postgresql - 在PostgreSQL中用特定值填充表的所有列？

Question

我有一张表，我想用特定值填充一列。

示例表：它包括空的温度列，我想用 4.56 填充相关列的所有行。

+------------+------------------+
|温度 |dt |
+------------+------------------+
| |9/15/2007 12:12:12|                  
| |9/15/2007 12:14:16|
| |9/15/2007 12:16:02|
| |9/15/2007 12:18:23|
| |9/15/2007 12:21:01|
+------------+------------------+

结果：

+------------+------------------+
|温度 |dt |
+------------+------------------+
| 4.56 |9/15/2007 12:12:12|                  
| 4.56 |9/15/2007 12:14:16|
| 4.56 |9/15/2007 12:16:02|
| 4.56 |9/15/2007 12:18:23|
| 4.56 |9/15/2007 12:21:01|
+------------+------------------+

Answer 1

update the_table
   set temperature = 4.56;
commit;