Hi I have a problem generating a #query in my SpringBoot repo. Using hibernate.
My POJOs:
class Offer
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;
#ManyToMany
private List<Attribute> attributes;
#ManyToMany
private List<Offer> offers;
and
class Attribute
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private Integer id;
It works this way to get the "offer.offers by attribute". But now I want to enhance my query to get "offer offer.offers.attribute" an I strugle with it.
What I want is to find all Offers which have "Offer.attribute == 1" AND "all Offer.offers.attribute == 2"
Ending with this query:
#query
"SELECT o FROM Offer o "
+ "JOIN o.attributes a "
+ "LEFT OUTER JOIN o.offers oo "
+ "LEFT OUTER JOIN o.offers.attributes ooa " <-- Problem issue
+ "WHERE o.status = 1 "
+ "AND oo.status = 1 "
+ "AND a.id = 100 "
+ "AND ooa.id = 101 "
+ "GROUP BY o.id "
But upon compilation I get this exception:
org.hibernate.QueryException: illegal attempt to dereference collection
[offer0_.id.offers] with element property reference [attributes]
Now I wonder how to do it correctly?
Hope some SQL/Hibernate hero can help me.
Thanks in advance!
Gregor
Well... Iam one step further:
this query works:
#query
"SELECT o FROM Offer o "
+ "JOIN o.attributes a "
+ "LEFT OUTER JOIN o.offers oo "
+ "LEFT OUTER JOIN oo.attributes ooa " <-- referencin JOIN
+ "WHERE o.status = 1 "
+ "AND oo.status = 1 "
+ "AND a.id = 100 "
+ "AND ooa.id = 101 "
+ "GROUP BY o.id "
But now I get all results with at least on "Offers.offer.attributes == 101"
But I need all offers.offer having that attribute.
Any hints how to continue?
Related
Btw this is already working with a jdbc template based solution that I wrote. It's not me wanting to do the rewrite, it is the tec lead's idea. It is giving me a headache.
Lets not get into the discussion on why this is or isn't a good idea, but rather how to make it work.
in my repo
#Repository
interface Foo...extends JpaRepository
this works:
#Query(value = "SELECT t.td, em.ct, j.dsc AS bs, ct.dsc AS ct_name, "
+ "t.tn, et.dsc, f.f_id, f.f_life, f.fl_name, em.f_note "
+ "FROM ext_master em join tax t on em.td = t.td "
+ "join bs j on j.bs = t.bs "
+ "join ex_type et on em.ex_type = et.ex_type "
+ "join ct ct on ct.ct = em.ct "
+ "left join ex_f ef on em.td = ef.td and em.ct = ef.ct "
+ "left join f f on ef.f_id = f.f_id "
+ "WHERE em.ct in ( 'CC' ) "
+ "AND t.state IN ('FF','AK','AL','GA')"
+ "ORDER BY bs, t.tn", nativeQuery = true)
List<Object> getExtensionsByCustTypeAndState(#Param("custTypes") String custTypes, #Param("states") String states);
this doesn't returns empty result set
#Query(value = "SELECT t.td, em.ct, j.dsc AS bs, ct.dsc AS ct_name, "
+ "t.tn, et.dsc, f.f_id, f.f_life, f.fl_name, em.f_note "
+ "FROM extension_master em join tax t on em.td = t.td "
+ "join bs j on j.bs = t.bs "
+ "join exemption_type et on em.ex_type = et.ex_type "
+ "join ct ct on ct.ct = em.ct "
+ "left join ex_f ef on em.td = ef.td and em.ct = ef.ct "
+ "left join f f on ef.f_id = f.f_id "
+ "WHERE em.ct in ( :custTypes ) "
+ "AND t.state IN ('FF', :states)"
+ "ORDER BY bs, t.tn", nativeQuery = true)
List<Object> getExByCustTypeAndState(#Param("custTypes") String custTypes, #Param("states") String states);
both can have one or multiple values, I tried:
with both params like {:states} :#{#states}
with the value inside the param
surrounded by " or by '
passing the whole line in the parameter like "AND t.state IN ('FF','AK','AL','GA')"
passing the 'FF','AK','AL','GA' in the states param and subtituting the in the query with
+ "AND t.state IN ( :states)"
I did write a simple query to make sure I am getting the parameters passed in right. so that's working.
Can anyone write this right, so that the in statements work, or tell me why it is not possible.
Thank you.
You pass all the possible values in one parameter that's why you don't get the results you are expecting.
