db2 sum function

The previous article mentioned in the DB2, can through Sysibm.sysdummy1, SYSIBM. Dual gets the value in the register, or you can get the value in the register by using the VALUES keyword. In this article, we'll look at these functions directly using the VALUES keyword.1.CURRENT Date Gets the current date, the current time gets the timestamp, current time stamp (including year, month, day, hour, minute, second), year () gets years; month () Gets the da

Sum over analysis function usage First, the table is as follows: A B C D 1 A 1 2 3 2 B 1 3 4 3 C 2 4 5 4 D 2 5 6 5 E

The error in calculating the sum function of MySQL 4.0.18 for NT is found.Mysql> Create Table CH3 (ID char (32), V decimal (18, 2 ));Query OK, 0 rows affected (0.12 Sec) Mysql> insert into CH3 select * From vc2;Query OK, 8192 rows affected (1.24 Sec)Records: 8192 duplicates: 0 Warnings: 0 Mysql> select max (v) from CH3;+ ------------- +| Max (v) |+ ------------- +| 1, 99999999.99 |+ ------------- +1 row in

Sum is a very practical function in python, but pay attention to its usage. I used it for the first time: ssum (, 3) the result is tragic. actually, the sum () parameter is... sum is a very practical function in python, but pay attention to its usage. When I first used it, I

SQL GROUP BY instance We have the following "Orders" table: O_Id OrderDate OrderPrice Customer 1 2008/12/29 1000 Bush 2 2008/11/23 1600 Carter 3 2008/10/05 700 Bush 4 2008/09/28 300 Bush 5 2008/08/06 2000 Adams 6 2008/07/21 100 Carter Now we want to find the total amount (total order) for each customer ). We want to use the group by statement to combine the custom

The syntax for the SUM function is: The code is as follows Copy Code SELECT SUM (expression)From tablesWHERE predicates; An expression can be a numeric field or a formula. A simple example For example, you might want to know that the total salary of all employees is more than USD and the salary is 25,000/year

Recently encountered a test demand, the use of online analytical processing (OLAP), is summarized in the record, but also hope to help people with related problems.1. The test environment is DB2, through ETL (data extraction, data transformation, data loading) technology to load the data source data into the target data warehouse.2. Requirements approximate meaning: Verify that the order containing the product encoding is loaded from the data source i

Q: Create Table Test (ID int, name varchar (20), quarter int, profile INT)Insert into test values (1, 'A', 1,1000)Insert into test values (1, 'A', 2,2000)Insert into test values (1, 'A', 3,4000)Insert into test values (1, 'A', 4,5000)Insert into test values (2, 'B', 1,3000)Insert into test values (2, 'B', 2,3500)Insert into test values (2, 'B', 3,4200)Insert into test values (2, 'B', 4,5500)Select * from testSelect ID, name,[1] as "first quarter ",[2] as "Quarter 2 ",[3] as "three quarters ",[4]

Label:Sum is the standard SUM function in an SQL statement, and the SUM function returns null if there are no records that match the criteria. But in most cases, we want it to return 0 instead of NULL if the condition record is not met, so we can use the following method, for example: SELECT COALESCE (

A=sum (A)% column sumB=sum (a,2)% row sumC=sum (A (:))% matrix summationSuppose A is a matrix:Sum (a) sums the numbers in a column with the object for each of the columns in matrix A.SUM (a,2) sums the numbers in a row with each behavior object of matrix A.A (:, 1) is the first column of the matrixA (1,:) is the first line of the Matrix, and so on. By the followi

:00:00 ') DATE (' 2002-10-20 ') DATE (' 10/20/2002 ') Time (' 12:00:00 ') Time (' 12.00.00 ') The TIMESTAMP (), DATE (), and time () functions accept more than one format. The above formats are just examples, and I'll take it as an exercise for readers to discover other formats themselves. Sometimes, you need to know the difference between two time stamps. To do this, DB2 provides a built-in function name

How to use the Sum function in Excel: As shown in figure, I have prepared a list of the team members ' scores. What we're going to do is figure out what the sum is in the red box in the picture, which is going to use the SUM function. As shown in the figure, start

Calculation 2 Time limit:2000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 2548 Accepted Submission (s): 1064Problem Description Given A positive integer N, your task is to calculate the sum of the positive integers less than N whi CH is not coprime to N. A is said to being coprime to B if A, B share no common positive divisors except 1.Input for each test case, there was a line containing a positive integer N (

Label:Usually we have several commonly used aggregate functions to calculate the data for a table in a database1, Count: counting2. Sum: Calculate sum3, Avg: Averaging4, Max: Take maximum value5, min: Take the minimum value6, IsNull: When the return data is empty, the default setting is 07, COALESCE: When the return data is empty, the default setting is 01. Use of CountHere is all the data for a student table1) Calculate the number of data in the tabl

Array_sum () of the php array function sequence-calculates the sum of array element values. Array_sum () defines and uses the array_sum () function to return the sum of all values in the array. If all values are integers, an integer is returned. If one or more of these values are floating point numbers Array_sum () def

Generally use the SUM function sum, but I do a lot of salary financial statements, the use of the SUM function is cumbersome. To enter the function first, click the mouse to select the cell that participates in the calculation, an

In the ETL project often encounter such a situation:A column in the target table originates from a different source data table A,b,c. If no valid data in A is taken from B, if none in B is taken from C, then set to null if none is in C.In situations like this, sometimes the first thought is the case and then else end, which can solve the problem, but it's still more complicated and error-prone, especially when someone looks at the SQL you're writing.So is there a better way?That's the COALESCE f

#!/usr/bin/env python #-*-coding:utf-8-*- # The most common usage of sum calculates the summation and print of a sequence ( sum ([1, 2, 3])) # 6 # sum The function prototype is sum (iterable, start), and can also give an initial value of print (

After the avg (), count (), min () max (), sum () functions of mysql are familiar with the simplest SQL statements, do you think the cmd form is particularly appealing to tao Huan (yan )! Of course, we have a more intuitive and easy way to use SQL statements! That's visual edite )! Currently, many third-party visual operations are available. I use navicat for mysql. You can also use other third-party plug-ins. Today, after basic SQL operat

SqlSUM () function SUM () functionThe sum () function returns the total number of numeric columns.SQL SUM () syntaxSELECT SUM from table_name; Demo DatabaseIn this tutorial, we will use the Runoob sample database.The