line function

Matlab Contour Line Function Contour Contour is the contour drawing functionI did not use this function, just refer to help to translate the above English, if there are errors, please put forward.Contour (z) draws the contour line

Single-line function round () Roundingtrunc () InterceptABS () Seek absolute valuemod () Find remainderLength () lengthUpper () capitalize all conversion bitsLower () convert all to lowercaseInitcap () convert all letters to uppercaseLpad ()

? Different types of functions in SQL? Use characters, numbers, dates, and data in a SELECT statementConversion Functions?using conditional Expressions Two types of SQL functionsSingle-line function:? Manipulating Data Objects? Accept parameter

Main Line function for linux kernel x86 startup, kernelx86Arch/x86/boot/header. S --> _ start --> calll mainarch/x86/boot/main. c --> main --> go_to_protected_modearch/x86/boot/pm. c --> go_to_protected_mode -->

We are debugging largeProgramYou want to know the current running status and Compilation Time. I want to print the row number and function of the current program running. Now I have a more convenient method. As follows: Printf ("\ r \ n (" _ date _

In the database in order to facilitate user development, often provide a series of support functions, the use of these functions can be used for data processing. One, String functions         String functions can be processed for strings in the

lower--Convert to lowercaseupper--Convert to uppercaseinitcap--First Letter Capitalconcat--Connection Characterssubstr--Intercept characterslength/length--Get string Length (bytes length)instr--where the specified character is locatedlpad/rpad--Left/

To_char (string \ column, format string): Turns a date or number into a string displayNote: The time string or the time type column and the format string must be one by one corresponding, if more than the relevant characters will be error (in

①upper: Converts the input string into an uppercase string;②lower: Converts the input string into a lowercase string;③initcap: initial capital letter;④length: Find out the length of the string;⑤replace (' String ', ' replace before ', ' replace '):

1. Show Dname and Loc intermediate-delimitedSelect Dname | | ' -' | | Loc from Dept;2. Fill the department name to the left as 10 bitsSelect Lpad (dname,10) from dept;3. Replace the employee name's ' s ' with ' s 'Select replace (ename, ' s ', ' s ')

Add or subtract a number on a date the result is still a date.　　Two date subtraction returns the number of days between dates. You can add or subtract hours from the date with the number except 24来.1Sql> SelectSysdate, Sysdate+2 fromdual;2

1. Character functionsSelect lower (' Hello World ') turns lowercase, upper (' Hello World ') to uppercase, Initcap (' Hello World ') capitalized from dual;2. Character control functionsSubstr (A, B) takes the Select sub (' 123457890 ', 2) substring

This paper summarizes the function of the following character function and how to use it: functionDescription ASCIIReturns the decimal value of the corresponding character CHRgives the decimal return character CONCATStitching two strings, with | |

Examples of common methods for single-line functions are shown:--[1] character functions--Query the names of all employees in lowercase, uppercase, and uppercase letters--select ename from emp;--lower () lowercase upper () uppercase Initcap () first

One, character functions 1. Casing control function --lower: Make the letter lowercase----upper: Make the letter uppercase----INITCAP: Make the first letter of the character uppercase--select lower (' ABC '), Upper (' sql '), Initcap (' HeLlo

One, single-line function1. Definition: A function that returns a value for each row of records when querying against a table or view.2. Use: For SELECT statements, where conditions3. Classification:numeric function Number FunctionsCharacter

round--Rounding functiontrunc--truncation functionmod--to find the remainder functionRound and trunc can manipulate dates in addition to manipulating numbers.Demo1Sql> Select round(45.926,2),round(45.926,1),round(45.926,0),round(45.926),round(45.926,

Oracle data type conversions: Show conversion Box implicit conversionsOracle Auto-Complete conversionAn explicit conversion is requiredl use double quotation marks to add characters to a date1Sql> SelectTo_char (Sysdate,'YYYY-MM-DD Day') fromdual;2

Single-line functionTransform only one row returns a single result for each rowSingle-line functions divide characters, values, dates, conversions, universalCharacter functions: Casing control functions, character control functionsCapitalization

This article mainly describes the magic constants _ FILE _, _ LINE _ ,__ FUNCTION __. if you need them, you can refer to a simple and practical example. NameDescription _ FILE _Current file name _ LINE _Current row number _ FUNCTION _Current