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3 lip 2015 · I'm having difficulty in pulling the userID from joining these two tables. My goal is to find all vacation balance over 200 and all active userID but I keep getting an ambiguous column name for userID. My query does work if i try to pull anything else, but I want to pull UserID instead.
Ambiguous error means that you are calling a certain field in which exist in both Table and the SQL has no idea where to get it. Table 1 has a field (column) name “ID” Table 2 has a field (column) name “ID” as well. Example. SELECT [ID], [Name], [GenderId] FROM [dbo]. [TblPerson] AS A INNER JOIN [dbo].
5 paź 2020 · One of the simplest ways to solve an “ambiguous name column” error — without changing column name — is to give the tables you want to join an alias. This sends a clear information to the SQL Machine the columns are different.
27 gru 2023 · Namespace column names – Prefix columns with table name (e.g. user_name, address_name). Check for name collisions – Before joining new tables, scan for duplicate column names that may cause ambiguity.
30 wrz 2024 · If you’re getting an error that reads “Ambiguous column name“, followed by a column name, in SQL Server, it could be that you’re performing a join on two tables, but you’re not using the table names or aliases when referring to columns within those tables.
18 paź 2023 · The "Error: ambiguous column name: Name" in SQL happens when the same column name is found in multiple tables or parts of a query, making it unclear which one to use. This error is common in various situations, such as joining tables, using subqueries, and creating views.
The "Ambiguous Name Column" error in SQL occurs when joining tables that contain columns with the same name, leading to confusion for the SQL engine as to which column is being referenced. The article suggests using aliases for the tables as a straightforward solution to this problem.
