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join problem

Hi guys

i have to read 5 views from sql in qlikview, i joined them like bellow, it has no error when i write top 1000, but when i run in sql the records got to millions and took sooooo long.

are my joins have problem? if yes i would appreciate if you give me the correct join in my case.

OLEDB CONNECT32 TO [Provider=SQLOLEDB.1;Persist Security Info=True;User ID=IT;Initial Catalog=MMTDB;Data Source=192.168.20.22;Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=SEPASGOL;Use Encryption for Data=False;Tag with column collation when possible=False] (XPassword is AAfMXREJUKTaEKNEDG);

Combined:

//-------- Start Multiple Select Statements ------

SQL SELECT  top 1000

    VUnit.Active U_Active,

    VUnit.CityName as U_CityName,

    VUnit.CreateUnitName as U_CreateUnitName,

    VUnit.DeliveryDate as U_DeliveryDate,

    VUnit.HixCode as U_HixCode,

    VUnit.MobileAdmin as U_MobileAdmin,

    VUnit.OwnershipType as U_OwnershipType,

    VUnit.PhoneNumber  as U_PhoneNumber,

    VUnit.State as U_State,

    VUnit.UnitCode,

    VUnit.UnitType,

  

    VUser.father as User_father,

    VUser.FName as User_FName ,

    VUser.Id as User_ID,

    VUser.IsActive as ,

    VUser.LName as UserLastName,

    VUser.RegisterDateTime,

    VUser.RoleName,

    VUser.UnitName,

    VUser.UserName,

 

    VSick.Address,

    VSick.Age,

    VSick.BirthDate,

    VSick.CityId,

    VSick.CityName,

    VSick.Diploma,

    VSick.DiseaseList,

    VSick.DrugId as SickDrugID,

    VSick.DrugName as SickDrugName,

    VSick.EndDateCourse,

    VSick.father,

    VSick.FileNumber,

    VSick.FirstDateUse,

    VSick.FName as SickFName,

    VSick.Id ,

    VSick.IDNumber,

    VSick.LastStateComment,

    VSick.LastStateDate,

    VSick.LName  as SickLName,

    VSick.Marital,

    VSick.Mobile,

    VSick.NarcoticList,

    VSick.NationalCardNumber,

    VSick.NationalityCaption,

    VSick.NationalityID,

    VSick.PhoneNumber,

    VSick.RangeAgeCaption,

    VSick.RangeAgeId,

    VSick.Sexual,

    VSick.SickStateId,

    VSick.SickStateLatinName,

    VSick.SickStateName,

    VSick.SickTypeId,

    VSick.SickTypeLatinName,

    VSick.SickTypeName,

    VSick.Skill,

    VSick.StartDateCourse,

    VSick.Tribe,

    VSick.UnitCityId,

  

    VRequest.Activity,

    VRequest.Comment,

    VRequest.FactorNumber,

    VRequest.IsMultiCartable,

    VRequest.MasoolFaniId,

    VRequest.NumberInPeriod,

    VRequest.RealDeliveryDate,

    VRequest.RecommendedDeliveryDate,

    VRequest.RequestId,

    VRequest.RequestStatusCaption,

    VRequest.RequestStatusId,

    VRequest.RequestStatusValue,

    VRequest.RoleId,

    VRequest.StartRequestDate,

    VRequest.StatusOfRequestDate,

    VRequest.StatusOfRequestId,

    VRequest.TotalCash,

    VRequest.WarehouseNumber,  

  

    VRequestDrug.CountSick,

    VRequestDrug.DrugId,

    VRequestDrug.DrugName,

    VRequestDrug.DrugPrice,

    VRequestDrug.TotalCurrent,

    VRequestDrug.TotalTakeMedication,

    VRequestDrug.ValuePezeshk,

    VRequestDrug.ValueRequest

FROM

    MMTDB.dbo.QVUnit                     as VUnit,

    MMTDB.dbo.QVUser                   as VUser,

    MMTDB.dbo.QVSick                    as VSick,

    MMTDB.dbo.QVRequest             as VRequest,

    MMTDB.dbo.QVRequestDrug     as VRequestDrug

where 

  VUnit.UnitCode                    = VUser.UnitCode 

and        VUnit.UnitCode                    = VSick.UnitCode

and        VUnit.UnitCode                    = VRequest.UnitCode

and        VRequestDrug.RequestId   = VRequest.RequestId ;

STORE Combined into QVD\MMT.qvd(QVD);

2 Replies
ziadm
Specialist
Specialist

Hi

in the debug mode load only limited records and check your final data model if you have synthetic keys or circular loop.  If you have that then you data load will never execute and may run out of memory. 

maxgro
MVP
MVP

It depends on your SQL database, i.e. data model, tables relations, performance

and on your network for record transfer

Qlik will only get the result of the query and load the in memory db; the only problem could be you have a record with many fields

Try the query with a sql tool (it seems you're on Sql Server, so sql server management studio)

I think you'll get the same problem (million of rows, it takes too long)