WebSep 21, 2012 · 1. This is quite simple do The inner join and then group by user_id and use max aggregate function in payment_id assuming your table being user and payment query can be. SELECT user.id, max (payment.id) FROM user INNER JOIN payment ON (user.id = payment.user_id) GROUP BY user.id. Share. Webrow_number will always return a single row by arbitrarily breaking the tie. If you want to fetch rows other than the first row per id, then you'll need to think about ties and you'll get different behavior from rank and dense_rank. If two rows are tied for first, dense_rank will assign the third row a rnk of 2 while rank will assign it a rnk of 3.
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WebFeb 25, 2024 · The below Sample SQL query helps you real use of above phrase. FETCH FIRST 1 ROW ONLY is as efficient as a correlated sub-query, and it is a more straightforward coding style. Fetch First 1 Row Only: In the below query, when single row is found, you will get SQL CODE as zeros. So that you can set flag as rows found to true. WebNov 5, 2013 · 1 This is a highly optimized statement. Your not getting any data from tableb and your going for first row so you just need exists clause. select a.* from tablea a where exists (select * from tableb b where a.fielda = b.fielda and a.fieldb = b.fieldb and b.code = a.code and b.field2 = 'd' and b.field1 <> '3') Share Improve this answer Follow survey questionnaire for business owners
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WebJul 9, 2016 · Thanks. A generic way to do this in SQL is to use the ANSI standard row_number () function: select t.* from (select t.*, row_number () over (partition by email order by id desc) as seqnum from t ) t where seqnum = 1; Using the above query as a derived table you can obtain the whole record: SELECT t1.*. Web2 days ago · Here, the WHERE clause is used to filter out a select list containing the ‘FirstName’, ‘LastName’, ‘Phone’, and ‘CompanyName’ columns from the rows that contain the value ‘Sharp ... WebIf you wish to fetch only one result you could use fetchField with db_query to fetch the result, e.g.: ... in Drupal there is a function that return an object that you construct with him the SQL query - https: ... , In your case If it fetches only 1 row and 1 … survey questions about waste management