在大量的文本中找到许多关键字的最佳可缩放方法?

Ever few minutes around 500 paragraphs are supposed to be submitted to the database in a table called "Content" (this number will go to over 2,500 in a few months). There is another table called "Keywords" which has over 4,000 rows (and is expected to grow to over 10,000).Ever few minutes around 500 paragraphs are supp