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PostgreSQL "Column does not exist" but it actually does
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SQL query column does not exist error
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Postgresql Column Not Found, But Shows in Describe
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I have a table with column name as "name" and I want to change it to "Student_Name" for this i used the query
ALTER TABLE "Science_Class" RENAME column name TO Student_Name;
But I am getting the error message as the name column doesn't exit.
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I am trying to insert a line of text into a column where that column is null. Error listed below. Any help is greatly appreciated
UPDATE public.meditech_ar_test4
SET filename = "text"
WHERE filename is null;
ERROR: column "text" does not exist: I am aware that column does not exist, I want to insert it into the field
In Postgres, double quote stand for identifiers (such as table or column names). Here, you actually want a string literal, so you need single quotes:
UPDATE public.meditech_ar_test4
SET filename = 'text'
WHERE filename is null;
Some databases (namely, MySQL), tolerate double quotes for string literals, while using other characters for identifiers (in MySQL: backticks). However in that regard Postgres follows the rules of standard SQL, which defines double quotes for identifiers. You should just take the habit of always using single quotes for string literals (most databases do support that).
This question already has an answer here:
update vachar column to date in postgreSQL
(1 answer)
Closed 2 years ago.
I have a PostgreSQL table that contains a column of data type 'text', that column contains only dates.
I'm trying to convert it to date type, But it doesn't work.
publication_date
-----------
"9/16/2006"
"9/1/2004"
"11/1/2003"
"5/1/2004"
"9/13/2004"
"4/26/2005"
"9/12/2005"
"11/1/2005"
"4/30/2002"
"8/3/2004"
ALTER TABLE books
ALTER COLUMN publication_date SET DATA TYPE date;
outputs:
ERROR: column "publication_date" cannot be cast automatically to type date
HINT: You might need to specify "USING publication_date::date".
SQL state: 42804
The error message tells you what to do:
ALTER TABLE books
ALTER COLUMN publication_date SET DATA TYPE date
USING to_date(publication_date, 'mm/dd/yyyy');
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I only have a uuid, but I don't know which table is the the row of the data located, how can I find the data by the UUID?
My direction maybe create a multiple query, since we could retrieve all tables, then we can loops all table and search by select * from $tableName where id = $uuid, but it might not be efficient enough, is there any shortcut or tool for this purpose?
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I want to use tsrange as type for effective_range column and for valid_range column (transaction start and end timestamp) and use it in temporal queries.
Is there any type to map tsrange to a entity's column/columns?
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Cannot simply use PostgreSQL table name ("relation does not exist")
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This is my query
INSERT INTO EForms_M_FormTypeMaster (FormTypeId,FormTypeCode,FormTypeName)
VALUES ('12','FM','Form');
Getting this error
Error Message relation "eforms_m_modulemaster" does not exist
Please help to solve the issue
Where is the table? If it is in public then you must aware about case insensitive. That means if your table realname is EForms_M_FormTypeMaster you must put it between "
INSERT INTO "EForms_M_FormTypeMaster" ("FormTypeId","FormTypeCode","FormTypeName")
VALUES ('12','FM','Form');