Question

How can I seek those rows which contain some text and get a mark depending on how many times this text was repeated?

• I have SQL Server CTP3 installed but I don’t know where to start
• Maybe I can use like %criteria% and then count how many times the text is repeated on each record but it doesn’t seem very efficient.
• It would be great if there was any routine on SQL Server for doing it

Answer 1

If I understand what you are trying to do, I suggest you use a text to word list function. There’s a few examples here. If using full-text indexing, you could even use CONTAINSTABLE. You can then join to this table value function and aggregate the count.

 Select t.*, 
    (Select count(w.*) 
     From dbo.getWordList(t.text) w
     Where w.word like '%criteria%') as Count
 From MyTable t
 Where t.text like '%criteria%'

Alternatively you could just solve the entire problem in a CLR function.