In Postgresql, I try to subtract 5 milliseconds (using fixed constant, when I search on Google, most of example using fixed constants) SELECT ([field start_date] - interval '00:00:00.005') AS work_timestamp from mytable How to change '5' or '00:00:00.005' form query…
In a one-to-many relationship, users have many contracts. However, I only want the most recent contract for a specific set of users. My query to get all contracts for users look like this: SELECT userid FROM contract WHERE userid IN…
I have the following table with one row. I have tried to query this table to return authors under the age of 40 and have been unable to do so. CREATE TABLE bookstuff ( data JSON ); insert into bookstuff(data)…
I have simple table table_b id (integer) data (json) text (text) 1 {} yes 2 {} no Json look like {"types": [{"key": "first_event", "value": false}, {"key": "second_event", "value": false}, {"key": "third_event", "value": false}...]} I just want to modify data and…
const friendIds = friends.rows.map((friend) => friend.friend_id); console.log("list", friendIds); //list [ 50, 51 ] const users = await pool.query( "SELECT * FROM super_user WHERE user_id NOT IN(ARRAY[$1])", [friendIds] ); I want to query all users where the user_id does not equal…
I have the following table of inventory stock symbols and want to fetch the highest alphanumeric value which is AR-JS-20. When I say "highest" I mean that the letter order is sorted first and then numbers are factored in, so…
I am trying to get all customers with their latest payment transaction, including customers without any transaction: SELECT c.customer_id, c.phone_number, c.email , p.transaction_no, p.amount, p.transaciton_datetime FROM tbl_customers c LEFT JOIN ( SELECT customer_id, transaction_no, amount, transaciton_datetime FROM tbl_payment_transactions ORDER BY…
The routed_way table has a column named way where the path of a vehicle is stored. The length of these paths can vary greatly, with some being short and others containing millions of points. Although the table only has thousands…
i'm quite new to postgressql, so i have a table called public.dim_products with a column called weight_kg what i would like to do is given some weight in the weight ranges below to set up a new column called weight_class…
I have the following table: car score description Opel 30 43 Volvo 500 434 Kia 50 3 Toyota 4 4 Mazda 5000 4 How I can delete all the content of table column score without changing the table structure? Expected…