olap functions

JavaScript ------ functions (general functions, dynamic functions, anonymous functions) Function I. general functions 1. format: Function Name (formal parameter ...) { Execute the statement; Return value; } A function is the encapsulation body of multiple execution statement

javascript------Functions (general functions, dynamic functions, anonymous functions) function First, the general function 1. Format: Function name (formal parameter ...) { Execute the statement; return value; } A function is a wrapper for

Label: 2 --Mathematical Functions 3 Select CEILING(COUNT(*)/5.0) fromNews--take the smallest integer greater than the result 4 Select Floor(COUNT(*)/5.0) fromNews--take the largest integer less than the result 5 Select SQRT(2)--Value Open Square 6 Select ROUND(3.45645,2) 7 Select ABS(-5): The absolute value function, which takes the absolute value of this number, can be applied to the addition and subtraction of some of the more chaotic values in the

FunctionWhen the return value of a function is the function name of another function, only the memory address of the function is returned, and the scope of the function does not change.Name ='WINSODM'defTest (): Name='XL' Print('In the test')deftest1 ():Print('In the test1') returnTestres=test1 () res ()#The result is:Name ='XL''In the test'#The test returned here runs after the value of the variable name in test, not the name= ' winsdom ' of all variables.anonymous functionsLambda keyword

', title) from News--the query target content does not appear in the specified area and appears in the location of the Select REPLACE (Title, ' China ', ' us ') from news--the replacement string. Example searches for keywords and significantly selects STUFF (title,3,4, ' Chine ') from News 22 other functions of the 1 Select CEILING (RAND () *10)--randomly generated numbers between The range of random numbers can be multiplied by the number of select

--------------------------------------------------------------------------------Oracle. World typ = 1 Len = 12 characterset = zhs16gbk: W, O, R, L, d 54. empty_blob () and empty_clob ()Both functions are used to initialize fields of the big data type. 55. GreatestReturns the maximum value in a group of expressions, that is, compare the encoding size of characters.SQL> select greatest ('A', 'AB', 'ac') from dual;Gr--ACSQL> select greatest ('Ah', 'an',

Single-record functions in SQL 1. ASCIIReturns the decimal number corresponding to the specified character;SQL> select ascii ('A') A, ascii ('A') A, ascii ('0') zero, ascii ('') space from dual;A ZERO SPACE------------------------------------65 97 48 322. CHRReturns the corresponding characters;SQL> select chr (54740) zhao, chr (65) chr65 from dual;ZH C---Zhao3. CONCATConnect two strings;SQL> select concat ('010-', '000000') |' to 23' Gao Qian competi

), round (123.45) from dual; Round (123.456,2), said to keep two digits after the decimal point, if-2, is to represent the first two decimal places. 123.46 100 123 123 4.select trunc (1234.5678, 2)from dual;Remove Trunc () 1234.56 Common date Functions:1. You can add and subtract a value directly on the date data that represents the number of days before and after the date.2.SYSDATE: Get the current system time3.months_between: Gets the number of

The project was completed years ago, and there are a lot of small questions to look back at. It's a little messy. or from the need to talk about.First, the demand for each industry is different. Difficult to unify. In general, these are the areas1.

After the Oracle database has been upgraded to 11 GB recently, some problems have occurred. I began to find some things that need to be summarized. Every time I thought: next time, when I build my own data warehouse, be sure to pay attention to

Methods for accessing data mining databases on other machines through the network:Perform the following configuration on the data mining database machine:1. Install xmlasdk. MSI. (Download from Microsoft website)2. Set the directory under the

OLAPThe basic multidimensional analysis operations include drilling (drill-up and drill-down), slice, dice, and rotation. Drilling:Is to change the level of the dimension and the granularity of the analysis. It includes drill-down and drill-up/roll-

This article is not ready to introduce all of the Oracle functions, in the current situation, I do not have this time, need to learn too much, to spend most of the time on learning to use the technical aspects:), so if you are ready to learn all the Oracle functions of friends, or to focus on: Oracle SQL Reference official documents are more reliable. This article will cover a number of

Ods-bi in the construction of ETL to occupy 1/3 of the time, deep feelings. The modeling of BI, from the physical data layer, the logical data layer, the business logic layer at all levels, there are many automated tools to handle.However, the

Many bugs of previous versions have been modified in this version. The chart part uses the latest version 2.0.4 of visifire to solve the problem of chart switching. You can select only one dimension for query. Some modifications were made on the

Common functions that cannot be declared as virtual functions are: ordinary function (non-member function), static member function, inline member function, constructor, friend function.1. Why does C + + not support ordinary functions as virtual functions?The normal function (non-member function) can only be overload, c

Common functions that cannot be declared as virtual functions are: ordinary function (non-member function), static member function, inline member function, constructor, friend function.1. Why does C + + not support ordinary functions as virtual functions?The normal function (non-member function) can only be overload, c

Original: http://www.cnblogs.com/xudong-bupt/p/3570304.html1. Virtual function (impure virtual)The virtual function of C + + has the function of " runtime polymorphism ", which provides the implementation of virtual function in the parent class, and provides the default function implementation for subclasses .　　Subclasses can override the virtual functions of the parent class to implement the specialization of subclasses.The following is a virtual fun

In the face of C + + template, need to pay attention to, because the template of the complexity of a lot of circumstances, so the best way to learn the template I personally think that is used to learn, do not use to see all kinds of odd door strange skills, because you even see, very difficult to understand the template to achieve internal, including meta-programming AH what, But I believe very little in the work, and soon you will forget it, so, for the template, we can take the idea of where

Common functions that cannot be declared as virtual functions include common functions (non-member functions), static member functions, inline member functions, constructor functions, a