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Posted to commits@empire-db.apache.org by "Rainer Döbele (JIRA)" <em...@incubator.apache.org> on 2013/09/13 12:34:51 UTC
[jira] [Created] (EMPIREDB-192) Implement limitRows and skipRows
for Oracle
Rainer Döbele created EMPIREDB-192:
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Summary: Implement limitRows and skipRows for Oracle
Key: EMPIREDB-192
URL: https://issues.apache.org/jira/browse/EMPIREDB-192
Project: Empire-DB
Issue Type: Improvement
Affects Versions: empire-db-2.4.2
Reporter: Rainer Döbele
Assignee: Rainer Döbele
Currently only limitRows is supported for Oracle with the limitation of a potentially incorrect order of the rows.
Properly implement limitRows and skipRows by wrapping the select command like follows:
for limit rows only:
SELECT * FROM (
SELECT .... ORDER BY ...
) row_ WHERE rownum<={limit}
for limitRows and skipRows:
SELECT * FROM (SELECT row_.*, rownum rownum_ FROM (
SELECT .... ORDER BY ...
)) row_ WHERE rownum<={skip+limit}) WHERE rownum_>{skip}
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