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JPQL Question - empty string [message #1066318]

Tue, 02 July 2013 03:28

Eclipse User

Hi,

in my SQL Client i used the following statement:

select * from mytable where value = ''

--> returns resultset

====================================

the JPQL pendant would be:

select m from entityname m where m.value = ''

--> returns nothing

====================================

but this works:

select m from entityname m where m.value = ' '

is this a bug?

Cheers
Reiner

Re: JPQL Question - empty string [message #1066640 is a reply to message #1066318]

Wed, 03 July 2013 10:20

Eclipse User

My guess is your JDBC driver is doing some odd translation of the SQL. You can enable logging to see the SQL that EclipseLink generates.
EclipseLink does not do anything special with '' or ' '.

Also try using a parameter instead of inlining the string.

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