如果没有出现MySQL column reference “username” is ambiguous问题的错误提示,那么我们就成功解决了这个问题。 结论 通过明确指定表名或者使用别名来解决MySQL column reference “username” is ambiguous问题,我们可以避免在多表查询中出现列名不明确的错误。在编写查询语句时,确保使用完整的表名或者别名,能够准确地指定...
postgrescolumnreferenceidisambiguous 在执⾏函数时会出现该问题 解决办法:在查询时为表格指定别名,并且查询字段指定表名如:table.field_name 不过说来也奇怪,我就查⼀个表,怎么会出现模糊的字段呢 -- 销售报表查询条件，汇总⽅式可能会有多种情况，/* ⽉环⽐：1. 每个客户的环⽐，2. 每个销售⼈员...
Hi all, I’m using the script below on a property change event of a PLC tag and I get the error column reference “serialnumber” is ambiguous. Anybody know what that means? Thanks! if currentValue.value == True: la…
关联查询报错 PSQLException: ERROR: column reference "id" is ambiguous 原因分析: 关联查询时两个表均有id 解决方案: 设置表别名 a,b 若返回对象只需要取a的id ,select a.id 即可,如图.XXMapper.xml 同理 PSQLException: ERROR: column reference "XX" is ambiguous 分类: 项目报错-bug 标签: 数据...
/* 月环比: 1. 每个客户的环比, 2. 每个销售人员的环比 3. 每种产品的环比 年同比: 客户,销售员,产品,基本上不会有三个维度一起查看的情况。 数据累加: 这个可以在两种表中添加; 所以基础表格字段:销售员,客户,产品,时间,销量,销售额 根据用户选择的条件不同进行不同维度的汇总。
query_simple.sql:5:3: column reference "title" is ambiguous After I found out the first time what the problem is the workaround is not too difficult but it can be very time consuming to find the right place because the error message does not necessarily point to the right place and the...
SQLSTATE:42702 and 42P09 (Class 42 — Syntax Error or Access Rule Violation: ambiguous_column and ambiguous_alias) Urgency:low Example Postgres Log Output: ERROR: column reference "z" is ambiguous at character 8 STATEMENT: SELECT z FROM x, y ...
PG::AmbiguousColumn: ERROR: column reference "name" is ambiguousというエラーが出ます. 解決策 上記のエラーはnameカラムが曖昧だというエラーです。 そこでカテゴリモデルのスコープメソッドにテーブル名を付けます。 category.rb classCategory<ApplicationRecordhas_many:category_users,dependent: ...
Hi, I have some simple questions created on metabase and PostgreSQL, and after the migration for the latest version i'm getting the following error: I found the generated query on postgresql logs as the following: select count(*) as "cou...
I am generating my query dynamically And this is something I have before passing parameters and getting this error pq: column reference "deleted_at" is ambiguousMy query isSELECT COUNT(*) FROM issues i JOIN vehicles v ON (v.id = i.vehicle_id) WHERE i.asset_owner_id = :asset_owner_id...