It's has to be related to the LIMIT because, if I only use a single table in a classic way, my counter is always equal to 10 (unless it's the last page, of course). Ok if it's not necessarily equal to 10 for the last page because I get what's left from the list but getting 20 and 23 for page 2 and page 3 doesn't make any sens to me. I expect the $counter to be equal to 10, whatever the page but: Naturally if the complete result set has less rows than the fix number we put in the LIMIT. While ($result = mysql_fetch_array($request)) In order to constrain the number of rows in the result set of a SELECT query, the LIMIT clause can be used together with one or two positive integers as. MySQL provides an equivalent LIMIT clause, whereas Oracle provides ROWNUM clause for the SELECT statement to restrict the number of rows returned by a query. LIMIT is used to restrict the result set to a fixed number of rows. This is what I have so far: $from = (($page_number-1)*10) The limit is an offset as I use a pagination. If you are coming from a Linq background here is a bonus for you.I have 3 tables with the exact same structure and I need to query them as one big table, order and limit this big table as a whole. Var posts = new Query("Posts").OrderByDesc("Date").ForPage(3, 50) Skip & Take Note: ForPage is 1-based so pass 1 for the first page //:playground Var posts = new Query("Posts").OrderByDesc("Date").ForPage(2) īy default this method will return 15 rows per page, you can override this value by passing an integer as a 2nd parameter. You can use the ForPage method to easily paginate your data. In MySql SELECT * FROM `Posts` ORDER BY `Date` DESC LIMIT 10 OFFSET 5 Data pagination In PostgreSql SELECT * FROM "Posts" ORDER BY "Date" DESC LIMIT 10 OFFSET 5 In Legacy Sql Server (< 2012) SELECT * FROM (SELECT *, ROW_NUMBER() OVER (ORDER BY DESC) AS FROM ) AS WHERE BETWEEN 6 AND 15 Greg Kemnitz, Postgres internals, embedded device db internals, MySQL user-level Answered Author has 4.9k answers and 13. The difference between UNION and UNION ALL is that UNION will omit. In Sql Server SELECT * FROM ORDER BY DESC OFFSET 5 ROWS FETCH NEXT 10 ROWS UNION merges the contents of two structurally-compatible tables into a single combined table. Var query = new Query("Posts").OrderByDesc("Date").Limit(10).Offset(5) If you want to skip some records, use the Offset method. If the user tries to log in after it has made more than 100 concurrent logins, an error message will appear. In MySql SELECT * FROM `Posts` ORDER BY `Date` DESC LIMIT 10 Skipping records (Offset) 1 2 mysqld maxuserconnections 100 In this case, this will restrict all users to only 100 concurrent logins. In PostgreSql SELECT * FROM "Posts" ORDER BY "Date" DESC LIMIT 10 See also Section 13.2.11, Parenthesized Query Expressions. The parser accepts parentheses around query expressions. In Sql Server SELECT TOP (10) * FROM ORDER BY DESC STRAIGHTJOIN now permits a USING clause, similar to other inner joins. Var query = new Query("Posts").OrderByDesc("Date").Limit(10) Limit and Offset allows you to limit the number of results returned from the database, this method is highly correlated with the OrderBy and OrderByDesc methods.
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