Why am I getting ERROR: column "GLOBE-BE-154" does not exist I create a Table in a Database and looks as following
test1=# SELECT * FROM stunden_Plan;
 stunde | montag | dienstag | mittwoch | donnerstag | freitag 
--------+--------+----------+----------+------------+---------
      1 |        |          |          |            |
(1 row)


From this distinction, I wanted to insert some values into the table below...
INSERT INTO stunden_Plan (stunde, montag, dienstag, mittwoch, donnerstag, freitag)
VALUES (2, &quot;GLOBE-BE-154&quot;, &quot;CH-SCH-156&quot;, &quot;D-KR-477&quot;, &quot;M-HA-477&quot;, &quot;E-ZE-477&quot; );

But I got an error of which I have no understanding!
ERROR:  column &quot;GLOBE-BE-154&quot; does not exist

I am grateful for any help. Thanks!
As documented in the manual string constants need to be enclosed in single quotes in SQL
INSERT INTO stunden_Plan (stunde, montag, dienstag, mittwoch, donnerstag, freitag)
VALUES (2, 'GLOBE-BE-154', 'CH-SCH-156', 'D-KR-477', 'M-HA-477', 'E-ZE-477' );

Double quotes are for identifiers