count(1) 转成varchar
时间: 2023-08-22 17:07:37 浏览: 62
要将count(1)转换为varchar类型,可以使用cast或convert函数来实现。在引用中的代码中,可以将count(1)的类型转换为varchar类型。具体的修改代码如下:
SELECT area_name, cast(count(1) as varchar) as count
FROM A03_CITIC_ENT_basic
WHERE country_nam = #{mapName}
GROUP BY area_name
HAVING count(area_name) >= 1
在这个修改后的代码中,将count(1)使用cast函数转换为varchar类型,并将转换后的结果赋值给名为count的新列。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [数据库 count 返回类型修改](https://blog.csdn.net/dgy105/article/details/80857329)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* [聚合函数简介,以及,聚合函数中字段为varchar类型怎么办](https://blog.csdn.net/qq_40673345/article/details/102537666)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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