这里正确的查询是什么?
我想把"year“作为一个参数:
select distinct
p.id "pub_id"
from
publication "p", organisation_association "oa", organisation "o", localized_string_text "lst_org"
where
p.id = oa.publication_id
and oa.organisation_id = o.id
and o.name_id = lst_org.localized_string_id
and p.submission_year = ?
and exists (select 1
from
publication "p2", organisation_association "oa2", organisation "o2"
where
p2.id = p.id
and p2.id = oa2.publication_id
and oa2.organisation_id = o2.id
and o2.period_end_date < date ? + '-01-01')但是,最后一行的连接会产生语法错误。
发布于 2013-07-03 16:08:57
如果参数是作为年份字符串传递的:
and o2.period_end_date < date (? || '-01-01'))如果是日期:
and o2.period_end_date < date_trunc('year', ?)如果是年号:
and o2.period_end_date < date (?::text || '-01-01'))https://stackoverflow.com/questions/17442072
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