Plzzzzzzzzzzzz help

Question

Display dept id along with name of all employees in that department
The output will be as such:
Dept ID Employee
10 Michael, Arnold
20 Bob,Maria,Peter
2) Display name, salary and running total salary.
The output will be as such:
Name Salary Running Total Salary
Bob 8000 8000
Maria 12000 20000
Peter 16000 36000
3) Display name of first employee, third employee, and so forth.
plzzzzzzzzzzzzz i hav no idea how to solve this query......................plz do the needful asap

Answer 1

Hi,
Welcome to the forum!
Whenever you have a problem, please post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) from all tables involved.
Also post the results you want from that data, and an explanation of how you get those results from that data, with specific examples.
If you can show the problem using commonly available tables (such as those in the scott or hr schemas) then you don't need to post any sample data; just the results and the explanation. For example, the scott.emp table has deptno, ename and sal columns. They're not exactly the same as your table, but if you see a soltuion that works for scott.emp, adapting it to your table will be trivial.
Always say which version of Oracle you're using (for example, 11.2.0.2.0).
See the forum FAQ {message:id=9360002}
982800 wrote:
Display dept id along with name of all employees in that department
The output will be as such:
Dept ID Employee
10 Michael, Arnold
20 Bob,Maria,Peter
......This does look a lot like homework, so I'll try not to ruin it for you.
This problem involves String Aggregation . Oracle-Base has a very good page showing several ways to do this, appropriate for different Oracle versions (what is yours?) and different requirements (what are yours?).
2) Display name, salary and running total salary.
The output will be as such:
Name Salary Running Total Salary
Bob 8000 8000
Maria 12000 20000
Peter 16000 36000
.......Whenever you hear "running" think "analytic".
This is a job for the analytic SUM function. All the built-in functions, including SUM, are documented in the SQL Language manual.
3) Display name of first employee, third employee, and so forth.I'm not sure I understand what you want here. This is one reason why you need to post some sample data, and the results you want from that data.
Perhaps you need the analytic ROW_NUMBER function to tell you that this is row 1, 2, 3, .... Given that number, the MOD function can tell you if it's an even or odd number, and you can use a WHERE clause to show only odd-numebred rows.
plzzzzzzzzzzzzz i hav no idea how to solve this queryDo you mean "these queries"? That is, do you want 3 different queries, or 1 big query that answers all 3 questions? If you want 1 big query, what is the exact output you want?
If you'd like help for any of these, post your best attempt, and a specific question.
......................plz do the needful asapIt's quite rude to say things like that to the people who are volunteering to help you. Don't use words (or abbreviations) like "asap" or "urgent" on this forum. (Be careful using them anywhere.)