Sql select rows containing part of string

Question

I want to write a comparation procedure (t-sql) for site seo.

I have a table with field 'url' (nvarchar()) that contain a part of site url's. Ex: 'mysyte.com/?id=2'. Also this table for each url contains metadata, that i need to extract.

The main problem is that full url on site looks like 'mysyte.com/?id=2&region=0&page=1', and i just need to ignore everething, except url in table:

I mean: 'mysyte.com/?id=2' => is a part of 'mysyte.com/?id=2&region=0&page=1'

score 85 · Answer 1 · edited Mar 11 '22 at 18:10

85

You can use the LIKE operator to compare the content of a T-SQL string, e.g.

SELECT * FROM [table] WHERE [field] LIKE '%stringtosearchfor%'

The percent character '%' is a wild card- in this case it says return any records where [field] at least contains the value "stringtosearchfor".

edited Mar 11 '22 at 18:10

Josh Correia

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answered Apr 12 '10 at 11:23

WiseGuyEh

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To search for a string that begins with a certain prefix, you can do LIKE 'prefix%' – tschwab Jun 23 '15 at 13:50
What about if the haystack may or may not start with the needle? Any difference then? – chaoskreator Mar 26 '19 at 04:57

score 7 · Accepted Answer · answered Apr 12 '10 at 11:23

7

SELECT *
FROM myTable
WHERE URL = LEFT('mysyte.com/?id=2&region=0&page=1', LEN(URL))

Or use CHARINDEX http://msdn.microsoft.com/en-us/library/aa258228(v=SQL.80).aspx

answered Apr 12 '10 at 11:23

Jonathan

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score 6 · Answer 3 · answered Apr 12 '10 at 11:23

6

you can use CHARINDEX in t-sql.

select * from table where CHARINDEX(url, 'http://url.com/url?url...') > 0

answered Apr 12 '10 at 11:23

chris

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Sql select rows containing part of string

3 Answers3

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