Tag: user_id INT

How to prevent seek pagination from doing sequential scan over entire table

Post author By Jessica Alba
Post date May 23, 2020
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I have 3 tables and a materialized view resource_categories contains all category names and metadata create table if not exists resource_categories ( category_id INT, title VARCHAR(255), content TEXT, icon VARCHAR(50) ); resources contains all resources under each category create table if not exists resources ( resource_id INT, title VARCHAR(255), content TEXT, link VARCHAR(1000), category_id INT […]

Tags `title`, '0'::bigint)) DESC, 0) AS likes FROM resources r LEFT JOIN resource_votes_aggregate a ON r.resource_id = a.resource_id ORDER BY likes DE, category_id INT REFERENCES resource_categories(resource_id), COALESCE(likes, Content TEXT, created_at DATE, I have 3 tables and a materialized view resource_categories contains all category names and metadata create table if not exists resource_ca, icon VARCHAR(255), icon VARCHAR(50) ); resources contains all resources under each category create table if not exists resources ( resource_id INT, link VARCHAR(1000), r.resource_id DESC Sort Method: top-N heapsort Memory: 25kB -> Hash Right Join (cost=12.03..59.25 rows=918 width=157) (actual time=0.032..0.0, resource_id DESC LIMIT 5; Execution Plan QUERY PLAN Limit (cost=74.50..74.52 rows=5 width=157) (actual time=0.058..0.060 rows=5 loops=1) ->, Title varchar(255), updated_at DATE ); resource_votes contains user liking a resource or disliking it create table if not exists resource_votes ( resource_, user_id INT, vote BOOLEAN ); resource_votes_aggregate a materialized view with likes per resource_id I want to execute the following queries Find all r

Mastering Development

SQL Least Earning Location Count

Post author By Full Stack
Post date April 2, 2020
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I am using an online editor to solve query https://www.jdoodle.com/execute-sql-online/ have the following SQL Table create table CITIES(id int, name String); create table USERS(id int, city_id String, name String, email); create table RIDES(id int, user_id int, distance int, fare int); INSERT INTO CITIES (id, name) VALUES (1,”Cooktown”), (2,”South Suzanne”); INSERT INTO USERS (id, city_id, name, […]

Tags "Cooktown"), "South Suzanne"); INSERT INTO USERS (id, 2, city_id, city_id String, distance int, email); create table RIDES(id int, fare int); INSERT INTO CITIES (id, I am using an online editor to solve query https://www.jdoodle.com/execute-sql-online/ have the following SQL Table create table CITIES(id, Name, name String); create table USERS(id int, name: String, name) VALUES(1, user_id INT

Development

Fetch data from last week, even if no entry is present on few day

Post author By Full Stack
Post date February 22, 2020
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I want to fetch data from two tables post, post_like I want the data such that if row entry is not present in post_like table null/0 as result to be shown currently row data is omitted if the data is not present for a particular day. I have prepared sample data CREATE TABLE post(post_id INT, […]

Tags "2020-02-10"), "2020-02-11"), "2020-02-11"); SQL fiddle Query I am using SELECT COUNT(a.post_id) AS likeCnt, "2020-02-13"), "2020-02-14"), "2020-02-15"), "2020-02-16"), "2020-02-17"), 1, 2, 2020-02-12, 3, 3); CREATE TABLE post_like(post_id INT, 4, 5, created_on DATE); INSERT INTO post_like VALUES (1, DAYNAME(DATE(a.created_on)) as day FROM post_like a JOIN post b ON b.post_id = a.post_id WHERE a.created_on BETWEEN subdate(curda, dayofweek(curdate())-1) AND b.user_id = 1 AND b.post_type = 2 GROUP BY DATE(a.created_on) above query returns me day wise dat, dayofweek(curdate())+5) AND subdate(curdate(), I want to fetch data from two tables post, post_like I want the data such that if row entry is not present in post_like table null/0 as result to be shown currently row data is omitt, post_type INT); INSERT INTO post VALUES (1, user_id INT