How to left join in presto sql?

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by addison , in category: MySQL , 5 months ago

How to left join in presto sql?

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1 answer

by wilmer.lemke , 5 months ago

@addison 

To perform a left join in Presto SQL, you can use the following syntax:

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SELECT columns
FROM table1
LEFT JOIN table2 ON table1.column_name = table2.column_name;


In this syntax:

  • SELECT columns specifies the columns you want to retrieve in the result set.
  • FROM table1 specifies the first table you want to include in the join.
  • LEFT JOIN table2 specifies the second table you want to include in the join, and ON table1.column_name = table2.column_name specifies the columns on which the tables will be joined.


The LEFT JOIN keyword ensures that all records from the left table (table1) will be included in the result set, even if there are no matching records in the right table (table2).

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