显示年度交易

Question

如果汇总的总数为“500”，我希望结果显示“总计”而不是当前显示“空”的位置

另外，我不确定如何添加 WHERE 子句来仅查看 2018 年处理的交易？

有什么想法吗？谢谢

select date_format(TRANSACTION_DATE, '%M') AS MONTH, 
SUM(SALES_AMOUNT) TOTAL
FROM SALES
GROUP BY DATE_FORMAT(TRANSACTION_DATE, '%M') WITH ROLLUP

January 160.00
June    100.00
May     240.00
Null    500.00

Answer 1

这对我有用：

http://www.sqlfiddle.com/#!18/8647e/4

SELECT 
isnull(datename(month, [Date1]), 'Total'),
SUM([Amount])
FROM Table1
GROUP BY datename(month , [Date1]) WITH ROLLUP

结果：

|         |     |
|---------|-----|
| January | 160 |
|    June | 100 |
|     May | 240 |
|   Total | 500 |