Facing issue in auto generation of serial number. How can i use row_number() in proper manner or is there any alternative to achieve the expected results? Note: I want to write query without using CASE. Current Results: Expected Results: Answer You can try to use ROW_NUMBER window function in a subquery, then use DENSE_RANK window function to create no column
Tag: group-by
SQL Anywhere error – Function or column reference to ‘Fraction’ must also appear in a GROUP BY
I have this simple SQL SELECT that summarizes by ProductID but I get this “must appear” error. SQL requires me to put column Fraction into GROUP BY clause which I do not need. I just need to summarize by ProductID. How do I build correct SQL statement here? Thanks. Answer You need to use aggregate function:
Oracle SQL: How to write below SQL in Oracle
There is a table t1: Now I need to check if the id only has type a and the count is 1 (single), i.e., only id 4 satisfies this condition in the data above I use the above SQL query to get the data and then use it in code. It’s not a good solution, can anyone help me to
Select consecutive rows under a certain value in MySQL
Selecting consecutive rows with a column under a certain value I have a table with the following data: crashID crash ———————– 1 189 2 144 3 8939 …
SQL: How to group by with two tables?
I have the tables products and history and I need to group by name: products = (id_product, name) history = (id_history, id_product, amount) I tried this SQL query but it isn’t grouped by name: …
group by JSON Column that contains an array
I have the following table: that contains these data: How can I group by my array items in my JSON Column? and get this result:
I have a result set of continuous days and a severity rating. I would like to aggregate these into StartDate, EndDate, Severity
In SQL Server I have a table with the following data Date Severity 2018-09-10 40 2018-09-11 40 2018-09-12 40 2018-09-13 40 2018-09-14 40 2018-09-15 40 2018-09-16 20 2018-09-17 20 2018-…
Group timestamp by hour SQLite
I am trying to group my timestamp column which has a data type of TimeStamp by hour. So this works for grouping by day: I have tried the following for grouping by hour: But this gives me the error: no such function: HOUR: I have seen similar questions asked, but it was DateTime used, not TimeStamp. Additionally I would like
How to find group which is having Status Active? [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 4 years ago. Improve this question I have a id which is having more than one Accountid in a table with status Active . I need to find group of active
MySQL result Group by two values
I need some help for a query to group some rows, I’m trying the whole day and find no solution and I’m sure it’s easy. Maybe some one can bring me light in the dark: My Table: id | Bid | Cid | value …