Search Tutorials

Latest Questions

no driver
i am having problem connecting to DB2 database fro netbeans: program: import java.sql.*; import java.lang.*; i
min project with vb
i have do the min project with VB Frantend and oracle backend
Some additions for my previous question
This is the question I posted several hours ago: "I'm trying to write a program that has a text field for input, two bu
Writing a GUI program
Hello everyone! I'm trying to write a program that has a text field for input, two buttons and the output text area. A
How to display current date in textbox
Hi guys, I'm really need your help. This is my source code. <% if (status.equals("pending") && penanda==0)
Methods in Java
Hello. Currently i am involved in a group project and we have each been given a specific part of code to create our joi
how to record qvga video using j2me
hello if it is possible how i can record qvga video usin j2me?
how to record qvga video using j2me
hello if it is possible how i can record qvga video usin j2me?
streams
a program which illustrate the use of streams
runtime polymorphism
how run time polymorphism is achieved
All Questions...

Comments

SQL Aggregate Functions Where Clause
SQL Aggregate Functions Where Clause return you the aggregate sum of the records based on the condition specified in Where Clause condition.

SQL Aggregate Functions Where Clause

SQL Aggregate Functions Where Clause return you the aggregate sum of the records based on the condition specified in Where Clause condition. The Aggregate Function include Sum , Count, Max, Min and Average.

Understand with Example

The Tutorial illustrate an example from 'SQL Aggregate Functions Where Clause'. To understand and grasp the example we start with a table 'stu'. The create table keywords helps you to create a table Stu with given fieldnames and datatypes respectively.

Create Table Stu:

create table Stu(Id varchar(2), Name varchar(15), 
Class  varchar(10),sub_id varchar(2),marks varchar(3));

Insert Data into Stu:

The insert into is used to add the records or rows values to the table 'Stu'.

insert into Stu values(1,'Komal',10,1,45);
insert into Stu values(2,'Ajay',10,1,56);
insert into Stu values(3,'Rakesh',10,1,67);

insert into Stu values(1,'Komal',10,2,47);
insert into Stu values(2,'Ajay',10,2,53);
insert into Stu values(3,'Rakesh',10,2,57);

insert into Stu values(1,'Komal',10,3,45);
insert into Stu values(2,'Ajay',10,3,56);
insert into Stu values(3,'Rakesh',10,3,67);

insert into Stu values(1,'Komal',10,4,65);
insert into Stu values(2,'Ajay',10,4,56);
insert into Stu values(3,'Rakesh',10,4,37);

insert into Stu values(1,'Komal',10,5,65);
insert into Stu values(2,'Ajay',10,5,46);
insert into Stu values(3,'Rakesh',10,5,63);

Stu

+--------+----------+-----------+--------+-------+
| Id     | Name     | Class     | sub_id | marks |
+--------+----------+-----------+--------+-------+
| 1      | Komal    | 10        | 1      | 45    |
| 2      | Ajay     | 10        | 1      | 56    |
| 3      | Rakesh   | 10        | 1      | 67    |
| 1      | Komal    | 10        | 2      | 47    |
| 2      | Ajay     | 10        | 2      | 53    |
| 3      | Rakesh   | 10        | 2      | 57    |
| 1      | Komal    | 10        | 3      | 45    |
| 2      | Ajay     | 10        | 3      | 56    |
| 3      | Rakesh   | 10        | 3      | 67    |
| 1      | Komal    | 10        | 4      | 65    |
| 2      | Ajay     | 10        | 4      | 56    |
| 3      | Rakesh   | 10        | 4      | 37    |
| 1      | Komal    | 10        | 5      | 65    |
| 2      | Ajay     | 10        | 5      | 46    |
| 3      | Rakesh   | 10        | 5      | 63    |
+--------+----------+-----------+--------+-------+

Query:

The Query return the records that include id, name and sum of the marks as total marks from the name specified in Where Clause of table 'stu'.

select id, name, sum(marks) as 'total marks' 
from stu where name in('komal','ajay','santosh','rakesh') group by id;

Result

+------+--------+-------------+
| id   | name   | total marks |
+------+--------+-------------+
| 1    | Komal  | 267         |
| 2    | Ajay   | 267         |
| 3    | Rakesh | 291         |
+------+--------+-------------+

� View all related tutorials

Related Tags: sql c database security orm data form application io user sed format uri ai credentials app tab injection like for

Leave your comment:
Name:
Email:
URL:
Title:
Comments:
Enter Code:
	Note: Emails will not be visible or used in any way, and are not required. Please keep comments relevant. Any content deemed inappropriate or offensive may be edited and/or deleted. No HTML code is allowed. Line breaks will be converted automatically. URLs will be auto-linked. Please use BBCode to format your text.