oralce字符串转数字
时间: 2023-08-17 17:13:07 浏览: 45
在Oracle中,可以使用CAST函数将字符串转换为数字类型。语法如下:
CAST(字段名称 AS 数字类型)
例如,如果要将字段a从varchar类型转换为整数类型,可以使用以下语句:
SELECT CAST(a AS INTEGER) FROM table_a
这样就可以将字段a的数据转换为数字类型,以便进行准确的数字比较和排序。\[2\]
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- *1* *3* [Oracle将字符串转为数字](https://blog.csdn.net/u014665856/article/details/73469887)[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^v91^control,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [Oracle中对字符串类型的数字正确排序](https://blog.csdn.net/xiaochenXIHUA/article/details/120506475)[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^v91^control,239^v3^insert_chatgpt"}} ] [.reference_item]
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