19 lines
558 B
Markdown
19 lines
558 B
Markdown
## EMS Database
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---
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### 1. Relationship of menu, account, account_menu, title_info
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通过多表联合查询可一次性获取某个账号的目录结果：
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example, acouunt name='manager', lang-key='cn'：
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```sql
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SELECT m.id, json_unquote(json_extract(t.title_json, '$.en')) as title, m.parent_id, m.sort_id FROM title_info t, menu m WHERE m.id IN (SELECT am.menu_id FROM account_menu am WHERE am.account_id = (SELECT id FROM account WHERE name='manager')) AND m.title_id = t.id ORDER BY m.id
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```
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