I have a transfer table which looks like this: transfer I would like to get the balance of each participant from the transfer table. The output of the query should looks like this: output
SQL MAX(COUNT(*)) GROUP BY Alternatives?
I’ve seen many topics about this and none of them is what I’m looking for. Say we have this simple table: CREATE TABLE A ( id INT, date DATETIME ); I want to retrieve the MAX value after …
Parent child relationship Join tables in oracle sql
I have a requirement below. Now I have to get output like below How can this be achieved ? I have written the below SQL but parent_position_id is coming, not parent_position_code select hapf….
SQL Server query for calculating time duration for column containing multiple datetime entries against order number and order state
I need a T-SQL query for calculating time duration for column containing multiple datetime entries against order number and order state. Example: I need the query to find out total time duration for …
How can I assign unique value to each duplicate value in a column in a table
I have data in my table as below Now I want to generate unique rank value to each duplicate value like 1,2,3,4 etc as below How to do this in SQL Server 2016?
Should there be a foreign key “to” an associative entity, or “from” the associative entity?
I am trying to build a database for a bookstore. The following is a smaller subset of the overall design. Currently I have a Book entity with ISBN (primary key), title, and some others as attributes. …
Round datetime to the beginning of the current hour
I would like to round a datetime (should also return a datetime) to the beginning of the hour it’s on, so for example: 2018-09-22 11:31:42.411 -> 2018-09-22 11:00:00.000 2018-09-22 11:08:02.456 -&…
SQLException: ORA-02292: integrity constraint (SCHOOL.STUDENT_STAGE_FK) violated – child record found
Here i have a problem in my code when i want to delete a record:(student) from database and i know there is a related key but i cannot solve this problem i tried deleting student that on the stage …
Using columns from different tables to create one table
I am not sure how I can get this code to have three columns for each category (Portrait,Landscape, and Abstract). As of now, it only has one column and all three of these values computed values: …
Use ROLLUP with ORDER BY clause moves the Grand Total row from the bottom to the top
Here’s the schema: This works: However, when I add an ORDER BY clause, the Grand Total row moves from the bottom. I understand the first example has the rows sorted by Genre but I wonder why adding …