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good afternoon. I have an error in paging query when I pass a search parameter. Here’s the problem: When I’m on page 2 and I do a search for an item on page 20 of mine sql
returns nothing. Follows the sql
:
SELECT *
FROM tabela
WHERE UPPER(name) LIKE UPPER(‘%cadern%’)
LIMIT 10
OFFSET (2 - 1) * 10
That one LIKE
returns two lines, but the OFFSET
is to return from line 10 so always comes empty.
Someone’s had this problem before?
I don’t understand your problem. Do you, by any chance, mean that throughout your table there are only 2 lines that meet the condition expressed in clause WHERE? If so then your OFFSET is correct. LIMIT and OFFSET apply to the SELECT result.
– anonimo
This with this LIKE only returns two lines, but because I am on page 2 of my web application the calculation of OFFSET is wrong. Because when I use this same filter on page 1 of the web application the OFFSET calculation works. The calculation I use is this: (pageSize * (page -1))
– EA.Jsp.Android
So the problem is not with Postgresql but with your application that should not be using the correct value in the SQL command.
– anonimo