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lj_unit_lesson_relation.md
lj_unit_lesson_relation.md
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unit_lesson_relation table structure
此表为单元与课的对应关系的数据结构
field
type
null
default
desc
extra
id
varchar(512)
no
主键
pri
unit_id
varchar(512)
no
单元id
lesson_id
varchar(512)
no
课程id
gmt_created
timestamp
no
now
创建时间
index
unique index on(unit_id, lesson_id)