How to get unique values from multiple-column values in mysql?

by mallory_cormier , in category: MySQL , a month ago

How to get unique values from multiple-column values in mysql?

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1 answer

Member

by lew , a month ago

@mallory_cormier 

There are a few ways to get unique values from multiple-column values in MySQL:

  1. Use the DISTINCT keyword: You can use the DISTINCT keyword in your query to get unique values from multiple columns. For example:
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SELECT DISTINCT column1, column2
FROM table_name;


  1. Use the GROUP BY clause: You can also use the GROUP BY clause in your query to group the results by a specific column and then get the unique values from the grouped results. For example:
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SELECT column1, column2
FROM table_name
GROUP BY column1, column2;


  1. Use the CONCAT function: If you want to get unique values from multiple columns combined, you can use the CONCAT function to concatenate the values of the columns and then use the DISTINCT keyword:
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SELECT DISTINCT CONCAT(column1, column2) AS combined_values
FROM table_name;


These are some of the ways you can get unique values from multiple-column values in MySQL. Choose the method that best suits your needs and query requirements.