我希望结果集包含来自同一列的2列数据。
select cust,date,data
from cust_a1 where ai_code between '17' and '19';
这将返回多行
1234567 | 04-04-2011 | special offer
1234567 | 04-04-2011 | cheep offer
1345678 | 04-04-2011 | friday offer
1345678 | 04-04-2011 | special offer
我想像这样塑造：
1234567 | 04-04-2011 | special offer | cheep offer
1345678 | 04-04-2011 | special offer | friday offer
如何做到这一点？