Postgresql Column Not Found, But Shows in Describe

Postgresql Column Not Found, But Shows in Describe

Why do you use ` in column name?

You can use it without any quote characters, while with quote characters it may be case sensitive. Also such quote char is ", and not `

So use:

select "transactionAmount" 
from ... 
where ... 
group by "transactionAmount";

Read about identifiers at: http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html

PostgreSQL Column does not exist but it actually does

Try to take it into double quotes - like "Continent" in the query:

SELECT "Continent"
FROM network.countries
...

Postgresql Column Doesn't Exist

if you really have a camel case in you column name then you must wrap the column name with double quote

SELECT "CntrctTrmntnInd"  FROM return_part_i LIMIT 10;

PostgreSQL columns (object) name are case sensitive when specified with double quotes. Unquoted identifiers are automatically used as lowercase so the correct case sequence must be write with double quotes

and as correctly suggested by Raymond Nijland if you want a LIMIT in result you should use an order by

SELECT "CntrctTrmntnInd"  FROM return_part_i ORDER BY "CntrctTrmntnInd" LIMIT 10;

Getting column does not exist error in postgresql sql table

You need to use single quote instead of double quote

SELECT * FROM test where source = 'aaamt'

PostgreSQL column 'foo' does not exist

You accidentally created the column name with a trailing space and presumably phpPGadmin created the column name with double quotes around it:

create table your_table (
    "foo " -- ...
)

That would give you a column that looked like it was called foo everywhere but you'd have to double quote it and include the space whenever you use it:

select ... from your_table where "foo " is not null

The best practice is to use lower case unquoted column names with PostgreSQL. There should be a setting in phpPGadmin somewhere that will tell it to not quote identifiers (such as table and column names) but alas, I don't use phpPGadmin so I don't where that setting is (or even if it exists).

PostgreSQL column exists does not exist

The explanation for the confusing error can be found in the manual for pl/pgsql Expressions, which explains:

When you write a PL/pgSQL statement IF expression THEN ... PL/pgSQL will evaluate the expression by feeding a query like SELECT expression to the main SQL engine

So in your case, the expression is being translated to SELECT EXISTS _colvar, which looks to the query parser like a column named "EXISTS" being given an alias _colvar".

To fix it, you need something that would be valid in a select list. For instance:

IF _colvar IS NOT NULL ...

PostgreSQL column does not exist when it does

You are going through a lot of hoops with permissions, but the problem is simple syntax:

WITH update_parts (id, id_finish) AS (
    VALUES (1,42), (2,42), (3,30), (4,30)
) 
UPDATE parts SET id_metal = up.id_finish
FROM update_parts up WHERE up.id = parts.id;

In your CTE you define the columns id and id_finish so your main query should refer to the same up.id_finish, not the id_metal from the parts table.

Further, it is usless to update parts.id with the value of update_parts.id because they are the same by definition: WHERE up.id = parts.id.

Column doesnot exist error in PostgreSQL command

If you write "tablename.columnname", that is not interpreted as table name and column name, but as a single identifier. Based on the context in a join condition, PostgreSQL expects it to be a column name.

If you use double quotes, you have to quote column and table separately: "tablename"."columnname"

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