I use PostgreSQL 14 to manage a table which stores updates to a table of medics: users can update the first name, last name, and or/ the age of the medic. A field which was not touched by an update…
I have a table of email addresses: CREATE TABLE contacts( email VARCHAR(255) ) INSERT INTO contacts VALUES ('[email protected]'), ('[email protected]'), ('[email protected]'); How can I find and replace the email format so [email protected] -> [email protected]? E.g: UPDATE contacts SET email = REGEXP_REPLACE(email,…
I found a strange bug (I guess) in mariadb Suppose you have a table table1 with col1 and other table2 with col1 and you want to list all row in table1 whose col1 values exist in table2. We could code…
Below is the INPUT Table having student and his/her two interests of learning different subjects. Student Int1 Int2 1 DS Networks 2 OS DS 3 DS OS 4 Networks DB 5 OS Networks 6 DB DS 7 Networks OS 8…
I run a simple select * query that returns an output like this: [{ "polarity": "0.0", "magnitude": "2.0", "score": "0.5", "entities": [{ "name": "Taubenkot", "type": "OTHER", "mid": "", "wikipediaUrl": "", "numMentions": "1", "avgSalience": "0.150263" }, { "name": "Lösung", "type": "OTHER",…
I am trying to extract the month from the the Order_date column by using postgres SQL , and the format is required to come in the name of the month format ;for example, December. When I applied the extract function…
My previous question was not understood well, so I reformulated it here. Having this as the source table: CREATE TABLE response (response_id INT, utime INT, question_id INT, response VARCHAR(500)) INSERT INTO response (response_id, utime, question_id, response) VALUES (5,1459542506,11,1),(5,1459542506,12,0),(5,1459542506,13,0), (5,1459542506,14,0),(5,1459542506,15,0),(7,1458210291,11,0),(7,1458210291,12,1), (7,1458210291,13,1),(7,1458210291,14,0),(7,1458216077,15,1),(10,1458212391,11,1),…
How do i join a table using limit? I have the below query but it doesn't work as expected. Am using left join to select only one row from table, but it only select one record as expected for the…
I have a table id user_id created_at status 1 100 2022-12-13 00:12:12 IN_TRANSIT 2 104 2022-12-13 01:12:12 IN_TRANSIT 3 100 2022-12-13 02:12:12 DONE 4 100 2022-12-13 03:12:12 IN_TRANSIT 5 104 2022-12-13 04:12:12 DONE 6 100 2022-12-13 05:12:12 DONE 7 104…
The following function identifies columns with null values. How can I extend the where clause to check null or empty value? coalesce(TRIM(string), '') = '' CREATE OR REPLACE FUNCTION public.is_column_empty(IN table_name varchar, IN column_name varchar) RETURNS bool LANGUAGE plpgsql AS…