以下程序段哪段是正确的() A: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10; B: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10 C: declare id int default 0; repeat set id=id+1; until id>=10 end repeat; D: declare id int default 0; repeat set id=id+1; until id>=10; end repeat;
以下程序段哪段是正确的() A: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10; B: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10 C: declare id int default 0; repeat set id=id+1; until id>=10 end repeat; D: declare id int default 0; repeat set id=id+1; until id>=10; end repeat;
以下程序段的输出结果是( )。 id='370211200101018956' t=(id[6:10], id[10:12], id[12:14]) date='-'.join(t) print(date)
以下程序段的输出结果是( )。 id='370211200101018956' t=(id[6:10], id[10:12], id[12:14]) date='-'.join(t) print(date)
对于如下语句struct node{ int id; struct node *next;}*p;p=(struct node*)malloc(sizeof(struct node)*10);如下说法正确的是 A: p.id=10实现给首节点的id成员赋值 B: *p.id=10实现给首节点的id成员赋值 C: (*p).id=10实现给首节点的id成员赋值 D: p=>id=10实现给首节点的id成员赋值
对于如下语句struct node{ int id; struct node *next;}*p;p=(struct node*)malloc(sizeof(struct node)*10);如下说法正确的是 A: p.id=10实现给首节点的id成员赋值 B: *p.id=10实现给首节点的id成员赋值 C: (*p).id=10实现给首节点的id成员赋值 D: p=>id=10实现给首节点的id成员赋值
下来定义表的约束语法,错误的是() A: create table t1(id number primary key,name varchar2(10)) B: create table t1(id number constraint p_k primary key(id),name varchar2(10)) C: create table t1(id number constraint p_k primary key,name varchar2(10)) D: create table t1(id number,name varchar2(10),primary key(id))
下来定义表的约束语法,错误的是() A: create table t1(id number primary key,name varchar2(10)) B: create table t1(id number constraint p_k primary key(id),name varchar2(10)) C: create table t1(id number constraint p_k primary key,name varchar2(10)) D: create table t1(id number,name varchar2(10),primary key(id))
下列哪项属于字寻址() A: VB10 B: VW10 C: ID10 D: MD28
下列哪项属于字寻址() A: VB10 B: VW10 C: ID10 D: MD28
下列哪个属于字节寻址() A: VB10 B: VW10 C: ID10 D: I1.0
下列哪个属于字节寻址() A: VB10 B: VW10 C: ID10 D: I1.0
已知 a = [10, 20, 30] 和 b = [10, 20, 40] ,那么 id(a[1])==id(b[1]) 的执行结果为 ___________ 。
已知 a = [10, 20, 30] 和 b = [10, 20, 40] ,那么 id(a[1])==id(b[1]) 的执行结果为 ___________ 。
已知 a = [10, 20, 30] 和 b = [10, 20, 40] ,那么 id(a[1])==id(b[1]) 的执行结果为 ___________ 。
已知 a = [10, 20, 30] 和 b = [10, 20, 40] ,那么 id(a[1])==id(b[1]) 的执行结果为 ___________ 。
查询主键id从高到低排序的前10条记录的语句是() A: SELECT * FROM table ORDER BY id ASC limit 1,10 B: SELECT * FROM table ORDER id DESC limit 10 C: SELECT * FROM table ORDER BY id DESC limit 10 D: SELECT * FROM table ORDER id ASC limit 1,10
查询主键id从高到低排序的前10条记录的语句是() A: SELECT * FROM table ORDER BY id ASC limit 1,10 B: SELECT * FROM table ORDER id DESC limit 10 C: SELECT * FROM table ORDER BY id DESC limit 10 D: SELECT * FROM table ORDER id ASC limit 1,10
以下自定义数据类型的语句中,正确的是 A: A.Type student ID As String * 20 name As String * 10 age As Integer End student B: B.Type student ID As String * 20 name As String * 10 age As Integer End Type C: C.Type student ID As String name As String age As Integer End student D: C.Type ID As String * 20 name As String * 10 age As Integer End Type student
以下自定义数据类型的语句中,正确的是 A: A.Type student ID As String * 20 name As String * 10 age As Integer End student B: B.Type student ID As String * 20 name As String * 10 age As Integer End Type C: C.Type student ID As String name As String age As Integer End student D: C.Type ID As String * 20 name As String * 10 age As Integer End Type student