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Commit 6de3a517 authored by Peter Gerwinski's avatar Peter Gerwinski
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Beispiele 18.12.2024

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20241211/joins-00.txt 0 → 100644
+ 80
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View file @ 6de3a517
testdb=> select * from cd; id | albumtitel | interpret | erscheinungsjahr
------+--------------------+-----------+------------------
4712 | Wish You Were Here | 312 | 1975
4713 | Freak of Nature | 311 | 2001
4711 | Not That Kind | 311 | 2000
(3 Zeilen)
testdb=> select * from kuenstler; id | interpret | gruendungsjahr
-----+------------+----------------
311 | Anastacia | 1999
312 | Pink Floyd | 1965
(2 Zeilen)
testdb=> select * from lied; id | track | titel
------+-------+----------------------------
4711 | 1 | Not That Kind
4712 | 1 | Shine On You Crazy Diamond
4713 | 1 | Paid my Dues
4711 | 3 | Cowboys & Kisses
4711 | 2 | I'm Outta Love
(5 Zeilen)
testdb=> select c.id, c.albumtitel, k.gruendungsjahr, c.erscheinungsjahr, l.track, l.titel from cd as c join kuenstler as k on c.interpret = k.id join lied as l on c.id = l.id;
id | albumtitel | gruendungsjahr | erscheinungsjahr | track | titel
------+--------------------+----------------+------------------+-------+----------------------------
4711 | Not That Kind | 1999 | 2000 | 1 | Not That Kind
4712 | Wish You Were Here | 1965 | 1975 | 1 | Shine On You Crazy Diamond
4713 | Freak of Nature | 1999 | 2001 | 1 | Paid my Dues
4711 | Not That Kind | 1999 | 2000 | 3 | Cowboys & Kisses
4711 | Not That Kind | 1999 | 2000 | 2 | I'm Outta Love
(5 Zeilen)
testdb=> insert into cd values ( 4714, "leere CD", 313, 2024 );
FEHLER: Spalte »leere CD« existiert nicht
ZEILE 1: insert into cd values ( 4714, "leere CD", 313, 2024 );
^
testdb=> insert into cd values ( 4714, "leere CD', 313, 2024 );
testdb"> insert into cd values ( 4714, 'leere CD", 313, 2024 );
FEHLER: Spalte »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD« existiert nicht
ZEILE 1: insert into cd values ( 4714, "leere CD', 313, 2024 );
^
testdb=> insert into cd values ( 4714, "leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD', 313, 2024 );
testdb"> select * from cd; testdb"> "
testdb(> )
testdb-> ;
HINWEIS: Bezeichner »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD', 313, 2024 );
select * from cd;
« wird auf »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD« gekürzt
FEHLER: Spalte »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD« existiert nicht
ZEILE 1: insert into cd values ( 4714, "leere CD', 313, 2024 );
^
testdb=> insert into cd values ( 4714, "leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD', 313, 2024 );
select * from cd;
testdb"> "
testdb(> )
testdb-> ;
HINWEIS: Bezeichner »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD', 313, 2024 );
select * from cd;
« wird auf »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD« gekürzt
FEHLER: Spalte »leere CD', 313, 2024 );
insert into cd values ( 4714, 'leere CD« existiert nicht
ZEILE 1: insert into cd values ( 4714, "leere CD', 313, 2024 );
^
testdb=> select * from cd;
id | albumtitel | interpret | erscheinungsjahr
------+--------------------+-----------+------------------
4712 | Wish You Were Here | 312 | 1975
4713 | Freak of Nature | 311 | 2001
4711 | Not That Kind | 311 | 2000
(3 Zeilen)
testdb=>
20241211/joins-01.txt 0 → 100644
+ 51
− 0
View file @ 6de3a517
testdb=> select * from cd;
id | albumtitel | interpret | erscheinungsjahr
------+--------------------+-----------+------------------
4712 | Wish You Were Here | 312 | 1975
4713 | Freak of Nature | 311 | 2001
