I have some data that looks something like this: ——————————————— ID |EVENTDATETIME |CATEGORY |SOMEPROPERTY ——————————————— 1 |20/03/…
Tag: group-by
check for same range in postgresql
I wanted to check if for one particular student my column (Amount) contains a value less than 10, and if yes, then check if for the same student my column (Amount) is also greater than 10 and update the column new accordingly in PostgreSQL. MY table: Tried this way but not working The output I’m expecting: Answer One option is
Mysql query per date and per group
I have an SQL query which counts user uptake (registrations) by day for a particular group of users. It also does a cumulative (running total) This query is using the audit table purely to get me a list of dates reliable even if there are no users created on every day, i know the audit table with have a record.
SQLite 3.24 – Counting occurrences of value grouped by id without using window functions
Apologies if this has been asked, but maybe I’m not familiar with the language to ask for what I want, and I looked through dozens of other questions but don’t seem to be finding what works. I’m working on a tool for a trading card game, a deck is a list of cards, I have a table mapping deckId to
Sql limit record grouped
I have a table ‘Players’ In this table the columns are ‘ID’,’surname’,’nation’ I need a query and result must shows a list of Players by nations limited by 4 for nations Ex Table players Resultset Answer With row_number() window function: See the demo. Or if your version of SQLite does not support window functions: See the demo. Results:
Count number of students above and below the average score in SQL
I have a sample table below and I am trying to get the number of student above the average score and number of students below the average score. The target result table is supposed to look like I have been able to write a query to get the names of students above the average score and this can be easily
Is it possible to use SELECT DISTINCT and GROUP BY together?
Is it possible to use SELECT DISTINCT and GROUP BY clause together? I need DISTINCT to avoid duplicate values and make a single entry of the records, and then get the Total quantity of those duplicate values. For example, I have columns like Item Name and Quantity and their records are (product A,5), (product A,7). Since products are the same
SQL Statement: Group BY not working as it is needed to
I am trying to get a count of the number of students that are absent at a particular day. I am going to be providing a sample of the view here: I am trying to get a count a view that shows me School_Name, Absent_Date, Name and Student_ID from the data above where a student has skipped more than or
In PostgreSQL, how to query for a computed results by the grouping of a field?
In my PostgreSQL database I have an invitations table like so: Invitations Table: Fields Details I’d like to query the Invitations table and group by unique sources. And then per source, include the total # of records and the total of those completed. Completed being where complated_at is NOT NULL. Desired Results: Suggestions? Answer You can do aggregation like so:
convert column in rows and get count of different values of same column in postresql
test convert column in rows and get count of different values of same column in postresql