如何将mysql结果行存储为保存表格式化字符串的变量？

SELECT CONCAT_WS('\t', column1, column2, column3) AS formatted_row
FROM your_table
WHERE condition;

SELECT GROUP_CONCAT(formatted_row SEPARATOR '\n') AS formatted_rows
FROM (
    SELECT CONCAT_WS('\t', column1, column2, column3) AS formatted_row
    FROM your_table
    WHERE condition
) AS subquery;

SET @result = (
    SELECT GROUP_CONCAT(formatted_row SEPARATOR '\n') AS formatted_rows
    FROM (
        SELECT CONCAT_WS('\t', column1, column2, column3) AS formatted_row
        FROM your_table
        WHERE condition
    ) AS subquery
);