A. An EMP table is created if a table does not exist. Otherwise, if the EMP table is appended with the loaded data.
B. The SQL* Loader data file myfile1.dat has the column names for the EMP table.
C. The SQL* Loader operation fails because no record terminators are specified.
D. Field names should be the first line in the both the SQL* Loader data files.
E. The SQL* Loader operation assumes that the file must be a stream record format file with the normal carriage return string as the record terminator.
第1题:
YouwantanASMinstancetomanagethefilesofyourdatabase.Toachievethisobjective,youspecifythefollowingparametersintheparameterfileofthedatabase:INSTANCE_TYPE=RDBMSDB_NAME=PRODLARGE_POOL_SIZE=8MBDB_BLOCK_SIZE=4KLOG_ARCHIVE_DEST=+dgroupALOG_ARCHIVE_FORMAT="$ORACLE_SID_%s_%t.%t"DB_CREATE_FILE_DEST=+dgroupACOMPATIBLE=10.1.0.2.0CONTROL_FILES=+dgroupAWhichparameterwouldbeignoredwhilestartinguptheinstanceforthedatabasePROD?()
A.DB_BLOCK_SIZE
B.CONTROL_FILES
C.LARGE_POOL_SIZE
D.LOG_ARCHIVE_DEST
E.LOG_ARCHIVE_FORMAT
F.DB_CREATE_FILE_DEST
第2题:
IMPORT和SQL*LOADER 这2个工具的不同点
第3题:
A.Thecontrolfilecangrowinsize.
B.ThecontrolfilecanstoreRMANscripts.
C.CONTROL_FILE_RECORD_KEEP_TIMEdeterminesretentiontimeforRMANrecords.
D.TheRMANcatalogcanexistsolelyinthecontrolfileofthetargetdatabase.
第4题:
使用VC6打开考生文件夹下的工程test14_3,此工程包含一个test14_3.cpp,其中定义了类File,但类的定义并不完整。请按要求完成下列操作,将程序补充完整。
(1)完成构造函数的定义,使数据成员filename,content指向为空。请在注释“//**1**”之后添加适当的语句;
(2)完成函数set_contents的定义,该函数为content申请新的空间来存储new_content的内容,成功返回true,失败返回false。请在注释“//**2**”之后添加适当的语句;
(3)完成成员函数copy(File & source,File & target)的定义,该函数实现将source的内容拷贝至target的功能,注意必须使用已经定义的成员函数来实现。请在注释“//**3**”之后添加适当的语句:
(4)完成析构函数的定义,要求释放content指向的空间。请在注释“//**4**”之后添加适当的语句。
输出结果如下:
file2:file1 contents
file2:file2 contents
注意:除在指定的位置添加语句外,请不要改动程序中的其他语句。
源程序文件testl4—3.cpp清单如下:
include<iostream.h>
include<string.h>
class File{
private:
char file_name[64];
char*contents;
public:
File(char*filename)
{
// ** 1 **
};
File::~File()
{
// ** 4 **
}
void printfile(){cout<<file_name<<":"<<contents<<endl;)
friend bool copy(File & source,File & target);
bool set_contents(char * new_contents);
};
bool File::set_contents(char*new_contents)
{
// ** 2 **
if(contents==NULL)
return false;
strcpy(contents,new_contents);
return true;
}
bool copy(File & source,File & target)
{
// ** 3 **
}
void main{)
{
File f1("filel"),f2("file2");
f1.set_contents("filel contents");
copy(f1,f2);
f2.printfile();
f2.set_contents("file2 contents,);
f2.printfile();
}
第5题:
Whileinstallinganapplication,theadministratorisinstructedtoperformtwofinaltaskspriortostartingtheapplication:1.Settheownershipofafilenamed’control_file’tobeownedbytheuser’database’andthegroup’appsrvr’.2.Changethepermissionsof’control_file’to0766.Afterthesetwotaskshavebeencompleted,whatwillthefilepermissionslooklikewhen’ls-lcontrol_file’isexecuted?()
A.-rwxrw-rw-1databaseappsrvr4913Mar1708:24control_file
B.-rw-r--r--1appsrvrdatabase4913Mar1708:24control_file
C.-rw-r--r--1databaseappsrvr4913Mar1708:24control_file
D.-rwxrw-rw-1appsrvrdatabase4913Mar1708:24control_file
第6题:
A.CONTROL_FILES
B.CONTROL_FILES_NAME
C.CONTROL_NAME
D.CONTROL_FILE