数据库中要把字符串“Forestry”变成“FORESTRY”，可使用的表达式是

在数据库中，如果你想将字符串"Forestry"转换为大写的格式"FORESTRY"，这通常取决于你正在使用的特定数据库管理系统（DBMS）。大多数现代SQL数据库支持内置函数来进行大小写转换。例如，在MySQL中，你可以使用`UPPER()`函数，如下：

SELECT UPPER('Forestry') AS transformed_string;

在Oracle中，可以使用`UPPER()`或`LCASE()`函数：

SELECT LCASE('Forestry') AS transformed_string;  -- Oracle的版本

在SQL Server中，则可以使用`REPLACE()`结合`ASCII()`和`CHAR()`函数来达到目的，但更直接的方式是`UPPER()`：

SELECT REPLACE(REPLACE('Forestry', 'f', 'F'), 'e', 'E') AS transformed_string;  -- SQL Server的变通法

每种数据库可能会有不同的语法，建议查阅你所用数据库的具体文档。

相关问题

列表 ls 中存储了我国 39 所 985 高校所对应的学校类型，请以这个列表为数据变量，编写 代码，统计输出各类型的数量，要求按类别字母顺序输出。【样例输入】 无 【样例输出】 Agricultural and Forestry 2 Comprehensive 20 Military 1 Nationalities 1 Normal 2 Polytechnic 13

ls = ['Comprehensive', 'Polytechnic', 'Normal', 'Nationalities', 'Agricultural and Forestry', 'Military', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal', 'Comprehensive', 'Polytechnic', 'Normal']

type_dict = {}
for t in sorted(set(ls)):
    type_dict[t] = ls.count(t)

for k, v in type_dict.items():
    print(k, v)

输出结果为：

Agricultural and Forestry 2
Comprehensive 10
Military 1
Nationalities 1
Normal 10
Polytechnic 15

【问题描述】列表 ls 中存储了我国 39 所 985 高校所对应的学校类型，请以这个列表为数据变量，编写 代码，统计输出各类型的数量，要求按类别字母顺序输出。 ls = ["Comprehensive", "Polytechnic", "Comprehensive", "Comprehensive", "Comprehensive", \ "Comprehensive", "Comprehensive", "Comprehensive", "Comprehensive", "Comprehensive",\ "Normal", "Polytechnic", "Comprehensive", "Polytechnic", "Comprehensive", "Comprehensive", \ "Comprehensive", "Comprehensive", "Comprehensive","Polytechnic",\ "Polytechnic", "Polytechnic", "Polytechnic", "Normal", "Comprehensive", \ "Agricultural and Forestry", "Polytechnic", "Comprehensive", "Polytechnic", "Polytechnic", \ "Polytechnic", "Comprehensive", "Polytechnic", "Comprehensive", "Comprehensive", \ "Polytechnic", "Agricultural and Forestry", "Nationalities", "Military"] 【样例输入】 无 【样例输出】 Agricultural and Forestry 2 Comprehensive 20 Military 1 Nationalities 1 Normal 2 Polytechnic 13用python写

ls = ["Comprehensive", "Polytechnic", "Comprehensive", "Comprehensive", "Comprehensive",
      "Comprehensive", "Comprehensive", "Comprehensive", "Comprehensive", "Comprehensive",
      "Normal", "Polytechnic", "Comprehensive", "Polytechnic", "Comprehensive", "Comprehensive",
      "Comprehensive", "Comprehensive", "Comprehensive","Polytechnic",
      "Polytechnic", "Polytechnic", "Polytechnic", "Normal", "Comprehensive",
      "Agricultural and Forestry", "Polytechnic", "Comprehensive", "Polytechnic", "Polytechnic",
      "Polytechnic", "Comprehensive", "Polytechnic", "Comprehensive", "Comprehensive",
      "Polytechnic", "Agricultural and Forestry", "Nationalities", "Military"]

count = {}
for school in ls:
    if school in count:
        count[school] += 1
    else:
        count[school] = 1

for key in sorted(count.keys()):
    print(key, count[key])