Slow query execution on web

Hello,
When executing a query on the web and monitoring this in SM66 I notice that it takes a long time after all processes has finished until the result of the query actually gets displayed in the web browser. Internet explorer "hangs" for several minutes before displaying the data. This issue seems to be Microsoft related, since the SAP-processes work fine in SM66..
Any ideas of the reason for this slow behaviour in IE?
Regards,
F C

Hello,
The vast quantity of data is sometimes heavy and this prolongs the display time, but there is no graphs in the report and the processes in BW are ended (Data base time).
My question is how does this work? What can be done in orde to decrease this "display" time, e.g. the time for presenting the data after all data base related processes have ended..?
Some process starts after the completion of reading the data base. How do I monitor this process?
Regards,
F C
Message was edited by:
F C

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Hi Neetika,
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I have a query which fetches around 100 records from a table which has approximately 30 million records. Unfortunately, I have to use the same table and can't go ahead with a new table.
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I have a feeling this will lead us nowhere, but let me try for the last time.
Tuning a query is not about trying out all available index hints, because there must be one that makes the query fly. It is about diagnosing the query. See what it does and see where time is being spent. Only after you know where time is being spent, then you can effectively do something about it (if it is not tuned already).
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SharePoint and SQL Server installed on same server or how is the setup?
i would start to enable the developer dashboard, analyze the report of the developer dashboard...
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http://www.sharepoint-journey.com/developer-dashboard-in-sharepoint-2013.html
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Query execution time

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click report error:
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---> Microsoft.AnalysisServices.AdomdClient.AdomdErrorResponseException: Query (26, 25) The ALLMEMBERS function expects a hierarchy expression for the argument. A member expression was used.
   at Microsoft.AnalysisServices.AdomdClient.AdomdDataReader..ctor(XmlReader xmlReader, CommandBehavior commandBehavior, AdomdConnection connection)
   at Microsoft.AnalysisServices.AdomdClient.AdomdCommand.ExecuteReader(CommandBehavior behavior)
   at Microsoft.AnalysisServices.AdomdClient.AdomdCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
   at Microsoft.ReportingServices.DataExtensions.AdoMdCommand.ExecuteReader(CommandBehavior behavior)
   at Microsoft.ReportingServices.OnDemandProcessing.RuntimeDataSet.RunDataSetQuery()
   --- End of inner exception stack trace ---
   at Microsoft.ReportingServices.OnDemandProcessing.RuntimeDataSet.RunDataSetQuery()
   at Microsoft.ReportingServices.OnDemandProcessing.RuntimeDataSet.Process()
   at Microsoft.ReportingServices.OnDemandProcessing.RuntimeParameterDataSet.Process()
   at Microsoft.ReportingServices.OnDemandProcessing.RuntimeDataSet.ProcessConcurrent(Object threadSet)
   --- End of inner exception stack trace ---
open http://localhost:8080/tfs/TeamFoundation/Administration/v3.0/WarehouseControlService.asmx?op=ProcessWarehouse click Invoke:
System.Web.Services.Protocols.SoapException: TF221029: Reporting for Team Foundation Server does not have any warehouse jobs defined. Use the Team Foundation Administration Console to rebuild the reporting. : 2015-04-27T19:30:29:782 ---> System.InvalidOperationException:
TF221029: Reporting for Team Foundation Server does not have any warehouse jobs defined. Use the Team Foundation Administration Console to rebuild the reporting. at Microsoft.TeamFoundation.Warehouse.WarehouseAdmin.QueueJobs(String collectionName, String jobName)
at Microsoft.TeamFoundation.Warehouse.WarehouseControlWebService.ProcessWarehouse(String collectionName, String jobName) --- End of inner exception stack trace --- at Microsoft.TeamFoundation.Warehouse.WarehouseControlWebService.ProcessWarehouse(String collectionName,
String jobName)

Hi shelman,
I'd like to know whether you configured TFS reporting service properly, and if you can get the report normally before. From the error message, you might has wrong data source or the parameters of the dataset 'dsPriority'. You can check whether the data source
for your report is available, try to use windows authentication. Or check the parameters of dataset 'dsPriority' make sure the query works when you execute it manually.
To process the TFS data warehouse and analysis services cube, I'd like to know which operation you selected before clicking Invoke button. Please follow the instructions on this
page to process TFS data warehouse and analysis service cube manually. You can also refer the James's last reply in this
thread or this
blog to check if the solutions work for you.
Another option is run TFS best practice analyzer to check if there any configure issues on your TFS server machine. And check event logs to see if there any useful information, elaborate more details about your scenario including reproduce steps if the problem
persists.
Best regards,

