【转置】使用mysql转置表格行和列

 1、原始表

 

2、查询结果表

 

3、查询语句

1 SELECT
2 year1,
3 SUM( CASE WHEN mon= 1 THEN account END ) AS m1, 4 SUM( CASE WHEN mon= 2 THEN account END ) AS m2, 5 SUM( CASE WHEN mon = 3 THEN account END ) AS m3, 6 SUM( CASE WHEN mon = 4 THEN account END ) AS m4 FROM 8 dt 9 GROUP BY year1;