I have the following query: I want to add the following conditions: As a result, the query looks as follows: But this query gives me the erro ...

O community, do you know how I could select the department_ID, and lowest salary of the department with the highest average salary? Or how to eliminat ...

I'm using Oracle PL/SQL. I have a timestamped table T, and I want to set a row's value for column A to be the same as that of the previous row, if th ...

The follow query is returning an error at column 143: "ORA-00934: group function is not allowed here" It works fine if I take out the last line - A ...

I'm using Oracle. I'm trying to compose something like this: So, I am trying to use a result of grouping inside an inner query. But I am getting th ...