Very Slow Query with CTE inner join

I have 2 tables (heavily simplified here to show relevant columns):
CREATE TABLE tblCharge
(ChargeID int NOT NULL,
ParentChargeID int NULL,
ChargeName varchar(200) NULL)
CREATE TABLE tblChargeShare
(ChargeShareID int NOT NULL,
ChargeID int NOT NULL,
TotalAmount money NOT NULL,
TaxAmount money NULL,
DiscountAmount money NULL,
CustomerID int NOT NULL,
ChargeShareStatusID int NOT NULL)
I have a very basic View to Join them:
CREATE VIEW vwBASEChargeShareRelation as
Select c.ChargeID, ParentChargeID, s.CustomerID, s.TotalAmount, isnull(s.TaxAmount, 0) as TaxAmount, isnull(s.DiscountAmount, 0) as DiscountAmount
from tblCharge c inner join tblChargeShare s
on c.ChargeID = s.ChargeID Where s.ChargeShareStatusID < 3
GO
I then have a view containing a CTE to get the children of the Parent Charge:
ALTER VIEW [vwChargeShareSubCharges] AS
WITH RCTE AS
SELECT ParentChargeId, ChargeID, 1 AS Lvl, ISNULL(TotalAmount, 0) as TotalAmount, ISNULL(TaxAmount, 0) as TaxAmount,
ISNULL(DiscountAmount, 0) as DiscountAmount, CustomerID, ChargeID as MasterChargeID
FROM vwBASEChargeShareRelation Where ParentChargeID is NULL
UNION ALL
SELECT rh.ParentChargeID, rh.ChargeID, Lvl+1 AS Lvl, ISNULL(rh.TotalAmount, 0), ISNULL(rh.TaxAmount, 0), ISNULL(rh.DiscountAmount, 0) , rh.CustomerID
, rc.MasterChargeID
FROM vwBASEChargeShareRelation rh
INNER JOIN RCTE rc ON rh.PArentChargeID = rc.ChargeID and rh.CustomerID = rc.CustomerID
Select MasterChargeID as ChargeID, CustomerID, Sum(TotalAmount) as TotalCharged, Sum(TaxAmount) as TotalTax, Sum(DiscountAmount) as TotalDiscount
from RCTE
Group by MasterChargeID, CustomerID
GO
So far so good, I can query this view and get the total cost for a line item including all children.
The problem occurs when I join this table. The query:
Select t.* from vwChargeShareSubCharges t
inner join
tblChargeShare s
on t.CustomerID = s.CustomerID
and t.MasterChargeID = s.ChargeID
Where s.ChargeID = 1291094
Takes around 30 ms to return a result (tblCharge and Charge Share have around 3.5 million records).
But the query:
Select t.* from vwChargeShareSubCharges t
inner join
tblChargeShare s
on t.CustomerID = s.CustomerID
and t.MasterChargeID = s.ChargeID
Where InvoiceID = 1045854
Takes around 2 minutes to return a result - even though the only charge with that InvoiceID is the same charge as the one used in the previous query.
The same thing occurs if I do the join in the same query that the CTE is defined in.
I ran the execution plan for each query. The first (fast) query looks like this:
The second(slow) query looks like this:
I am at a loss, and my skills at decoding execution plans to resolve this are lacking.
I have separate indexes on tblCharge.ChargeID, tblCharge.ParentChargeID, tblChargeShare.ChargeID, tblChargeShare.InvoiceID, tblChargeShare.ChargeShareStatusID
Any ideas? Tested on SQL 2008R2 and SQL 2012

