有人可以帮我解决这个问题吗?
我需要将以下sql代码翻译成续集:
SELECT DISTINCT sales_leads.employee_person_id,
(SELECT full_name from persons
WHERE sales_leads.employee_person_id=persons.id),
(SELECT COUNT (sales_leads.id) from sales_leads
WHERE sales_leads.employee_person_id=employees.person_id
AND sales_leads.status='open') AS open_leads_count,
(SELECT COUNT (sales_leads.id) from sales_leads
WHERE sales_leads.employee_person_id=employees.person_id
AND sales_leads.status='lost' OR sales_leads.status='won') AS closed_leads_count
FROM sales_leads
JOIN employees ON sales_leads.employee_person_id=employees.person_id
ORDER BY sales_leads.employee_person_id;
这是我到目前为止所做的:
DB[:sales_leads]
.inner_join(:persons, id: :employee_person_id)
.select(:full_name)
.select_append(
DB[:sales_leads]
.select(:id)
.where(Sequel[:sales_leads][:employee_person_id]=>Sequel[:persons][:id])
.count
).all
但是我收到了一个错误:
PG :: UndefinedTable:错误:缺少表的FROM子句条目 "人"第1行:...... eads" WHERE(" sales_leads"。" employee_person_id" = "人" .... ^:SELECT count(*)AS" count" FROM" sales_leads"哪里 (" sales_leads"。" employee_person_id" ="人员"。" id")限制1 Sequel :: DatabaseError:PG :: UndefinedTable:错误:缺少FROM子句 表"人员"第1行:...... eads"哪里 (" sales_leads"。" employee_person_id" ="人员" .... ^来自/home/john/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/sequel-5.5.0/lib/sequel/adapters/postgres.rb:145:in `async_exec'
答案 0 :(得分:2)
您正在调用要传递给select_append调用的数据集上的Dataset#count
,Dataset#count
会运行查询。您可能需要.select{count(sales_leads[:id])}
而不是.count
。