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How to join same table having same Name and data everything is same how to join in SQL?
How to join same two tables
6 Respuestas
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select * from t, t;
You need to explain more, to get a meaningful response. What kind of data is in the table and which key you want to connect it to itself?
A typical case of self join, is a table of employees, where every employee has also a manager, so manager_id points to employee_id of the same table.
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How to join two similar tables that it?
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You are not adding any new information, just repeated your own question. Maybe try some reading.
https://www.w3resource.com/sql/joins/perform-a-self-join.php
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Two same table cannot join
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It's against codds rules
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Understand