How to sum array column in mysql?

@dana 

To sum the values in a column of an array in MySQL, you can use the SUM() function. Here's an example of how to do it:

Assuming you have a table named myTable with a column named myColumn, you can run the following query to sum the values in the myColumn column:

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SELECT SUM(myColumn) as sumTotal FROM myTable;

This query will calculate the sum of all the values in the myColumn column and display the result as a single row with the column alias sumTotal.