4711 | Not That Kind | 311 | 2000
(3 Zeilen)
testdb=> insert into cd values ( 4714, 'leere CD', 313, 2024 );
INSERT 0 1
testdb=> select * from cd;
id | albumtitel | interpret | erscheinungsjahr
------+--------------------+-----------+------------------
4712 | Wish You Were Here | 312 | 1975
4713 | Freak of Nature | 311 | 2001
4711 | Not That Kind | 311 | 2000
4714 | leere CD | 313 | 2024
(4 Zeilen)
testdb=> select c.id, c.albumtitel, k.gruendungsjahr, c.erscheinungsjahr, l.track, l.titel from cd as c join kuenstler as k on c.interpret = k.id join lied as l on c.id = l.id;
id | albumtitel | gruendungsjahr | erscheinungsjahr | track | titel
------+--------------------+----------------+------------------+-------+----------------------------
4711 | Not That Kind | 1999 | 2000 | 1 | Not That Kind
4712 | Wish You Were Here | 1965 | 1975 | 1 | Shine On You Crazy Diamond
4713 | Freak of Nature | 1999 | 2001 | 1 | Paid my Dues
4711 | Not That Kind | 1999 | 2000 | 3 | Cowboys & Kisses
4711 | Not That Kind | 1999 | 2000 | 2 | I'm Outta Love
(5 Zeilen)
testdb=> select c.id, c.albumtitel, k.gruendungsjahr, c.erscheinungsjahr, l.track, l.titel from cd as c left join kuenstler as k on c.interpret = k.id left join lied as l on c.id = l.id;
id | albumtitel | gruendungsjahr | erscheinungsjahr | track | titel
------+--------------------+----------------+------------------+-------+----------------------------
4711 | Not That Kind | 1999 | 2000 | 1 | Not That Kind
4712 | Wish You Were Here | 1965 | 1975 | 1 | Shine On You Crazy Diamond
4713 | Freak of Nature | 1999 | 2001 | 1 | Paid my Dues
4711 | Not That Kind | 1999 | 2000 | 3 | Cowboys & Kisses
4711 | Not That Kind | 1999 | 2000 | 2 | I'm Outta Love
4714 | leere CD | | 2024 | |
(6 Zeilen)
testdb=> select c.id, c.albumtitel, k.gruendungsjahr, c.erscheinungsjahr, l.track, l.titel from cd as c left join kuenstler as k on c.interpret = k.id join lied as l on c.id = l.id;
id | albumtitel | gruendungsjahr | erscheinungsjahr | track | titel
------+--------------------+----------------+------------------+-------+----------------------------
4711 | Not That Kind | 1999 | 2000 | 1 | Not That Kind
4712 | Wish You Were Here | 1965 | 1975 | 1 | Shine On You Crazy Diamond
4713 | Freak of Nature | 1999 | 2001 | 1 | Paid my Dues
4711 | Not That Kind | 1999 | 2000 | 3 | Cowboys & Kisses
4711 | Not That Kind | 1999 | 2000 | 2 | I'm Outta Love
(5 Zeilen)
testdb=>
20241211/pult-01.txt 0 → 100644
+ 26
− 0
View file @ 6de3a517
pult@streaming:~$ cat $(which pult)
#!/bin/sh
case "$1" in
vnc)
case "$2" in
on) HOME=/home/pult/vnc6 DISPLAY=:6 xtigervncviewer -passwd /home/pult/.vnc/passwd.5926 -viewonly -shared -fullscreen localhost:5926 &;;
off) killall xtigervncviewer;;
*) echo "Usage: $0 vnc (on|off)";;
esac;;
camera)
case "$2" in
on) echo "activate_slot 0 deadbeef" > /usr/local/var/run/pult/cvh-camera-6.input
echo "set_geometry_relative_to_canvas 0 rb 0 0 480 360" > /usr/local/var/run/pult/cvh-camera-6.input;;
off) echo "deactivate_slot 0" > /usr/local/var/run/pult/cvh-camera-6.input;;
min) echo "set_geometry_relative_to_canvas 0 rb 0 0 480 360" > /usr/local/var/run/pult/cvh-camera-6.input;;
max) echo "set_geometry_relative_to_canvas 0 lt 0 0 1440 1080" > /usr/local/var/run/pult/cvh-camera-6.input;;
*) echo "Usage: $0 camera (on|off|min|max)";;
esac;;
*) echo "Usage: $0 (vnc|camera) <command>";;
esac
pult@streaming:~$ pult camera max
pult@streaming:~$ pult camera min
pult@streaming:~$ pult camera max
pult@streaming:~$ pult camera min
pult@streaming:~$ echo "set_geometry_relative_to_canvas 0 rt 0 0 480 360" > /usr/local/var/run/pult/cvh-camera-6.input
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