MySQL join 1 record in table A to many in table B as a single row

Question

I want to query across two tables: members and payments .

One member record could join with many payments. However, I need each payment record to be added as an additional column as opposed to an additional row.

Here is a simplified example:

members

member_id | first_name | last_name
5         | John       | Smith

payments

payment_id | member_id | pay_type   | amount
1          | 5         | VISA       | $20
2          | 5         | Mastercard | $40
3          | 5         | AMEX       | $10

Desired query result

member_id | first_name | last_name | payment_id1 | pay_type1 | amount_1 | payment_id2 | pay_type2  | amount_2 | payment_id3 | pay_type3 | amount_3
5         | John       | Smith     | 1           | VISA      | $20      | 2           | Mastercard | $40      | 3           | AMEX      | $10

A single row as a result, creating columns for each row in the payments table. Thanks!

Answer 1

您最有可能使用数据透视表来实现所需的目标： http : //en.wikibooks.org/wiki/MySQL/Pivot_table