WebOct 4, 2024 · SELECT /*+ FIRST_ROWS */ * FROM emp; Example SELECT /*+ FIRST_ROWS(10) */ employee_id, last_name, salary FROM emp WHERE … WebWithout knowing exactly how Appian's paging with Oracle works it's possible that the FIRST_ROWS hint is causing your observed issues so the simple (and unhelpful) answer is that you shouldn't use it. I assume your sortInfo is pointing to the primary key field in the view and you've confirmed that all your data rows are unique?
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WebHints in the first component query apply only to its optimization, not to the optimization of the second component query. For example, in the first week of 2015 you query current year and last year sales. You apply … WebYou use the FIRST_ROWS (n) hint in cases where you want the first number ( n) of rows in the shortest possible time. For example, consider the following PL/SQL block that uses a cursor to retrieve the first 10 hits of a query and uses the FIRST_ROWS (n) hint to … qbo for non profit
Improved Response Time with FIRST_ROWS(n) Hint for ORDER
WebNov 25, 2013 · FIRST_ROWS ( n ): This hint instructs the optimizer to select a plan that returns the first n rows most efficiently. 1 2 3 SELECT /*+ FIRST_ROWS (10) */ empno, ename FROM emp WHERE deptno = 10; You may also want to read up about FIRST_ROWS_1, FIRST_ROWS_10 and FIRST_ROWS_100. WebApr 26, 2024 · To get one arbitrary row from the table you simple use the following query select * from simpletable where rownum = 1; Here is the output (edited for brevity) you get from SQL*Plus with setting set autotrace traceonly to … WebJan 1, 2024 · select * from ( select * from the_table order by object_id ) where rownum <= 10; It's not pretty, but it is effective. In fact, it is very effective if the column (or columns) in the ORDER BY have a b-tree index. Oracle reads the index entries in order so that it can avoid having to sort the entire result set. qbo file chase credit card