Home headlines Detailed introduction and usage of decode function

Detailed introduction and usage of decode function

May 09, 2018 pm 03:32 PM
Detailed explanation of how to use Function introduction

本文主要介绍了oracle中decode函数的使用方法示例,还是比较不错的,希望大家学完能掌握decode函数的使用,赶紧一起来看一下吧。decode的几种用法1:使用decode判断字符串是否一样DECODE(value,if1,then1,if2,then2,if3,then3,...,else)含义为IF 条件=值1 THEN    RETURN(value 1)ELSIF 条件=值2 THEN    RETURN(value 2)    ......ELSIF 条件=值n THEN    RETURN(value 3)ELSE    RETURN(default)END IFsql测试select empno,decode(empno,7369,'smith',7499,'allen',7521,'ward',7566,&#

1. oracle中decode函数的如何使用

简介:本文主要介绍了oracle中decode函数的使用方法示例,还是比较不错的,希望大家学完能掌握decode函数的使用,赶紧一起来看一下吧。

2. PHP json_decode函数用法详解

Detailed introduction and usage of decode function

简介:本篇文章主要是对PHP json_decode函数进行了介绍,需要的朋友可以过来参考下,希望对大家有所帮助

3. php session_decode函数只要解码的功能,不想存入$_SESSION里头

简介:php session_decode函数只要解码的功能,不想存入$_SESSION里头

4. urlencode php urlencode与urldecode函数字符编码原理详解

简介:urlencode:urlencode php urlencode与urldecode函数字符编码原理详解:其原理就是把中文字符转换为十六进制并按某种规则进行字符串组合,实现字符的编码与解编码,保证URL数据传递过程中字符的完整性和兼容性,主要讨论中文字符的编码情况。 一,FireFox浏览器编码中文字符在Firefox浏览器下如果输入中文字符,将会自动实现URL编码,如下 按下Enter键前 按下Enter键后二,urlencode()函数原理 urlencode()函数用于编码URL字符串,

5. vbscript.encode 加密ENCODE或解密DECODE函数

简介:vbscript.encode:vbscript.encode 加密ENCODE或解密DECODE函数: /** * $string 明文或密文 * $operation 加密ENCODE或解密DECODE * $key 密钥 * $expiry 密钥有效期 */  function  authcode ( $string ,  $operation  =  'DECODE' ,  $key  =  '' ,  $expiry  =  0 ) { // 动态密匙长度,相同的明文会生成不同密文就是

6. php中json_decode函数要注意的问题

简介:php中json_decode函数要注意的问题

7. utf8_encode()与utf8_decode函数_PHP教程

简介:utf8_encode()与utf8_decode函数。utf8_encode() 函数把 iso-8859-1 字符串编码为 utf-8。 utf8_encode(string); */ $str=你好,世界!;//定义字符串 $result=utf8_decode($str);//进行编码转换 echo

8. php5.2以下版本无json_decode函数的解决方法_PHP教程

简介:php5.2以下版本无json_decode函数的解决方法。今天写代码的时候,需要用到json_decode函数,发现php5.2以前的版本没有集成这个函数,不过我们可以通过自定义函数实现。 复制代码 代码如

9. PHP中遇到BOM、<feff>编码导致json_decode函数无法解析问题_PHP教程

简介:PHP中遇到BOM、<feff>编码导致json_decode函数无法解析问题。昨天同事遇到一个奇怪的问题,就是以下代码,无法通过JSON校验,也无法通过PHP的json_decode函数解析。 复制代码 代码如下: [ { "title": "",

10. PHP json_decode函数详细解析_PHP教程

Detailed introduction and usage of decode function

简介:PHP json_decode函数详细解析。一、函数简介 1、此函数有四个参数,一般在使用时会用到前两个,具体的参数可以看手册。 2、第一个参数是json格式的字符串,第二个参

11. php自定义urlencode,urldecode函数实例,urlencodeurldecode_PHP教程

简介:php自定义urlencode,urldecode函数实例,urlencodeurldecode。php自定义urlencode,urldecode函数实例,urlencodeurldecode 本文实例讲述了php自定义urlencode,urldecode函数。分享给大家供大家参考。具体如下: /

