To add a column called email to the contacts table created in Create a basic MySQL table with a datatype of VARCHAR(80), use the following SQL statement: ALTER TABLE contacts ADD email VARCHAR(60); This first statement will add the email c
To add a column called
email
to the contacts table created in
Create a basic MySQL table with a datatype of VARCHAR(80), use the following SQL statement:
This first statement will add the email column to the end of the table. To insert the new column after a specific column, such as name, use this statement:
If you want the new column to be first, use this statement:
MySQL（Linux）
MySQL 9.6.0是面向Linux平台的2026年创新版本，核心架构迎来重大革新。其将外键约束与级联操作从InnoDB引擎层上移至SQL层，确保所有数据变更均被完整记录至Binlog，彻底解决了CDC（变更数据捕获）与主从复制中的数据不一致难题。此外，该版本引入container_aware启动选项以原生适配容器环境，并对审计日志进行了组件化重构，为追求极致数据一致性与云原生体验的开发者提供了全新选择。
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ALTER TABLE contacts ADD email VARCHAR(60);ALTER TABLE contacts ADD email VARCHAR(60) AFTER name;ALTER TABLE contacts ADD email VARCHAR(60) FIRST;