I am using Hibernate3 with spring application.
I introduced a column in my existing table with many to one relationship with the addition in the .hbm file as mentioned below:
<many-to-one name="qualityStatus" column="quality_status"
class="model.PurchaseStatus" lazy="false" fetch="join"/>
The corresponding object to this hbm has a property of type 'PurchaseStatus' and field name as 'qualityStatus'.
Now when i try fetching the data from the table representing the above object with the query:
List<Long> dnIds = session.createQuery("select dnItem.dnId from DeliveryNoteItem dnItem where dnItem.qualityStatus!=? and dnItem.qualityStatus!=? and dnItem.qualityStatus!=?")
.setInteger(0,1)
.setInteger(1,5)
.setInteger(2,7)
.list();
i get an error saying as 'java.sql.Exception: Unknown column 'deliveryno0_.quality_status' in 'where clause'
I get this error when deployed on test server but when i check the same thing on my local server i works fine as well when i just run this query directly on the database on the test server it returns me result. So it confirms that the database on the test server is alright. It is only when it executes through the application on the test server i am getting this error.
Can anybody let me know what can be the reason or how do i debug this out.
Thanks in advance. Looking forward for replies.
If you really have a quality_status column in your database, then you should make sure you have the most recent version of your application deployed on the test server, and make sure that the connection url of hibernate really points to the test database.
This is not a hibernate problem, not a programming one. It is environmental - check your configurations and redeploy.
Related
I have SQLite and MySQL installed on my local and development machine respectively. Following is working fine on my local machine(with SQLite):
select_single = {'date': "strftime('%%Y-%%m-%%d',projectName_Modelname.created)"}
queryset.extra(select=select_single)
But since strftime doesn't work with MySQL(link), I tried using DATE_FORMAT() as suggested in given link and other places too.
Though now when I execute below:
select_single = {'date': "DATE_FORMAT(projectName_Modelname.created, '%%Y-%%m-%%d')"}
queryset.extra(select=select_single)
Following error comes:
DatabaseError: (1054, "Unknown column 'projectName_Modelname.created' in 'field list'")
where 'created' is Datetime field in Django model 'Modelname' of app 'projectName'
To debug when I replace projectName_Modelname.created with NOW() no error comes. I have also tried just Modelname.created instead of projectName_Modelname.created though with no benefit?
Note: I am using Django1.5.5
I think it should be something like:
date_raw_query = {'date': "date_format(created, '%%Y-%%m-%%d')"}
and then try
queryset.extra(select=date_raw_query)
Hope that works in your setup. I have tried this on Django 1.7 and MySQL and seems to be working.
Also remember that if SQL errors start coming up, you can always do a print queryset.extra(select=date_raw_query).query to see what might be going wrong.
And when it comes to writing compatible code between SQLite and MySQL like this one, writing a custom MySQL function has been suggested here
But I would suggest otherwise. It's better to have a similar dev environment with MySQL setup in local and also, upgrade Django as soon as possible. :P
I'm experiencing a strange bug with the way Django Test framework operates.
When using SQLite Database Backend, all of the tests crash with the following error:
File "[]/core/tests/test_admin.py", line 91, in setUpSomething
content_type = ContentType.objects.get(app_label='core', model='SomeModel')
File "[]/lib/python2.7/site-packages/django/db/models/manager.py", line 151, in get
return self.get_queryset().get(*args, **kwargs)
File "[]/lib/python2.7/site-packages/django/db/models/query.py", line 310, in get
self.model._meta.object_name)
DoesNotExist: ContentType matching query does not exist.
However, the same code executes well under MySQL backend.
Clearly Django should make these functions agnostic of the backend used?
I had the same problem and I have no idea if my solution will be helpful, but it solved my issue, so here goes.
In my application code, I was attempting to query ContentType instances in the following way:
email = ContentType.objects.get(app_label="users", model="EmailAddress")
This worked fine with our actual MySQL database, but failed in test under a SQLite test database. However, if I switched the model definition to lowercase, it worked in both places:
email = ContentType.objects.get(app_label="users", model="emailaddress")
My guess was that this may have to do with the default collation in MySQL of case-insensitivity, so the first query should not have worked if I were comparing case-sensitively.
Indeed, when I looked at my database, all the model labels in the django_content_type table were lowercase and SQLite cares (by default) about case, so my queries in my tests were legitimately failing.
I have completed migrating database from sqlserver to mysql but it seems to have problems in rails. When i fetch record in rails console for eg:
<AuthAdmin:0xb6e506f8 #attributes={"Status"=>"1", "LastUpdateSeqNo"=>nil, "CreationDate"=>"2005-08-03 22:53:57", "AuthAdminID"=>"8987", "PropertyID"=>nil, "Password"=>"trustbss", "LastUpdate"=>"2012-07-12 05:15:02", "UserType"=>"0", "LoginName"=>"dev"}
Now attributes such as CreationDate and AuthAdminID suppose to be date and integer are displaying as string.But when I do
AuthAdmin.find(:first).AuthAdminID.class output is Fixnum
You can check record given above,it shows string. Now when i do arithmatic operation in my views caught issue string can't be coerced into Fixnum.Explicitly changing everything to their own TYPE is a very bad idea.
Hope that explain my problem.
Look like no one come across this problem.
i am currently working in C# windows application using Entity mysql database. while trying to preview value datatable in the in the *.xsd file i am getting "Unknown Cloumn 'labourname' in fieldlist" error dialog box.
But i run the Same query in the mysql i am getting the correct result.There i find the labourname column.
Pls anyone one tell me why i am getting this error.
if you are comparing this column name in your C# code then make sure the strings are in same case on either side of comparison.
I have a lot of services which query the database. All of them work fine but one service calling a stored procedure gives me following error:
Could not find server 'dbo' in
sys.servers. Verify that the correct
server name was specified. If
necessary, execute the stored
procedure sp_addlinkedserver to add
the server to sys.servers.
I have not idea why all the other stored procedures work fine and this one not...
By the way, I use SubSonic as data access layer.
Please run select name from sys.servers from the server which you mentioned as default server in configuration file.
Here in name column values should match with your server names used in the report query.
e.g serverXXX.databasename.schema.tablename
serverXXX should be there in the result of select name from sys.servers otherwise it gives error as got.
It sounds like there is an extra "." (or two) in the mapping - i.e. it is trying to find server.database.schema.object. Check your mapping for stray dots / dubious entries.
Also make sure that the server name matches what you think it is. If you rename the host that SQL Server is running on, you need to rename the SQL Server, too.
http://www.techrepublic.com/blog/datacenter/changing-the-name-of-your-sql-server/192
I had another issue with the same exception so I'll post here if someone stumble upon it:
Be careful if you specify the server name in synonyms. I had a different server name on my staging machine and production and it caused the same 'cannot find server'-error.
(Guess you shouldn't use synonyms that much anyway but it's useful in some migration scenarios)
In my case i was facing same issue with following ,
SqlCommand command = new SqlCommand("uspx_GetTemplate", connection);
but after adding square bracket to stored procedure name it get solved.
SqlCommand command = new SqlCommand("[uspx_GetTemplate]", connection);