Solved

SQL Server 2008

Posted on 2012-12-26
8
260 Views
Last Modified: 2012-12-30
Hi Experts,
Could you please help mw with the query,its taking long to execute.
If you could advise on where i can tune my query ?Thanks.

SELECT EFF_DT,LoadStatusId,InsertType,SURR_ID,SUM_NAVN,REGNR_TYPE,P_GRUPPE_ID,C_GRUPPE_ID,ORG_KSVAKD,HIER_CODE,TOP_F,LWS_F,ANC_LEVEL,DESC_LEVEL
FROM LLSO_cpy.cpy.vwRHRH_OrgUnitHierarchy_PROD  where LoadStatusId=76829178 and C_GRUPPE_ID <> ''
ORDER BY HIER_CODE,ANC_LEVEL,P_GRUPPE_ID,C_GRUPPE_ID

 LLSO_cpy.cpy.vwRHRH_OrgUnitHierarchy_PROD--This is view on our DB
-------------------------------------------------
Create statement is below..We are using the Recursive CTE.



CREATE VIEW [cpy].[vwRHRH_OrgUnitHierarchy_PROD]
AS
WITH HierarchyTopToBottom (EFF_DT, LoadStatusId, InsertType, SURR_ID, SUM_NAVN, REGNR_TYPE,
                                          P_GRUPPE_ID, C_GRUPPE_ID, ORG_KSVAKD, HIER_CODE, TOP_F, LWS_F, ANC_LEVEL, DESC_LEVEL)
      AS
      (
      -- Anchor member definition, find the parent nodes.
            SELECT DISTINCT ou_hier.EFF_DT,
                                    ou_hier.LoadStatusId,
                                    ou_hier.InsertType,
                                    ou_hier.SURR_ID,
                                    ou_hier.SUM_NAVN,
                                    ou_hier.REGNR_TYPE,
                                    ou_hier.P_GRUPPE_ID,
                                    ou_hier.C_GRUPPE_ID,
                                    ou_hier.ORG_KSVAKD,
                                    cv_s.CL_CODE AS HIER_CODE,
                                    '1' AS TOP_F,
                                    ---- Iterate over entire CPY hierarchy to see if current node is a leaf.
                                    LWS_F =  CASE
                                                      WHEN EXISTS(SELECT ou_hier2.P_GRUPPE_ID
                                                                        FROM cpy.RHRH_OrgUnitHierarchy_PROD ou_hier2
                                                                        WHERE ou_hier2.P_GRUPPE_ID = ou_hier.C_GRUPPE_ID) THEN '0'
                                                      ELSE '1'
                                                      END,                                                
                                    1 AS ANC_LEVEL,
                                    2 AS DESC_LEVEL
            FROM cpy.RHRH_OrgUnitHierarchy_PROD ou_hier
            INNER JOIN LLSO_SOR.sor.vwCV_PROD_S AS cv_s ON ou_hier.P_GRUPPE_ID = cv_s.CL_CODE
            WHERE cv_s.SCM_CODE='IP_NVG_GFS'
            UNION ALL
      -- Recursive member definition, find the child nodes for each parent nodes
            SELECT      ou_hier.EFF_DT,
                        ou_hier.LoadStatusId,
                        ou_hier.InsertType,
                        ou_hier.SURR_ID,
                        ou_hier.SUM_NAVN,
                        ou_hier.REGNR_TYPE,
                        ou_hier.P_GRUPPE_ID,
                        ou_hier.C_GRUPPE_ID,
                        ou_hier.ORG_KSVAKD,
                        hier.HIER_CODE AS HIER_CODE,
                        '0' AS TOP_F,
                        -- Iterate over entire CPY hierarchy to see if current node is a leaf.
                        LWS_F =  CASE
                                          WHEN EXISTS(SELECT ou_hier2.P_GRUPPE_ID
                                                            FROM cpy.RHRH_OrgUnitHierarchy_PROD ou_hier2
                                                            WHERE ou_hier2.P_GRUPPE_ID = ou_hier.C_GRUPPE_ID) THEN '0'
                                          ELSE '1'
                                          END,
                        ANC_LEVEL + 1,
                        DESC_LEVEL + 1
            FROM cpy.RHRH_OrgUnitHierarchy_PROD ou_hier
            INNER JOIN HierarchyTopToBottom AS hier on ou_hier.P_GRUPPE_ID = hier.C_GRUPPE_ID
      )

      -- Get result set by invoking the recursive CTE.
      SELECT      EFF_DT,
                  LoadStatusId,
                  InsertType,
                  SURR_ID,
                  SUM_NAVN,
                  REGNR_TYPE,
                  P_GRUPPE_ID,
                  C_GRUPPE_ID,
                  ORG_KSVAKD,
                  CAST(HIER_CODE AS NVARCHAR(10)) AS HIER_CODE,
                  CAST(TOP_F AS NCHAR(1)) AS TOP_F,
                  CAST(LWS_F AS NCHAR(1)) AS LWS_F,
                  CAST(ANC_LEVEL AS SMALLINT) AS ANC_LEVEL,
                  CAST(DESC_LEVEL AS SMALLINT) AS DESC_LEVEL
      FROM HierarchyTopToBottom
0
Comment
Question by:Sandeepiii
  • 4
  • 3
8 Comments
 
LVL 18

Assisted Solution

by:x-men
x-men earned 300 total points
Comment Utility
have you runned the workload against DTA to check for index and stats suggestions ?
0
 

Author Comment

by:Sandeepiii
Comment Utility
Thanks,i can see that there are no indexes in the views and SURR_ID looks to be unique and rest of the columns have lots of duplicate records.
Iam running DTA but its taking lots of time,to finish.could you help me more please.
0
 
LVL 18

Expert Comment

by:x-men
Comment Utility
you can limit the time DTA runs.
0
 
LVL 18

Assisted Solution

by:x-men
x-men earned 300 total points
Comment Utility
another quick n' easy way, is to show the execution plan on SSMS. It will give you the "missing indexes" that would help the query.
0
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 

Author Comment

by:Sandeepiii
Comment Utility
Thanks i ran estimated query execution plan and it has given few missing indiex that can improve around 12% , but how reliable would be estimated query execution plan,could you please tell me about extimated query execution plan .
0
 
LVL 18

Assisted Solution

by:x-men
x-men earned 300 total points
Comment Utility
0
 
LVL 75

Accepted Solution

by:
Anthony Perkins earned 200 total points
Comment Utility
You need the following indexes:
cpy.RHRH_OrgUnitHierarchy:
                  P_GRUPPE_ID

LLSO_SOR.sor.vwCV_PROD_S:
                  CL_CODE
                  SCM_CODE
0
 

Author Closing Comment

by:Sandeepiii
Comment Utility
Precise and to the point answer.
0

Featured Post

Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

Join & Write a Comment

International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
The Delta outage: 650 cancelled flights, more than 1200 delayed flights, thousands of frustrated customers, tens of millions of dollars in damages – plus untold reputational damage to one of the world’s most trusted airlines. All due to a catastroph…
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now