How to convert an SQL array to a string?

You can use the STRING_AGG function in SQL to convert an array into a string. This function will concatenate the values of a specified column or expression into a single string, separated by a specified delimiter.

For example, suppose there is a table named “numbers” containing a column called “number” that stores a set of numbers. To concatenate these numbers into a single string, you can use the following SQL query:

SELECT STRING_AGG(number, ',') AS concatenated_numbers
FROM numbers;

In this example, the STRING_AGG function concatenates all the numbers in the number column into a single string, using a comma as the separator. The final result will be a string containing all the numbers, similar to “1,2,3,4,5”.

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