Question

我有一个表1

SELECT Table1.pbsc, sum(Table1.qty) As quantity , sum(Table1.wt) As
> Weight
>       FROM Table1 group by Table1.pbsc;

我正在尝试从Table1获得2个结果集（2个查询表）

如果pbsc具有类似的数据，那么总结qty和wt，对于我使用的查询

pbsc    quantity    Weight
pbsc1   1             8
pbsc2   4            19
pbsc3   1             0
pbsc4   9             9

给了我

  pbsc    qty    wt
  pbsc1     1     8
  pbsc2     4     19

但是我试图只将pbsc1，pbsc2作为一个结果集，因为它们在Table1中出现不止一次，因为 result1

  pbsc   qty   wt
  pbsc3   1    0
  pbsc4   9    9

result2 应该是（因为pbsc3，pbsc4只出现一次）

{{1}}

Answer 1

- 不止一个pbsc。

SELECT Table1.pbsc,
       sum(Table1.qty) As quantity ,
       sum(Table1.wt) As  Weight
  FROM Table1
 group by Table1.pbsc
 having count(*) > 1;

- 只有一个pbsc记录。

SELECT Table1.pbsc,
       sum(Table1.qty) As quantity ,
       sum(Table1.wt) As  Weight
  FROM Table1
 group by Table1.pbsc
 having count(*) = 1;