sql中一个表的数据插入到另一个表中sql语句如何写？多谢

sql中一个表的数据插入到另一个表中sql语句怎么写？谢谢！
A表有ID,NAME,AGE,三列,且ID是主键且不是自动增长列
B表有NAME和AGE两列,NAME是主键
现在要把B表所有记录插入到A表中,
sqs语句怎么写？谢谢！

[解决办法]

SQL code

INSERT INTO ASELECT Name,AgeFROM B
[解决办法]
SQL code
DECLARE @ID INTSET @ID=1DECLARE @COUNT INTSELECT @COUNT =COUNT(1) FROM BWHILE @ID<=@COUNTBEGIN   INSERT INTO A SELECT @ID,NAME,Age from B  SET @ID=@ID+1END
[解决办法]
declare @id int
set @id=select id from A 
insert into A select isnull(max(@id),0),* from B
就这样的思路吧
[解决办法]
SQL code
INSERT INTO ASELECT rn=ROW_NUMBER()over(order by Name),Name,AgeFROM B
[解决办法]
SQL code
-- 取出最大IDdeclare @maxID intselect @maxID = max(ID) from A-- 插入数据insert into A(ID, Name, AGE)select ID=(row_number() over (order by Name))+@MaxID, Name, Age from B
[解决办法]
给你个结果
SQL code
CREATE TABLE A(    ID INT NOT NULL,    Name VARCHAR(100),    age INT)GOCREATE TABLE B(    Name VARCHAR(100),    Age INT)GOINSERT INTO BSELECT 'haha',3 UNIONSELECT 'hoho',3 UNIONSELECT 'hehe',3INSERT INTO ASELECT rn=ROW_NUMBER()over(order by Name),Name,AgeFROM BSELECT * FROM AID    Name    age1    haha    32    hehe    33    hoho    3
[解决办法]
若表A中已存在数据，则使用下面的语句
SQL code
INSERT INTO ASELECT rn=ROW_NUMBER()over(order by Name) + (SELECT MAX(Id) FROM A),Name,AgeFROM B