데이터베이스, c언어

소개글

데이터베이스, c언어에 대한 보고서 자료입니다.

본문내용

cord(s) Created\n");
fprintf(Prof,"%s %s %s\n",ch1,ch2,ch3);
i=fclose(Prof);
if(i!=0)
{
printf("file close error\n");
return 1;
}
}
else if(strcmp(menu,"rProf")==0)
{
Prof = fopen("Prof.txt", "a+");
if(Prof==NULL)
{
printf("file open error!\n");
return 1;
}
i=0;
while(1) {
ck=fscanf(Prof,"%s %s %s\n",ch1,ch2,ch3);
if(ck==EOF)
break;
printf("%s %s %s\n",ch1, ch2, ch3);
i++;
}
printf("%d Record(s) Read\n",i);
i=fclose(Prof);
if(i!=0) {
printf("file close error\n");
return 1;
}
}
else if(strcmp(menu,"cRelation")==0)
{
Student = fopen("Student.txt", "a+");
Prof = fopen("Prof.txt", "a+");
Relation = fopen("Relation.txt", "a+");
if(Student==NULL || Prof==NULL || Relation==NULL)
{
printf("file open error!\n");
return 1;
}
scanf("%s %s",num1, num2);
while(1)
{
ck = fscanf(Student,"%s %s %s\n",ch1, ch2, ch3);
if(ck==EOF)
break;
else if(strcmp(ch1,num1)==0)
break;
}
while(1)
{
ck = fscanf(Prof,"%s %s %s\n",ch4, ch5, ch6);
if(ck==EOF)
break;
else if(strcmp(ch4,num2)==0)
break;
}
if(strcmp(ch1,num1)==0 && strcmp(ch4,num2)==0)
{
fprintf(Relation,"%s %s %s %s %s\n", ch1, ch2, ch3, ch4, ch5);
printf("1 Record(s) Created\n");
}
i=fclose(Student);
if(i!=0)
{
printf("file close error\n");
return 1;
}
i=fclose(Prof);
if(i!=0)
{
printf("file close error\n");
return 1;
}
i=fclose(Relation);
if(i!=0)
{
printf("file close error\n");
return 1;
}
}
else if(strcmp(menu,"rRelation")==0)
{
Relation = fopen("Relation.txt", "a+");
if(Prof==NULL)
{
printf("file open error!\n");
return 1;
}
i=0;
while(1)
{
ck=fscanf(Relation,"%s %s %s %s %s\n",ch1,ch2,ch3,ch4,ch5);
if(ck==EOF)
break;
printf("%s %s %s %s %s\n",ch1, ch2, ch3, ch4, ch5);
i++;
}
printf("%d Record(s) Read\n",i);
i=fclose(Relation);
if(i!=0)
{
printf("file close error\n");
return 1;
}
}
else
{
printf("error\n");
continue;
}
}
return 0;
}

키워드

데이터베이스,   c언어,   소스코드