You have to change the where clause like this:
"WHERE em.ct in ( :custTypes1, :custTypes2, :custTypes3 .... :custTypesN) "
this ended up being the simplest solution
instead of :
"WHERE em.ct in ( :custTypes ) "
+ "AND t.state IN ('FF', :states)"
do:
"WHERE em.ct in :custTypes "
+ "AND t.state IN :states "
and add the FF to the states string on before I call the function.
Hello, I'm getting a syntax error on this sql statement, can anyone advise thanks
String sql = "Select tblStudent.*,tblSchool.*,tblAgents.* " +
"FROM tblStudent LEFT JOIN tblSchool " +
"ON (tblStudent.schoolID = tblSchool.schoolID) " +
"LEFT JOIN tblAgents " +
"ON (tblStudent.agentID = tblAgents.agentID) " +
"WHERE tblStudent.StudentID='" + studentID + "'";
I was hoping that I could do multiple joins
But I am getting a syntax error.
For access, parenthesis with multiple joins means the following. If you have three joins, there are two left parenthesis after the from. The last join does not have a right parenthesis.
String sql = "Select tblStudent.*,tblSchool.*,tblAgents.* " +
"FROM (tblStudent LEFT JOIN tblSchool " +
"ON (tblStudent.schoolID = tblSchool.schoolID)) " +
"LEFT JOIN tblAgents " +
"ON (tblStudent.agentID = tblAgents.agentID) " +
"WHERE tblStudent.StudentID='" + studentID + "'";
Access SQL injection has been covered in other threads .
String sql = "Select
tblStudent.StudentID,tblStudent.studentFirstName,"+
tblStudent.studentLastName,tblSchool.schoolName," +
tblAgents.agentFirstName,tblAgents.agentLastName " +
"FROM (tblStudent LEFT JOIN tblSchool " +
"ON (tblStudent.schoolID = tblSchool.schoolID)) " +
"LEFT JOIN tblAgents " +
"ON (tblStudent.agentID = tblAgents.agentID) " +
"WHERE tblStudent.StudentID=#studentID";
I believe your final SQL should look like this:
SELECT tblStudent.*
,tblSchool.*
,tblAgents.*
FROM tblSchool
RIGHT JOIN (
tblAgents RIGHT JOIN tblStudent ON tblAgents.agentID = tblStudent.agentID
) ON tblSchool.schoolID = tblStudent.schoolID
WHERE tblStudent.StudentID=111;
So, the VBA code for creating this SQL should be
Dim sql As String
sql = "SELECT tblStudent.* ,tblSchool.* ,tblAgents.* " & _
"FROM tblSchool RIGHT JOIN (" & _
"tblAgents RIGHT JOIN tblStudent ON tblAgents.agentID = tblStudent.agentID" & _
") ON tblSchool.schoolID = tblStudent.schoolID " & _
"WHERE tblStudent.StudentID=" & studentID
Here I assume that studentID is numeric field. Also I would recommend to do not use * for selecting the data from more than one table, otherwise column names may be unpredictable and as mentioned in comments, it will require additional resources, which won't be used.
First of all clarify that I am quite bad with databases, so please do not be to mean with my code :P
I have a problem with a query on hibernate using join and restrictions. I have a huge list of Assignments and some of them have an Asr object.
queryString.append("select new commons.bo.assignment.AssignmentAssociateExtract("
+ " assignment.id, assignment.contract.assignmentStatus,"
+ " assignment.contract.beginDate, assignment.contract.endDate,"
+ " assignment.contract.contractType, assignment.organizationalData.homeCountryKey,"
+ " assignment.organizationalData.hostCountryKey,"
+ " assignment.organizationalData.homeOrgUnitKey,"
+ " assignment.associate.globalIdAssociate,"
+ " assignment.associate.localIdHome,"
+ " assignment.associate.firstName,"
+ " assignment.associate.lastName)"
+ " from Assignment assignment left join assignment.asr asr"
+ " where assignment.contract.assignmentStatus.code = 5"
+ " and asr.homeAsrElegibility is not 'X'"
+ " or asr.homeAsrElegibility is null"
);
I was creating this query step by step. Before I created it without the join clause left join assignment.asr asr and it was working well but of course it was not showing the Assignments that did not have a Asr object. After I added the join clause, now it shows every single Assignment (10.000 records when those who have an assignmentStatus = 5 are just 4.000) and the restrictions like
where assignment.contract.assignmentStatus.code = 5
are not reflected in the result anymore.
