mysql unsigned

在MySQL中，unsigned表示无符号的意思，它可以用于增加数据长度。例如，如果int的最大值是2147483647，那么使用unsigned属性的int最大值可以达到2147483647 * 2。unsigned属性只适用于整型数据，而不适用于字符型数据。\[1\]\[2\]\[3\]
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- *1* [mysql 数据库unsigned的用法](https://blog.csdn.net/cai_and_luo/article/details/116654625)[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^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [理解mysql中的unsigned是什么意思](https://blog.csdn.net/hi1234560/article/details/119185362)[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^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [mysql中的unsigned是什么意思???](https://blog.csdn.net/weixin_33806300/article/details/85438972)[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^insert_down1,239^v3^insert_chatgpt"}} ] [.reference_item]
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