| | |
| | | CREATE TABLE coal_info |
| | | ( |
| | | id SERIAL PRIMARY KEY, -- 主键,自动递增 |
| | | coal_name VARCHAR(255) NOT NULL, -- 煤种名称,不允许为空 |
| | | maintainer VARCHAR(255) NOT NULL, -- 维护人,不允许为空 |
| | | coal VARCHAR(255) NOT NULL, -- 煤种名称,不允许为空 |
| | | maintainer_id int4 NOT NULL DEFAULT 0, -- 维护人,不允许为空 |
| | | maintenance_date DATE NOT NULL, -- 维护日期,不允许为空 |
| | | |
| | | -- 新增字段 |
| | |
| | | |
| | | -- 为字段添加注释 |
| | | COMMENT ON COLUMN coal_info.id IS '主键ID'; |
| | | COMMENT ON COLUMN coal_info.coal_name IS '煤种名称'; |
| | | COMMENT ON COLUMN coal_info.maintainer IS '维护人姓名'; |
| | | COMMENT ON COLUMN coal_info.coal IS '煤种名称'; |
| | | COMMENT ON COLUMN coal_info.maintainer_id IS '维护人姓名'; |
| | | COMMENT ON COLUMN coal_info.maintenance_date IS '维护日期'; |
| | | |
| | | -- 新增字段的注释 |