How to sort PostgreSQL according to the length of a string

PostgreSQL sorts according to the length of string

In PostgreSQL, you can useLENGTH functionto get the length of the string and sort it according to this length. The LENGTH function returns the number of characters in the string.

Here is a basic SQL query example that sorts rows in a table based on the length of some_column string column:

SELECT some_column
FROM your_table
ORDER BY LENGTH(some_column);

This will sort the results in ascending order by the length of the string in some_column. If you want to sort by descending order of length, you can use the DESC keyword:

SELECT some_column
FROM your_table
ORDER BY LENGTH(some_column) DESC;

If your string column contains NULL values ​​and you want these NULL values ​​to be last, you can use the NULLS LAST option:

SELECT some_column
FROM your_table
ORDER BY LENGTH(some_column) ASC NULLS LAST;

Instead, if you want the NULL value to be ahead, you can use the NULLS FIRST option:

SELECT some_column
FROM your_table
ORDER BY LENGTH(some_column) ASC NULLS FIRST;

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