I have a table (called users) I need rank of users based on their score but I want rank on the bases of users max score. Expect result Answer You are looking for DENSE_RANK, But it supports mysql version higher than 8.0 use correlated-subquery to get max value by each User_id use two variables one to store ra…
Tag: sql
How to look if the value reoccurs in the table after current selection in SQL
I have below data table [CRA_feasibility_test] atmid CRA monday tuesday wednesday thursday friday saturday DA0068C1 ABC Y N Y N N Y I …
Postgres – Multiple conditions on single column with the WHERE AND condition?
So I have a query as follows: SELECT AVG(ratings.rating) FROM ratings INNER JOIN movies ON movies.movieid = ratings.movieid INNER JOIN hasagenre ON hasagenre.movieid = movies.movieid INNER JOIN …
Why is MySQL SUM query only returning one row?
I am trying to create a MySQL query to return the sum of all statement balances for each account in my DB. The query looks like this: SELECT SUM(balance), handle FROM statement_versions INNER JOIN …
Postgresql – Return a column resulting from join as single json column
I have a many to many relationship between users and roles table (A typical usecase). They are related together using a user_role table. I execute the below query: select u.id, u.first_name, u….
Yesterday SQL Server
I know very little SQL and have been asked to fix a problem in existing code. The code is PHP but the SQL causing the problem is: $sql = “INSERT INTO Intranet.dbo.DailyBilling (Date, JobCode, SubJob,…
Select Subquery Group By
I am having an issue with this simple query. I get the error “Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, , >= or when the subquery is …
Aggregations in SQLite
I am looking to construct a SQL query which is able to sum up installment values by month. Ordinarily this wouldn’t be too hard as you would simply sum the installment values and group by month. …
How is this code adding a number to a datetime without using DATEADD? [closed]
In the following SQL statement there’s some T-SQL that adds a number to a datetime and to a date: declare @t table(UserID int, StartDate datetime, EndDate date) insert @t select 1, ‘20110101’, ‘…
How does Hibernate do row version check for Optimistic Locking before committing the transaction
When before committing the current transaction hibernate checks the version of the row, it should issue an sql select statement for fetching ithe row. Assume that after issuing that select statement hibernate finds out that the row version is not changed, hence it should proceed with committing the transactio…