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REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

... # # all_langs : All languages # # Specify value as the following to select any of the languages. # Example : SELECTED_LANGUAGES=en,fr,ja # # Specify value as the following to select all the languages. # Example : SELECTED_LANGUAGES=all_langs #---------------------------------------------...
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Creating a daemon in Linux

...nlog(3), closelog(3) And here is a more general function, int daemonize(char* name, char* path, char* outfile, char* errfile, char* infile ) { if(!path) { path="/"; } if(!name) { name="medaemon"; } if(!infile) { infile="/dev/null"; } if(!outfile) { outfile="/dev/null"; } if(!e...
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How do I filter ForeignKey choices in a Django ModelForm?

...tions = super(FrontEndAdmin, self).get_actions(request) if 'delete_selected' in actions: del actions['delete_selected'] return actions prevents delete permission def has_delete_permission(self, request, obj=None): return False filters objects that can be ...
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How to prevent gcc optimizing some statements in C?

...ore by using the volatile type qualifier. // Assuming pageptr is unsigned char * already... unsigned char *pageptr = ...; ((unsigned char volatile *)pageptr)[0] = pageptr[0]; The volatile type qualifier instructs the compiler to be strict about memory stores and loads. One purpose of volatile is...
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Generic TryParse

... answered Jul 1 '11 at 22:11 Charlie BrownCharlie Brown 79755 silver badges22 bronze badges ...
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Make a float only show two decimal places

... IN objective-c, if you are dealing with regular char arrays (instead of pointers to NSString) you could also use: printf("%.02f", your_float_var); OTOH, if what you want is to store that value on a char array you could use: sprintf(your_char_ptr, "%.02f", your_float_va...
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UTF-8 byte[] to String

...Look at the constructor for String String str = new String(bytes, StandardCharsets.UTF_8); And if you're feeling lazy, you can use the Apache Commons IO library to convert the InputStream to a String directly: String str = IOUtils.toString(inputStream, StandardCharsets.UTF_8); ...
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How do you use the Immediate Window in Visual Studio?

...tMessage() "hello" A very common way to see the value of a method is to select the method name of a class and do a ‘Add Watch’ so that you can see its current value in the Watch window. However, once again, the object needs to be instantiated and in scope for a valid value to be displayed. ...
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C compile error: “Variable-sized object may not be initialized”

... This gives error: int len; scanf("%d",&len); char str[len]=""; This also gives error: int len=5; char str[len]=""; But this works fine: int len=5; char str[len]; //so the problem lies with assignment not declaration You need to put value in the following way: s...
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?

...ction table Example queries: -- Getting all students for a class: SELECT s.student_id, last_name FROM student_classes sc INNER JOIN students s ON s.student_id = sc.student_id WHERE sc.class_id = X -- Getting all classes for a student: SELECT c.class_id, name FROM s...