MySQL中的动态交叉表查询

我在使用交叉表查询从SQL Server切换到MySQL时遇到问题

假设我有一张这样的桌子：

| ID | BANKID | 1MONTH |        3MONTHS |        6MONTHS |       10MONTHS |       12MONTHS | 18MONTHS |       24MONTHS |       30MONTHS |       36MONTHS |
|----|--------|--------|----------------|----------------|----------------|----------------|----------|----------------|----------------|----------------|
|  1 |      1 |      3 | 2.900000095367 | 2.799999952316 | 2.700000047684 | 2.599999904633 |      2.5 | 2.400000095367 | 2.299999952316 | 2.200000047684 |
|  2 |      2 |      5 | 4.900000095367 | 4.800000190735 | 4.699999809265 | 4.599999904633 |      4.5 | 4.400000095367 | 4.300000190735 | 4.199999809265 |

BankID           1          2
1 Month          3          5
3 Months         2.9        4.9
6 Months         2.8        4.8
10 Months        2.7        4.7
12 Months        2.6        4.6
18 Months        2.5        4.5
24 Months        2.4        4.4
30 Months        2.3        4.3
36 Months        2.2        4.2

我想这样展示它：

| ID | BANKID | 1MONTH |        3MONTHS |        6MONTHS |       10MONTHS |       12MONTHS | 18MONTHS |       24MONTHS |       30MONTHS |       36MONTHS |
|----|--------|--------|----------------|----------------|----------------|----------------|----------|----------------|----------------|----------------|
|  1 |      1 |      3 | 2.900000095367 | 2.799999952316 | 2.700000047684 | 2.599999904633 |      2.5 | 2.400000095367 | 2.299999952316 | 2.200000047684 |
|  2 |      2 |      5 | 4.900000095367 | 4.800000190735 | 4.699999809265 | 4.599999904633 |      4.5 | 4.400000095367 | 4.300000190735 | 4.199999809265 |

BankID           1          2
1 Month          3          5
3 Months         2.9        4.9
6 Months         2.8        4.8
10 Months        2.7        4.7
12 Months        2.6        4.6
18 Months        2.5        4.5
24 Months        2.4        4.4
30 Months        2.3        4.3
36 Months        2.2        4.2

如何在MySQL中创建这种交叉表

您可以在此处测试数据：

谢谢大家!

使用以下查询

Set @Sq = NUll;
Set @S =Null;
SET @sql = NULL;

SELECT
    GROUP_CONCAT(DISTINCT
    CONCAT(
      'sum(CASE WHEN id = ',
      BankID,' THEN val end) AS "',
      BankID,'"')

    )
into @Sql
FROM
  bankdeposit;


SELECT
  GROUP_CONCAT(DISTINCT
    CONCAT(
      'select id, ''',
      c.column_name,
      ''' as Bankid, ',
      c.column_name,
      ' as val 
      from bankdeposit'
    ) SEPARATOR ' UNION ALL '
  ) into @xSq
FROM information_schema.columns c
where c.table_name = 'bankdeposit'
  and c.column_name not in ('id','BankID',
 'CreateDate', 'CreateBy', 'ModifyDate', 'ModifyBy',
 'totalLoan','TotalDeposit','EstablishedYear','NumberOfStore')
order by c.ordinal_position;


SELECT
  GROUP_CONCAT(DISTINCT
    CONCAT(
      'select id, ''',
      c.column_name,
      ''' as Bankid, ',
      c.column_name,
      ' as val 
      from bankdeposit'
    ) SEPARATOR ' UNION ALL '
  ) into @S
FROM information_schema.columns c
where c.table_name = 'bankdeposit'
  and c.column_name in ('totalLoan','TotalDeposit',
  'EstablishedYear','NumberOfStore' )
order by c.ordinal_position;


select CONCAT('select Bankid,',@sql,' from(select id, Bankid, val
           from
           (', @xSq,',',@S,') x  order by id) xx group by Bankid 
           order by length(BankID),BankID');

PREPARE stmt FROM @xSq;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

---

Hi Sathish，我将此查询输入到我的真实数据库中，但它不起作用（我的真实数据库中的列比这多）。当联合所有块时会导致错误。上面说“[Err]1054-字段列表中的未知列'id'”。请在这里检查：该表有id列@Pengan@Pengan检查这把小提琴。您在

c中给出了ignore columns name。column\u name不在（'id'，'BankID'）

Hi，Sathish，很抱歉再次打扰您。我想显示除“CreateDate”、“CreateBy”、“ModifyDate”、“ModifyBy”之外的所有列，然后我将其放入查询“c.column\u name not in（'id'，'BankID'）”。然而，当我输入这个时，它在第1行的“'c.column\u name not in（'id'，'BankID'）”附近用正确的语法表示：c.column\u name not in（'id'，'BankID'）”。你能帮我修一下吗？非常感谢你的帮助！请点击：@Pengan查看我的查询。现在我要改变它。试着告诉我