[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-465) order by nulls first / last

sridhar paladugu (JIRA) noreply at atlassian.com
Fri Sep 8 11:58:25 EDT 2006


    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-465?page=comments#action_24388 ] 

sridhar paladugu commented on HHH-465:
--------------------------------------

We are working on a large project using Hibernate, and really would like to see this issue fixed. 

I do not have problem in using some oracle native functions in order by clause in HQL except  "NULLS LAST". 

Hibernate while generating oracle sql ignoring th key word (NULLS LAST) and generating the SQL without the keyword present in order by clause.

Following is a sample query i am using

HQL:  " select me.name from MyEntity me order by me.name NULLS LAST"

generated SQL: select TBL.NAME FROM MyTable TBL ORDER BY TBL.NAME.

Thanks
Sridhar



> order by nulls first / last
> ---------------------------
>
>          Key: HHH-465
>          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-465
>      Project: Hibernate3
>         Type: Improvement

>   Components: core
>     Versions: 3.0.3
>     Reporter: Anthony Patricio
>     Priority: Minor

>
>
> support of nulls first / last in order clause
> "NULLS LAST" is part of the SQL 99 standard. 
> The syntax is as follows: 
> ORDER BY [COLUMN NAME] [ASC | DESC] [NULLS FIRST | NULLS LAST] 
> In different DBs, the sorting of nulls relative to other values is handled differently. 
> PostgreSQL - Nulls are considered HIGHER than non-nulls. 
> DB2 - Higher 
> MSSQL - Lower 
> MySQL - Lower 
> Oracle - Higher 
> The following DBs have supported this functionality: 
> DB2 V7 
> Oracle 9i 
> PostgreSQL, MySQL, SQLServer do not appear to support this from what I can gather.
> see http://forum.hibernate.org/viewtopic.php?t=942176&start=0&postdays=0&postorder=asc&highlight=

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