PostgreSQL INNER JOIN与WHERE子句连接 [英] PostgreSQL INNER JOIN vs WHERE clause join

问题描述

我认为INNER JOIN等同于WHERE子句中的JOIN.当我使用WHERE子句进行联接时，我得到返回的行.但是，如果我执行INNER JOIN，则不会输出任何行.我得到没有匹配的结果.我误会了，或者我做错了什么?

I thought INNER JOIN was equivalent to JOIN in WHERE clause. When I make join using WHERE clause, I get rows returned. But if I do INNER JOIN, then no rows are outputed. I get result that there are no matches. Am I mistaken, or I'm doing something wrong?

这些联接等效吗?:

INNNER JOIN:

INNNER JOIN:

account_move_reconcile_line_applied amrla
INNER JOIN account_move_reconcile_line amrl ON (amrla.credit_line_id = amrl.id)
INNER JOIN account_move_reconcile amr ON (amrl.credit_reconcile_id = amr.id)
INNER JOIN account_move_line aml ON (aml.reconcile_partial_id = amr.id)
INNER JOIN res_partner rp ON (aml.partner_id = rp.id)

IN WHERE子句:

IN WHERE clause:

amrla.credit_line_id = amrl.id
and amrl.partner_id = rp.id
and amrl.credit_reconcile_id = amr.id
and aml.reconcile_id = amr.id

推荐答案

ID错误:

INNER JOIN account_move_line aml ON (aml.reconcile_partial_id = amr.id)

它应该是reconcile_id而不是reconcile_partial_id.

It should have been reconcile_id instead of reconcile_partial_id.

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