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创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...如果将此表的主键增加字段并ENABLE后操作，又说：“ORA-23412: 主表的主键列已更改”。
但有一个奇怪的现象：在数据库B上我们也建立过物化视图，它却在此表的主键disable之后，还是正常运行。
我们介绍一下在数据库B上的创...
Should I use an exception specifier in C++?
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edited Jun 23 '12 at 12:55
Marc Mutz - mmutz
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What does int argc, char *argv[] mean?
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673
argv and argc are how command line arguments are passed to main() in C and C++.
argc will be th...
Creating C formatted strings (not printing them)
...unction.
Example:
// Allocates storage
char *hello_world = (char*)malloc(13 * sizeof(char));
// Prints "Hello world!" on hello_world
sprintf(hello_world, "%s %s!", "Hello", "world");
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impro...
Check if something is (not) in a list in Python
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532
The bug is probably somewhere else in your code, because it should work fine:
>>> 3 n...
How do I get the row count of a pandas DataFrame?
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1387
You can use the .shape property or just len(DataFrame.index). However, there are notable perfo...
Importing modules from parent folder
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edited Jan 12 '17 at 18:30
MERose
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answered Apr...
互联网数据造假盛行 浮夸风伤害创新经济 - 资讯 - 清泛网 - 专注C/C++及内核技术
...疾首”。
无独有偶，联想集团董事长兼CEO杨元庆在今年3月同样公开指出，IT产业与互联网产业存在很大诚信问题，出现严重的数据造假，甚至出现“税前营业额”这种奇怪的名词。
数据造假乱象
本应艰辛励志的创业故事开始...
Get absolute path of initially run script
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35
The correct solution is to use the get_included_files function:
list($scriptPath) = get_includ...