12. php自定义urlencode,urldecode函数实例_PHP教程

简介:php自定义urlencode,urldecode函数实例。php自定义urlencode,urldecode函数实例 这篇文章主要介绍了php自定义urlencode,urldecode函数,实例分析了php字符串转码的技巧,具有一定参考借鉴价

13. OpenCart json_decode函数中存在远程PHP代码执行漏洞

简介:OpenCart json_decode函数中存在远程PHP代码执行漏洞

14. PHP中GZIP解压 自定义gzdecode函数的使用

简介:在做一个微博项目中,发布视频需要解析外链获取视频地址信息, 用的是PHP的curl 获取内容,正则解析。  后来测试发现土豆的视频无法解析,其他的都好。 经过反复测试,发现是土豆用了GZIP压缩,于是用gzdecode反解压。 发现本地的wamp 2.1 zlib 库, 网上cn.php.net 搜了解决办法,自定义个函数用gzinflate实现。 下面是代码 if (!fu

15. utf8_encode()与utf8_decode函数

简介:utf8_encode()与utf8_decode函数。utf8_encode() 函数把 iso-8859-1 字符串编码为 utf-8。 utf8_encode(string); */ $str=你好,世界!;//定义字符串 $result=utf8_decode($str);//进行编码转换 echo

16. php5.2以下版本无json_decode函数的解决方法

简介:php5.2以下版本无json_decode函数的解决方法。今天写代码的时候,需要用到json_decode函数,发现php5.2以前的版本没有集成这个函数,不过我们可以通过自定义函数实现。 复制代码 代码如

17. PHP中遇到BOM、<feff>编码导致json_decode函数无法解析问题

简介:PHP中遇到BOM、<feff>编码导致json_decode函数无法解析问题。昨天同事遇到一个奇怪的问题,就是以下代码,无法通过JSON校验,也无法通过PHP的json_decode函数解析。 复制代码 代码如下: [ { "title": "",

18. php自定义urlencode,urldecode函数实例,urlencodeurldecode

简介:php自定义urlencode,urldecode函数实例,urlencodeurldecode。php自定义urlencode,urldecode函数实例,urlencodeurldecode 本文实例讲述了php自定义urlencode,urldecode函数。分享给大家供大家参考。具体如下: /

19. php custom urlencode, urldecode function instance

Introduction: php custom urlencode, urldecode function instance. PHP custom urlencode, urldecode function examples. This article mainly introduces PHP custom urlencode, urldecode functions. The examples analyze the PHP string transcoding skills, and have certain reference value.

20. Usage of decode function in oracle

Introduction: The oracle function library provides many useful functions, such as nvl, sign, round, etc., among which There are many functions, and the function with greater functions is decode. The usage of this function is as follows: ​decode(expression, condition 1, result 1, condition 2, result 2,...) There are several conditions and results depending on the individual, such as decode(sign(100-20),1,20,-1,100) means that when (100-20) is greater than zero, the result is 20, and when

##21. The use of sign function and decode function in Oracle

Detailed introduction and usage of decode function

##Introduction: In logic programming, it is often used Go to If ndash; Then ndash;Else for logical judgment. In the syntax of DECODE, this is actually such a logical process. Its syntax

22.

Detailed explanation of Oracle Decode function

Detailed introduction and usage of decode function##Introduction: The DECODE function is one of the powerful functions of ORACLE PL/SQL. Currently, only ORACLE's SQL provides this function. The SQL implementations of other database manufacturers do not yet have this function

23.

Using SAS macros to implement the decode function in Oracle

Detailed introduction and usage of decode function##Introduction : The DECODE function is one of the powerful functions of ORACLE PL/SQL. Currently, only ORACLE's SQL provides this function. The SQL implementations of other database manufacturers do not yet have this function.

24. Hive’s UDF implementation is similar to Oracle’s decode function

Detailed introduction and usage of decode function Introduction: Oracle’s decode function syntax: DECODE(value,if1,then1,if2,thne2,if3,then3,...else). The first issue involved is the dynamization of input parameters, decode function

25. Introduction to the syntax and usage techniques of Oracle DECODE function

Introduction: The decode() function is one of the most powerful functions in ORACLE PL/SQL. Currently, only ORACLE's SQL provides this function, and other database manufacturers' SQL implementations do not yet have this function. The DECODE function is one of the most powerful functions in ORACLE PL/SQL. Currently, only ORACLE's SQL provides this function. The SQL implementations of other database manufacturers have not yet

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