listagg and the 4000 character limit

problem max size of oracle’s listagg is 4000 characters. I’ve copied some code from tom kyte, changed some varchars in clobs and now we’re happyly concatenatin large strings again. CREATE OR REPLACE TYPE t_string_agg AS OBJECT ( g_string VARCHAR2(32767), STATIC FUNCTION ODCIAggregateInitialize(sctx IN OUT t_string_agg) RETURN NUMBER, MEMBER FUNCTION ODCIAggregateIterate(self IN OUT t_string_agg, value IN […]

Search for oracle objects in unix scripts with specific name.

Search for oracle objects in unix scripts with specific name. On Unix: 1. Search script with “prm_” in the text: find . -name ‘*’ -print | xargs grep -i ‘prm_’ > /tmp/all_files On Client 2. Copy file (with winscp) to local dir. 3. Remove all ‘binary shit’ lines 4. Create on Oracle some table with […]

What’s that script doing

Found this script on some media hard drive…. #!/bin/sh SAVEIFS=$IFS IFS=$(echo “\n\b”) for f in * do if [ ! -d “/media/usbdisk/kidz/$f” ] then echo $(du -sh “$f”) fi done IFS=$SAVEIFS Very curious why I left it there and what is was looking for. IFS is the field splitting \n\b is…. \b = character \n […]

minimalize raspian

sudo apt-get remove –purge wolfram-engine scratch omxplayer penguinspuzzle sudo apt-get remove –purge debian-reference-en dillo idle3 python3-tk idle python-pygame python-tk sudo apt-get remove –purge lightdm gnome-themes-standard gnome-icon-theme raspberrypi-artwork sudo apt-get remove –purge gvfs-backends gvfs-fuse desktop-base lxpolkit netsurf-gtk zenity xdg-utils sudo apt-get remove –purge mupdf gtk2-engines alsa-utils lxde lxtask menu-xdg gksu sudo apt-get remove –purge midori xserver-xorg […]

Just ….

select column_name , case data_type when ‘NUMBER’ then data_type||’ (‘||data_precision || case when data_scale != ‘0’ then ‘,’||data_scale else ” end ||’)’ when ‘VARCHAR2′ then data_type||’ (‘||data_length||’ ‘||case char_used when ‘B’ then ‘Byte’ when ‘C’ then ‘Char’ end ||’)’ when ‘DATE’ then data_type end datatype , case nullable when ‘N’ then ‘Not Null’ else ” […]


setting ufw rules….. 1. Read the rules: ~$ sudo ufw status numbered Status: active To Action From — —— —- [ 1] Anywhere DENY IN [ 2] Anywhere DENY IN [ 3] 22 ALLOW IN Anywhere [ 4] 80 ALLOW IN Anywhere [ 5] 25 ALLOW IN Anywhere [ 6] 22 (v6) ALLOW […]

How to exit some bulk collect loop

declare cursor c_cur is select id from sometable; — type t_cur is table of c_cur%rowtype index by binary_integer; a_cur t_cur; l_limit binary_integer := 1000; begin — open c_cur; — loop fetch c_cur bulk collect into a_cur limit l_limit; exit when c_cur%notfound; /*[some code]*/ end loop; — close c_cur; — end; declare cursor c_cur is select […]

change default text editor in Ubuntu

The default editor for crontab on Ubunut is Nano. I don’t like it. I just like vi (or the vim version for linux). According to the official notes about changing the default editor, I should use this command: $ sudo update-alternatives –config editor This gives a screen like this: $ sudo update-alternatives –config editor [sudo] […]

cleaning up, weeknumber in php…

<?php setlocale(LC_ALL, ‘nl_NL’); $weeknrkeep=-1; $today = time(); echo $today.”<br>”; for ($i=0;$i<200;$i++) : $weeknr= strftime(‘%V’, strtotime(‘+’.$i.’ day’,$today)); if ($weeknr != $weeknrkeep): echo “<br><strong>week “.$weeknr.”</strong><br>”; endif; echo strftime(‘%a %d-%m-%Y’, strtotime(‘+’.$i.’ day’,$today)).”<br>\n\r”; $weeknrkeep=$weeknr; endfor; ?> this outputs a list of weeknumbers and the days’s and dates in that week. must have been some test for some website….. output […]