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select"m_name",出生年份:,birth,islower(depfrom manager select m_name,"出生年份:",birth,islower(depfrom manager select m_name,"出生年份:",birth,dept from manager select m_name,"出生年份:",birth,upper(depfrom manager
select"m name",出生年份:,birth,islower(dep from manager select m_name,"出生年份:",birth,islower(depfrom manager selectm_name,"出生年份:",birth,dept from manager selectm_name,"出生年份:",birth,upper(depfrom manager
x=1987 birth.x=1987; birth.x=1987; x=1987;
可用S定义结构体变量 可用T定义结构体变量 S是struct类型的变量 T是struct S类型的变量
a[2*3+5]可以是一个数组元素 可以对结构体类型和结构类型变量赋值、存取或运算 结构一经定义,系统就给它分配了所需的内存单元 结构体变量和共用体变量所占的内存长度是各成员占的内存长度之和
x=1987 birth.x=1987; birth.x=1987; x=1987;
x=1987 birtx=1987; birtx=1987; x=1987;
year=1976 birthday. year=1976 person. year=1976 person. birthday. year=1976
scanf("%s",s[0].nam; scanf("%d",&s[0].ag; scanf("%c",&(ps->se); scanf("%d",ps->ag;
x=1987 birth.x=1987; birth.x=1987; x=1987;
x=1987 birtx=1987; birtx=1987; x=1987;
x=1987 birtx=1987; birtx=1987; x=1987;
select "m_name", 出生年份:,birth,islower(dept) from manager select m_name,"出生年份:", birth,islower(dept) from manager select m_name,"出生年份:", birth, dept from manager select m_name,"出生年份:", birth,upper(dept) from manager
x=1987 birth.x=1987; birth.x=1987; x=1987;
x=1987 birtx=1987; birtx=1987; x=1987;
select"m name",出生年份:,birth,islower(dept) from manager select m_name,"出生年份:",birth,islower(dept)from manager selectm_name,"出生年份:",birth,dept from manager selectm_name,"出生年份:",birth,upper(dept)from manager
可以用TT定义结构体变量 IT是struct类型的变量 可以用CIN定义结构体变量 CIN是struct IT类型的变量
x=1987 birth.x=1987; p.birth.x=1987; p.x=1987;
select"m_name",出生年份:,birth,islower(dept)from manager select m_name,"出生年份:",birth,islower(dept)from manager select m_name,"出生年份:",birth,dept from manager select m_name,"出生年份:",birth,upper(dept)from manager
可用S定义结构体变量 可以用T定义结构体变量 S是struct类型的变量 T是struct S类型的变量