So to sum up: I need a list with all assignments with assignmentStatus = 5 and asr.homeAsrElegibility != 'X'. But it needs to include also all assignments with assignmentStatus = 5 even if they do not have an Asr object.
Any ideas?? Thanks!
Parenthesis helps to clarify the situation.
queryString.append("select new commons.bo.assignment.AssignmentAssociateExtract("
+ " assignment.id, assignment.contract.assignmentStatus,"
+ " assignment.contract.beginDate, assignment.contract.endDate,"
+ " assignment.contract.contractType, assignment.organizationalData.homeCountryKey,"
+ " assignment.organizationalData.hostCountryKey,"
+ " assignment.organizationalData.homeOrgUnitKey,"
+ " assignment.associate.globalIdAssociate,"
+ " assignment.associate.localIdHome,"
+ " assignment.associate.firstName,"
+ " assignment.associate.lastName)"
+ " from Assignment assignment left join assignment.asr asr"
+ " where assignment.contract.assignmentStatus.code = 5"
+ " and ((asr.homeAsrElegibility is not null and asr.homeAsrElegibility is not 'X')"
+ " or (asr.homeAsrElegibility is null))"
);
I'm writing an inventory system in Unity 5.4 using SQLite and I can't figure out the syntax or find a good example anywhere. Ideas?
public void GetInventory(string _user, string _container) {
ExecuteSQL("SELECT User (Name), Modifier (ModName), Property (PropName) " +
"FROM User " +
"[INNER] JOIN Ownership " +
"[INNER] JOIN Container " +
"[INNER] JOIN Inventory " +
"[INNER] JOIN Item " +
"[INNER] JOIN Property " +
"[INNER] JOIN Modifier " +
"ON User (UserID) = Ownership (UserID) " +
"AND Ownership (ContainerID) = Container (ContainerID) " +
"AND Container (ContainerID) = Inventory (ContainerID) " +
"AND Inventory (ItemID) = Item (ItemID) " +
"AND Item (PropertyID) = Property (PropertyID) " +
"AND Item (ModifierID) = Modifier (ModifierID) " +
"WHERE User (Name) = '" + _user + "' AND Container (ContainerName) = '" + _container + "'", false);
}
I've tested the function with simpler commands and it works fine. And I've tested the function in a DB manager.
I'm not familiar with this flavor of the SQLite syntax and I can't find a good example anywhere. Can anyone point out where this is going wrong?
The error I'm getting is "No such function: User"
Your query syntax is off. This is how you should write this query:
SELECT t1.name,
t7.ModName,
t6.PropName
FROM User t1
INNER JOIN Ownership t2
ON t1.UserID = t2.UserID
INNER JOIN Container t3
t2.ContainerID = t3.ContainerID
INNER JOIN Inventory t4
ON t3.ContainerID = t4.ContainerID
INNER JOIN Item t5
ON t4.ItemID = t5.ItemID
INNER JOIN Property t6
ON t5.PropertyID = t6.PropertyID
INNER JOIN Modifier t7
ON t5.ModifierID = t7.ModifierID
WHERE t1.Name = '" + _user + "' AND
t3.ContainerName = '" + _container + "'"
I've never worked with SQLite in .NET, but that doesn't matter because your syntax doesn't follow anything I know. By the way, your immediate error was probably caused by this:
SELECT User (Name)
SQLite thinks you are trying to call a function named User. Other major problems included putting all the ON clauses together after the joins. The ON clause needs to appear after each join.
Hi i have the following Query:
String hql = "UPDATE Raumreservierung as rr " +
"set VON = :begin " +
"where VON = :Von " +
"and Raum_ID IN (SELECT r.ID FROM Raum r " +
"inner join r.Panel as pl with pl.ID = " + clientId + "";
IQuery query = CurrentSession.CreateQuery(hql);
query.SetParameter("begin", DateTime.Now);
query.SetParameter("Von", v.Von);
int result = query.ExecuteUpdate();
The Query do an Update on "VON". That works fine, but the rest of the Query is not working. It seems that the rest of the query is not working. But did not get any Error.
With the rest of the Query i mean the following part of the query:
"and Raum_ID IN (SELECT r.ID FROM Raum r " +
"inner join r.Panel as pl with pl.ID = " + clientId + "";
Because it should happen only a Update on the column "VON" for example when "clientId" is "AT2"
But that part is not working. Because the update happens also on other clientId.
You forgot to close your parentheses.
(Also, you should use a parameter for clientId too)