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Oracle Differences between NVL and Coalesce

...om dual; would work as NVL will do an implicit conversion of numeric 10 to string. select coalesce('abc',10) from dual; will fail with Error - inconsistent datatypes: expected CHAR got NUMBER Example for UNION use-case SELECT COALESCE(a, sysdate) from (select null as a from dual union ...
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How can I get a file's size in C++? [duplicate]

...of the c runtime library on Windows, Mac and Linux. long GetFileSize(std::string filename) { struct stat stat_buf; int rc = stat(filename.c_str(), &stat_buf); return rc == 0 ? stat_buf.st_size : -1; } or long FdGetFileSize(int fd) { struct stat stat_buf; int rc = fstat(fd...
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How are strings passed in .NET?

When I pass a string to a function, is a pointer to the string's contents passed, or is the entire string passed to the function on the stack like a struct would be? ...
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浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术

浅析为什么char类型的范围是 -128~+127在C语言中, signed char 类型的范围为-128~127,每本教科书上也这么写,但是没有哪一本书上(包括老师)也不会给你为什么是-128~127,这...在C语言中, signed char 类型的范围为-128~127,每本教科书上...
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How to print Boolean flag in NSLog?

...orm: condition ? result_if_true : result_if_false Substitute actual log strings accordingly where appropriate. share | improve this answer | follow | ...
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How to convert comma-delimited string to list in Python?

Given a string that is a sequence of several values separated by a commma: 7 Answers 7...
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string.split - by multiple character delimiter

i am having trouble splitting a string in c# with a delimiter of "][". 4 Answers 4 ...
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How to declare variable and use it in the same Oracle SQL script?

... Is it possible to concatenate variables+strings? – Ecropolis Jun 18 '14 at 15:01 @E...
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Is it possible to apply CSS to half of a character?

...nload Zip | Half-Style.com (Redirects to GitHub) Pure CSS for a Single Character JavaScript used for automation across text or multiple characters Preserves Text Accessibility for screen readers for the blind or visually impaired Part 1: Basic Solution Demo: http://jsfiddle.net/arbel/pd9yB/...
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How do I split a string so I can access item x?

Using SQL Server, how do I split a string so I can access item x? 44 Answers 44 ...