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…
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 ...
postgres column reference "id" is ambiguous 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...
I'll look into this tomorrow but since the update to 2.2.0 I've noticed this issue on sentry; ProgrammingError at /app/model/1/ column reference "id" is ambiguous LINE 1: SELECT (CASE WHEN id='1' THEN 0 END) AS "ordering", "... It compla...
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
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: ...
PostgreSQL 解决 ON CONFLICT set column reference is ambiguous在本文中,我们将介绍如何解决 PostgreSQL 中的“ON CONFLICT” 子句中出现的 “set column reference is ambiguous” 错误。当在 ON CONFLICT 分句中设置列引用时,可能会出现引用模糊的情况,这可能导致语法错误或意外的结果。我们将...