23 lines
686 B
MySQL
23 lines
686 B
MySQL
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-- =============================================
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-- 员工柜员号优化 - 数据库表结构修改
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-- 日期: 2026-02-05
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-- 说明: 移除teller_no字段,将employee_id改为7位数字柜员号(非自增)
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-- =============================================
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USE ccdi;
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-- 1. 删除 teller_no 字段
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ALTER TABLE ccdi_employee DROP COLUMN teller_no;
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-- 2. 修改 employee_id 为非自增
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ALTER TABLE ccdi_employee MODIFY employee_id BIGINT(20) NOT NULL;
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-- 3. 更新字段注释
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ALTER TABLE ccdi_employee MODIFY COLUMN employee_id BIGINT(20) NOT NULL COMMENT '员工ID(柜员号,7位数字)';
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-- 4. 验证表结构
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DESC ccdi_employee;
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-- 5. 验证索引
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SHOW INDEX FROM ccdi_employee;
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