My table name is participant_preference and the column name is 'value' and the JSON is in the column as below, { "DiaryUsers": [ { "UserId": "HUGWFJJ6", "IsDiaryVisible": false, "ParticipantName": "Dr. Mckenzie, Alistair G [SP000024]", "Status": "A" }, { "UserId": "HUV65PV1",…
I'm trying to update a table by using join. Also one of the join is self join. I need to update a column with the same column in the same table. SERVICE ID code value 123 QUANTITY1 2 123 QUANTITY2…
I'm a bit new to postgres and quite rusty with SQL. I have a users table with password_hash column which stores a hashed password through pgcrypto. id | name | email | password_hash | ----+------------+-----------------+------------------------------------+ 1 | john doe |…
I have something like that, i need to get "triangular" number - created by summing all natural ones from 0 to n. I have such code, what should i write so i could SUM name_of_column FROM generate_series? SELECT n, CASE…
I'm trying to use an array that was declared earlier in a postgres script, but I keep getting the following error : op ANY/ALL (array) requires array on right side This is my code : DO $$ DECLARE id_cie VARCHAR(50)…
I have a table (under RDS Postgres v. 15.4 instance db.m7g.large): CREATE TABLE MyTable ( content_id integer, part integer, vector "char"[] ); There is a B-Tree index on content_id. My data consists of 100M rows. There are 1M (0 ..…
I am trying to restore my backup that is in .backup format to vercel but i keep getting this error pg_restore: error: unsupported version (1.15) in file header pg_dump --version pg_dump (PostgreSQL) 15.4 (Ubuntu 15.4-1.pgdg22.04+1) psql --version psql (PostgreSQL) 15.4…
Is it advised or even possible to select from multiple tables, and assign the results from some of the tables as new columns in the query result? Lets say I have 3 tables: cars, records, maintenance If given a cars…
I have the following table defined in Postgres (version 12.12): Table "public.test" Column | Type | Collation | Nullable | Default -----------+-------+-----------+----------+--------- uuid | uuid | | | name | text | | | json_data | jsonb | | |…
I'm trying to add a fixed value in the method copy. There is a csv file, but in addition to the data from it, I want to add a fixed value to the table. In vertica there is column‑as‑expression. create…