Możesz użyć dynamicznego SQL do dynamicznego obracania, np.
SET @sql = NULL;
SET @date = '2020-11-30';
SELECT GROUP_CONCAT(
CONCAT(
'SUM(CASE WHEN Partners = "', Partners,'" THEN Amount ELSE 0 END ) AS'
,Partners
)
)
INTO @sql
FROM ( SELECT DISTINCT Partners FROM BPFinal WHERE Date = @date ) AS b;
SET @sql = CONCAT('SELECT Branch,',@sql,
' FROM BPFinal
WHERE Date = "',@date,'"'
' GROUP BY Branch');
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;