更新jira表字段的SQL

问题描述 投票:0回答:1
UPDATE cg
SET NEWSTRING = ''
FROM changegroup cg
inner join jiraissue i on cg.issueid = i.id
inner join project p on i.project = p.id
inner join changeitem ci on ci.groupid = cg.id AND ci.FIELD='Access Matrix Table'
inner join app_user au on cg.author = au.user_key
WHERE cg.issueid=(select id from jiraissue where issuenum = 124 and project in (select id from project where pname = 'NTW Customer Incident Management')) 

我有错误的cg关系不存在。谁能帮帮我,它的语法错误在哪里?

sql postgresql sql-update jira
1个回答
0
投票

如手册中所述 目标表的别名需要在UPDATE部分提供,而不是FROM部分。

UPDATE changegroup cg
  SET NEWSTRING = ''
FROM jiraissue i, 
     project p, 
     changeitem ci, 
     app_user au 
WHERE cg.issueid = i.id 
  AND i.project = p.id
  AND ci.groupid = cg.id AND ci.FIELD='Access Matrix Table'
  AND cg.author = au.user_key
  AND cg.issueid = (select id 
                    from jiraissue 
                    where issuenum = 124 
                      and project in (select id 
                                      from project 
                                      where pname = 'NTW Customer Incident Management')) 

目标表不能用于JOIN条件,所以将所有的连接条件移到WHERE子句中更容易。

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