Question

这是我原来的表格。

+----------+---------------------+--------+------------+-------+
| lab_code | test_name           | sample | time_taken | price |
+----------+---------------------+--------+------------+-------+
| FBS      | Fasting blood Suagr | Blood  | 01:15:00   |   400 |
| STLC     | Stool Culture       | Stool  | 48:00:00   |   700 |
| UA       | Urinalysis          | Urine  | 02:30:00   |   425 |
| UDS      | Urine drug screen   | Urine  | 06:00:00   |   550 |
+----------+---------------------+--------+------------+-------+

我想要显示

+----------+
| Hospital | 
+----------+
| FBS      | 
| STLC     | 
| UA       | 
| UDS      | 
+----------+

我希望在数据查询时更改属性名称。（不更改原始表格）请帮助。

Answer 1

将ALIAS名称提供给特定列

SELECT lab_code AS Hospital 
From tableA

Answer 2

怎么样？

SELECT lab_code AS Hospital FROM <table_name>;

AS的使用是 ALIAS ，可用于列名;它并不意味着表的列名更改，而是在执行SELECT查询时，它将成为表中当前列名的列名或别名。

Answer 3

试试这个

SELECT lab_code AS Hospital From original_table

它可以使用AS

SELECT lab_code Hospital From original_table

Answer 4

试试这个

aliases用于临时重命名列名（或其他情况下的表名）

SELECT lab_code AS Hospital FROM Table

Answer 5

SELECT lab_code AS Hospital

FROM Original_Table

Answer 6

试试这个：

SELECT "lab_code" AS "Hospital" FROM "table";

Answer 7

如果lab_code不是主键，请使用此查询

SELECT DISTINCT lab_code AS Hospital 
FROM myTable

在Mysql中更改属性名称

7 个答案: