MySQL实现九九乘法表
作者:互联网
方法一:
最简单的方式实现
select no, '*', no1, '=', no*no1 result from (
select * from (
select 1 no1
union all
select 2 no1
union all
select 3 no1
union all
select 4 no1
union all
select 5 no1
union all
select 6 no1
union all
select 7 no1
union all
select 8 no1
union all
select 9 no1
) a JOIN (
select 1 no
union all
select 2 no
union all
select 3 no
union all
select 4 no
union all
select 5 no
union all
select 6 no
union all
select 7 no
union all
select 8 no
union all
select 9 no) b on (0 = 0)
) c;
结果:
1 * 1 = 1
2 * 1 = 2
3 * 1 = 3
4 * 1 = 4
5 * 1 = 5
6 * 1 = 6
7 * 1 = 7
8 * 1 = 8
9 * 1 = 9
1 * 2 = 2
2 * 2 = 4
3 * 2 = 6
4 * 2 = 8
5 * 2 = 10
6 * 2 = 12
7 * 2 = 14
8 * 2 = 16
9 * 2 = 18
1 * 3 = 3
2 * 3 = 6
3 * 3 = 9
4 * 3 = 12
5 * 3 = 15
6 * 3 = 18
7 * 3 = 21
8 * 3 = 24
9 * 3 = 27
1 * 4 = 4
2 * 4 = 8
3 * 4 = 12
4 * 4 = 16
5 * 4 = 20
6 * 4 = 24
7 * 4 = 28
8 * 4 = 32
9 * 4 = 36
1 * 5 = 5
2 * 5 = 10
3 * 5 = 15
4 * 5 = 20
5 * 5 = 25
6 * 5 = 30
7 * 5 = 35
8 * 5 = 40
9 * 5 = 45
1 * 6 = 6
2 * 6 = 12
3 * 6 = 18
4 * 6 = 24
5 * 6 = 30
6 * 6 = 36
7 * 6 = 42
8 * 6 = 48
9 * 6 = 54
1 * 7 = 7
2 * 7 = 14
3 * 7 = 21
4 * 7 = 28
5 * 7 = 35
6 * 7 = 42
7 * 7 = 49
8 * 7 = 56
9 * 7 = 63
1 * 8 = 8
2 * 8 = 16
3 * 8 = 24
4 * 8 = 32
5 * 8 = 40
6 * 8 = 48
7 * 8 = 56
8 * 8 = 64
9 * 8 = 72
1 * 9 = 9
2 * 9 = 18
3 * 9 = 27
4 * 9 = 36
5 * 9 = 45
6 * 9 = 54
7 * 9 = 63
8 * 9 = 72
9 * 9 = 81
方法二:
DECLARE @I INT ,@J INT,@S VARCHAR(100)
SET @I=1
WHILE @I<10
BEGIN
SET @J=1
SET @S=''
WHILE @J<=@I
BEGIN
SET @S=@S+CAST(@J AS CHAR(1))+'*'+CAST(@I AS CHAR(2))+'='+CAST((@I*@J)AS CHAR(3))
SET @J=@J+1
END
PRINT @S
SET @I=@I+1
END
结果二:
1*1 =1
1*2 =2 2*2 =4
1*3 =3 2*3 =6 3*3 =9
1*4 =4 2*4 =8 3*4 =12 4*4 =16
1*5 =5 2*5 =10 3*5 =15 4*5 =20 5*5 =25
1*6 =6 2*6 =12 3*6 =18 4*6 =24 5*6 =30 6*6 =36
1*7 =7 2*7 =14 3*7 =21 4*7 =28 5*7 =35 6*7 =42 7*7 =49
1*8 =8 2*8 =16 3*8 =24 4*8 =32 5*8 =40 6*8 =48 7*8 =56 8*8 =64
1*9 =9 2*9 =18 3*9 =27 4*9 =36 5*9 =45 6*9 =54 7*9 =63 8*9 =72 9*9 =81
标签:24,九九乘法,no,实现,union,12,MySQL,no1,select 来源: https://blog.csdn.net/weixin_43671437/article/details/117729236