate"

-- you should change linesize to match terminal width - 1 only 
-- if you don't have a terminal with horizontal scrolling
-- capability (cmd.exe and Terminator terminal do have horizontal scrolling)

  set linesize 999

-- set truncate after linesize on

    -- set truncate on

-- set pagesize larger to avoid repeting headings

  set pagesize 5000

-- fetch 1000000 bytes of long datatypes. good for
-- querying DBA_VIEWS and DBA_TRIGGERS

  set long 1000000
  set longchunksize 1000000

-- larger arraysize for faster fetching of data
-- note that arraysize can affect outcome of experiments
-- like buffer gets for select statements etc.
-- 
-- setting from 500 to 100 as otherwise snapper/dbms_output starts getting ORA-6502 errors due to 32k fetch limit of dbms_output

  set arraysize 100

-- normally I keep this commented out, otherwise
-- a DBMS_OUTPUT.GET_LINES call is made after all
-- PL/SQL executions from sqlplus. this may distort
-- execution statistics for experiments

  --set serveroutput on size unlimited

-- to have less garbage on screen

  set verify off

-- to trim trailing spaces from spool files

  set trimspool on

-- to trim trailing spaces from screen output

  set trimout on

-- don't use tabs instead of spaces for "wide blanks"
-- this can mess up the vertical column locations in output

  set tab off

-- this makes describe command better to read and more
-- informative in case of complex datatypes in columns

  set describe depth 1 linenum on indent on

-- you can make sqlplus run any command as your editor
-- I could use "start notepad" on windows if you want to 
-- return control back to sqlplus immediately after launching
-- notepad (so that you can continue typing in sqlplus

  define _editor="vi -c 'set notitle'"  
--  define _external_editor="/Applications/Terminator.app/Contents/MacOS/Terminator vi "  

-- assign the tracefile name to trc variable

  def trc=unknown

  column tracefile noprint new_value trc

  -- its nice to have termout off here as otherwise this would be
  -- displayed on the screen
  set termout off

  select value ||'/'||(select instance_name from v$instance) ||'_ora_'||
         (select spid||case when traceid is not null then '_'||traceid else null end
                from v$process where addr = (select paddr from v$session
                                           where sid = (select sid from v$mystat
                                                      where rownum = 1
                                                 )
                                      )
         ) || '.trc' tracefile
  from v$parameter where name = 'user_dump_dest';

  column tracefile print 

-- make default date format nicer

  alter session set nls_date_format = 'YYYY-MM-DD HH24:MI:SS';

-- include username and connect identifier in prompt

--  column pr new_value _pr
--  select initcap('&_user@&_connect_identifier> ') pr from dual;
--  set sqlprompt "&_pr"
--  column _pr clear


-- format some more columns for common DBA queries

  col first_change# for 99999999999999999
  col next_change# for 999999999999999999999
  col checkpoint_change# for 99999999999999999
  col resetlogs_change# for 99999999999999999
  col plan_plus_exp for a100
  col value_col_plus_show_param ON HEADING  'VALUE'  FORMAT a100
  col name_col_plus_show_param ON HEADING 'PARAMETER_NAME' FORMAT a60

-- oracle 12.2+ has too wide OWNER and OBJECT_NAME...

  col owner           for a30 wrap
  col object_name     for a30 wrap
  col subobject_name  for a30 wrap
  col segment_name    for a30 wrap
  col partition_name  for a30 wrap

-- set html format

@@htmlset nowrap "&_user@&_connect_identifier report"

-- set seminar logging file

DEF _tpt_tempfile=sqlplus_tmpfile

col seminar_logfile new_value seminar_logfile
col tpt_tempfile new_value _tpt_tempfile

select 
    to_char(sysdate, 'YYYYMMDD-HH24MISS') seminar_logfile 
  , instance_name||'-'||to_char(sysdate, 'YYYYMMDD-HH24MISS') tpt_tempfile
from v$instance;

def seminar_logfile=&SQLPATH/logs/&_tpt_tempfile..log

-- spool sqlplus output
spool &seminar_logfile append

set editfile afiedit.sql

-- set up a default ref cursor for Snapper V4 begin/end snapshotting
-- var snapper refcursor

-- reset termout back to normal

  set termout on