+----+----------+-----+-----------+----------+
| ID | NAME | AGE | ADDRESS | SALARY |
+----+----------+-----+-----------+----------+
| 1 | Ramesh | 32 | Ahmedabad | 2000.00 |
| 2 | Khilan | 25 | Delhi | 1500.00 |
| 3 | kaushik | 23 | Kota | 2000.00 |
| 4 | Chaitali | 25 | Mumbai | 6500.00 |
| 5 | Hardik | 27 | Bhopal | 8500.00 |
| 6 | Komal | 22 | MP | |
| 7 | Muffy | 24 | Indore | |
+----+----------+-----+-----------+----------+
如何在插入值时在薪金列的id 6,7上面的表中打印null而不是空格。是否有可能在sql中看到'null'而不是空白
+----+----------+-----+-----------+----------+
| ID | NAME | AGE | ADDRESS | SALARY |
+----+----------+-----+-----------+----------+
| 1 | Ramesh | 32 | Ahmedabad | 2000.00 |
| 2 | Khilan | 25 | Delhi | 1500.00 |
| 3 | kaushik | 23 | Kota | 2000.00 |
| 4 | Chaitali | 25 | Mumbai | 6500.00 |
| 5 | Hardik | 27 | Bhopal | 8500.00 |
| 6 | Komal | 22 | MP | null |
| 7 | Muffy | 24 | Indore | null |
+----+----------+-----+-----------+----------+
请发表您的SQL INSERT语句 – Chris
你好吗“*眼见*”这个表?您使用什么查询来返回数据以及您使用什么工具/代码来显示它? – RBarryYoung
默认情况下,sql'select'语句显示空值而不是空格,您确定所有列中的值是否为空值,而不是空格? (assumming sql server或mysql) – Amber