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Published on 2010-03-24T11:23:30Z
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2010/03/24
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I'm not very good in SQL and HQL...
I have two domains:
class Hotel {
String name
}
class Room {
Hotel hotel
float price
}
How many hotels have at least one room ?
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select new UpdateCountDataBean(count(elements(am.actionId)) as noOfUpdates, am.pname as name) from ActivityMaster am group by am.pname
The UpdateCountDataBean is created by me while the second class i.e. ActivityMaster is POJO class.
java.lang.NullPointerException
at org.hibernate.hql.ast.tree…
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did i encounter a hibernate bug or do i have an error i dont see:
select enty.number from EntityAliasName enty
where enty.myId in
(
select cons.myId from Consens cons where cons.number in
(
select ord.number from Orders ord where ord.customer = :customer
and ord.creationDate…
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I've got a hibernate query I'm trying to get working but keep getting an exception with a not so helpful stack trace. I'm including the code, the stack trace, and hibernate chatter before the exception is thrown. If you need me to include the entity classes for MessageTarget and GrpExclusion let…
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Select top 1 from <tablename>
what is hql query for the above ?
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I have a Hibernate HQL question.
I'd like to write a subquery as a derived table (for performance reasons).
Is it possible to do that in HQL?
Example:
FROM Customer WHERE country.id in
(SELECT id FROM (SELECT id FROM Country where type='GREEN') derivedTable)
(btw, this is just a sample query so…
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Concatenating string is one of the most common tasks in SQL Server and every developer has to come across it. We have to concat the string when we have to see the display full name of the person by first name and last name. In this video we will see various methods to concatenate the strings. SQL…
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Earlier this week, I was delivering Advanced BI training on the subject of “SQL Server 2008 R2″. I had great time delivering the session. During the session, we talked about SQL Server 2010 Denali. Suddenly one of the attendees suggested his displeasure for the product. He said, even though…
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I am trying to install SQL Server on Windows 2012. I was able to finally get the wizard up and running after making some changes on the server, but now it fails no matter what I do with the following error:
TITLE: SQL Server Setup failure.
SQL Server Setup has encountered the following error:
…
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I need to detect which version of SQL I am dealing with to perorm various tasks, I need specifically detect if I am on SQL 2008 or SQL Azure.
How can I do this with detection code written in SQL?
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Here is the query:
INSERT INTO @TempTable
SELECT UserID,
Name,
Address1 =
(SELECT TOP 1 [Address] FROM
(SELECT TOP 1 [Address] FROM [UserAddress] ua INNER JOIN UserAddressOrder uo ON ua.UserID = uo.UserID WHERE ua.UserID = u.UserID
ORDER BY uo.AddressOrder ASC) q
ORDER BY AddressOrder…
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