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Joining Tables with Ambiguous Columns: Selecting Data from Multiple Replicated Tables
Your challenge of retrieving data from multiple tables with an identical structure but separated for localization raises an ambiguity when specifying columns in a WHERE clause. MySQL cannot determine which table to reference when comparing an ambiguous column, such as 'genre' in your query.
Solution: Utilize the UNION Operator
To resolve this ambiguity, you can employ the UNION operator. UNION combines the results of two or more SELECT statements, effectively creating a virtual table with the union of all rows from the individual tables.
Modified Query:
Explanation:
This modified query separates the SELECT statements for each involved table. Each subquery retrieves data from a specific table, ensuring there is no ambiguity in the 'genre' column reference. The UNION operator then combines the results into a single result set, providing you with the desired data from multiple tables.
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