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求Linux相关英文文献，最好有中文翻译的
Linux (also known as GNULinux) is a Unix-like computer operating system. It is one of the most prominent examples of op
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mysql自定义函数怎么写？
mysql>CREATE FUNCTION HelloWorld4()->RETURNS VARCHAR(20)->BEGIN-> RETURN 'Hello World!&
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mysql自定义函数怎么写？
mysql>CREATE FUNCTION HelloWorld4()->RETURNS VARCHAR(20)->BEGIN-> RETURN 'Hello World!&
