PostgreSQL - WHERE clause not working - Column name not found

Question

My simple WHERE query is not working. It says column "Exception" does not exist, but the column it type, that is only a value.

SQL Query:

select * from logs
where type = "Exception"

Picture of the error

`"` characters are for column names. You have to use `'` characters. — S-Man, Jul 22 '19 at 07:33
@S-Man More generally, double quotes are for _identifiers_, which could include table and database names, in addition to column names. — Tim Biegeleisen, Jul 22 '19 at 07:35
https://www.postgresql.org/docs/current/sql-syntax-lexical.html#SQL-SYNTAX-CONSTANTS — a_horse_with_no_name, Jul 22 '19 at 07:39
@LukaszDabrowski: you will need double quotes for your case sensitive column names however. You should really re-create that table **without** using any double quotes. As a rule of thumb: never use double quotes in SQL — a_horse_with_no_name, Jul 22 '19 at 07:39

score 3 · Answer 1 · answered Jul 22 '19 at 07:36

3

Try this one:

SELECT *
FROM
   logs
WHERE
   type = 'Exception'

answered Jul 22 '19 at 07:36

dbz

score 1 · Answer 2 · answered Jul 22 '19 at 07:35

1

As S-Man commented the answer is: " characters are for column names. You have to use ' characters.

answered Jul 22 '19 at 07:35

Lukasz Dabrowski

2 Answers2