analytic-functions

I am trying to use Oracle 11g (11.1 in dev, 11.2 in production) for numeric analysis, specifically linear interpolation on a table which has three columns of interest: a timestamp, a deviceid, and value. The value columns holds data from the device (with id deviceid), taken at the time given in the timestamp. For example, this is bogus data, but it gives the idea: time | deviceid | value ----------------|------------|----------- 01:00:00.000 | 001 | 1.000 01:00:01.000 | 001 | 1.030 01:00:02.000 | 001 | 1.063 01:00:00.050 | 002 | 553.10 01:00:01.355 | 002 | 552.30 01:00:02.155 | 002 | 552.43

I made up this weird example trying to illustrate what I want to do (it's kind of stupid, but bear with me): Consider the following table: EMPLOYEES married , certified and religious are just boolean fields (in case of Oracle, they are of type NUMBER(1,0)). I need to come up with SQL that displays for each hire_year, count of married, certified and religious employees within the following salary categories: A SALARY > 2000 B SALARY BETWEEN 1000 AND 2000 C SALARY < 1000 Based on the above dataset, here is what I expect to get: So far, I've only come up with the following SQL: SELECT COUNT(CASE

I am writing a query to fetch records from a Oracle warehouse. Its a simple Select Query with joins on few tables and i have few columns to be aggregated. Hence i end up using Groupby on rest of the columns. Say I am picking some 10 columns and out of which 5 is aggregate columns. so i need to group by on the other 5 columns. I can even achieve the same by not doing a Groupby and using over (paritition by) clause on the each each aggregate column i want to derive. I am not sure which is better against a warehouse or in general. They are not the same. This will return 3 rows: select deptno,

I have the following data, composed of the A value, ordered by MM (month). The B column is computed as GREATEST(current value of A + previous value of B, 0) in a spreadsheet-like fashion. How can I compute B using a SQL Query? I tried using Analytic Functions, but I was unable to succeed. I know there is the Model Clause ; I found a similar example , but I don't know where to begin. I am using Oracle 10g, therefore I cannot use recursive queries. Here is my test data: MM | A | B -----------+--------+------ 2012-01-01 | 800 | 800 2012-02-01 | 1900 | 2700 2012-03-01 | 1750 | 4450 2012-04-01 |