标题
在mysql中,我有一个包含两列的表,一个是productID,另一个是这个特定产品的评论(评论是一两句话)。表是这样的:
Productid | reivew
------ | ------
ciwnfien | Read between the lines. The visual is what you ar...
ackjdsnfi | This planner has helped our family become so much...
asinfnn | I adore this book - What I like most is that it i...
..... .....
我想通过Productid创建另一个表,该表有五个额外的列,每个列显示用于描述该产品的最常用词。我期待的结果将是:
Productid | word 1 | word 2 | word 3 | word 4 | word 5
djneihev | good | useful | quick | expensive | light
zknwoduc | nice | convenient | cheap |User-friendly | common
sqnowsf | low-quality| awful | bad | too cheap | dangerous
还请告诉我如何摆脱“停止词”,如“和”,“the”。(在结果中避免它们) 谢谢!!!