Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Oracle SQL Functions

Posted on 2010-08-25
4
Medium Priority
?
2,524 Views
Last Modified: 2013-12-19
What are the major differences  between,
LEAST - MIN
GREATEST - MAX
SQL functions.
Thanks
0
Comment
Question by:D-pk
  • 3
4 Comments
 
LVL 74

Expert Comment

by:sdstuber
ID: 33523775
MIN and MAX are aggregates/analytics,  they are used to find the smallest or largest value in a single column across multiple rows

input is one column/constant

LEAST/GREATEST compare multiple values within a single row
input is multiple columns/constants
0
 
LVL 74

Accepted Solution

by:
sdstuber earned 500 total points
ID: 33523796
0
 
LVL 74

Assisted Solution

by:sdstuber
sdstuber earned 500 total points
ID: 33523826
also, you can use LEAST/GREATEST in pl/sql

v_my_number := LEAST(3,1,2);   --  should set variable to 1

v_my_other_number := GREATEST(2,3,1);  -- should set variable to 3

you can't do this with MIN/MAX because they are SQL functions only usable across a set of rows
0
 

Author Closing Comment

by:D-pk
ID: 33525504
Thanks sdstuber
0

Featured Post

Get your Conversational Ransomware Defense e‑book

This e-book gives you an insight into the ransomware threat and reviews the fundamentals of top-notch ransomware preparedness and recovery. To help you protect yourself and your organization. The initial infection may be inevitable, so the best protection is to be fully prepared.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
In part one, we reviewed the prerequisites required for installing SQL Server vNext. In this part we will explore how to install Microsoft's SQL Server on Ubuntu 16.04.
Via a live example, show how to take different types of Oracle backups using RMAN.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

972 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question