>> The database is linked [sic] to an established app and the column and table names can't be changed. <<
Link? That is a term from pointer chains and network databases, not SQL. I will guess that means the app came back in the old pre-RDBMS days and you are screwed.
>> I am not too worried about the money field [sic], this is used for money and money based calculations so the precision and rounding are acceptable at this level. <<
Field is a COBOL concept; columns are totally different. MONEY is how Sybase mimics the PICTURE clause that puts currency signs, commas, period, etc in a COBOL money field.
Using more than one operation (multiplication or division) on money columns will produce severe rounding errors. A simple way to visualize money arithmetic is to place a ROUND() function calls after
every operation. For example,
Amount = (Portion / total_amt) * gross_amt
can be rewritten using money arithmetic as:
Amount = ROUND(ROUND(Portion/total_amt, 4) *
gross_amt, 4)
Rounding to four decimal places might not seem an
issue, until the numbers you are using are greater
than 10,000.
BEGIN
DECLARE @gross_amt MONEY,
@total_amt MONEY,
@my_part MONEY,
@money_result MONEY,
@float_result FLOAT,
@all_floats FLOAT;
SET @gross_amt = 55294.72;
SET @total_amt = 7328.75;
SET @my_part = 1793.33;
SET @money_result = (@my_part / @total_amt) *
@gross_amt;
SET @float_result = (@my_part / @total_amt) *
@gross_amt;
SET @Retult3 = (CAST(@my_part AS FLOAT)
/ CAST( @total_amt AS FLOAT))
* CAST(FLOAT, @gross_amt AS FLOAT);
SELECT @money_result, @float_result, @all_floats;
END;
@money_result = 13525.09 -- incorrect
@float_result = 13525.0885 -- incorrect
@all_floats = 13530.5038673171 -- correct, with a -
5.42 error
>> The keys are ChargeID(int, identity) and ChargeShareID(int, identity). <<
Sorry, but IDENTITY is not relational and cannot be a key by definition. But it sure works just like a record number in your old COBOL file system.
>> .. these need to be int so that they are assigned by the database and unique. <<
No, the data type of a key is not determined by physical storage, but by logical design. IDENTITY is the number of a parking space in a garage; a VIN is how you identify the automobile.
>> What would you recommend I use as keys? <<
I do not know. I have no specs and without that, I cannot pull a Kabbalah number from the hardware. Your magic numbers can identify Squids, Automobile or Lady Gaga! I would ask the accounting department how they identify a charge.
>> Charge_Share_Status_ID links [sic] to another table which contains the name, formatting [sic] and other information [sic] or a charge share's status, so it is both an Id and a status. <<
More pointer chains! Formatting? Unh? In RDBMS, we use a tiered architecture. That means display formatting is in a presentation layer. A properly created table has cohesion – it does one and only one data element. A status is a state of being that applies
to an entity over a period time (think employment, marriage, etc. status if that is too abstract).
An identifier is based on the Law of Identity from formal logic “To be is to be something in particular” or “A is A” informally. There is no entity here! The Charge_Share_Status table should have the encoded values for a status and perhaps a description if
they are unclear. If the list of values is clear, short and static, then use a CHECK() constraint.
On a scale from 1 to 10, what color is your favorite letter of the alphabet? Yes, this is literally that silly and wrong.
>> I understand what a CTE is; is there a better way to sum all children for a parent hierarchy? <<
There are many ways to represent a tree or hierarchy in SQL. This is called an adjacency list model and it looks like this:
CREATE TABLE OrgChart
(emp_name CHAR(10) NOT NULL PRIMARY KEY,
boss_emp_name CHAR(10) REFERENCES OrgChart(emp_name),
salary_amt DECIMAL(6,2) DEFAULT 100.00 NOT NULL,
<< horrible cycle constraints >>);
OrgChart
emp_name boss_emp_name salary_amt
==============================
'Albert' NULL 1000.00
'Bert' 'Albert' 900.00
'Chuck' 'Albert' 900.00
'Donna' 'Chuck' 800.00
'Eddie' 'Chuck' 700.00
'Fred' 'Chuck' 600.00
This approach will wind up with really ugly code -- CTEs hiding recursive procedures, horrible cycle prevention code, etc. The root of your problem is not knowing that rows are not records, that SQL uses sets and trying to fake pointer chains with some
vague, magical non-relational "id".
This matches the way we did it in old file systems with pointer chains. Non-RDBMS programmers are comfortable with it because it looks familiar -- it looks like records and not rows.
Another way of representing trees is to show them as nested sets.
Since SQL is a set oriented language, this is a better model than the usual adjacency list approach you see in most text books. Let us define a simple OrgChart table like this.
CREATE TABLE OrgChart
(emp_name CHAR(10) NOT NULL PRIMARY KEY,
lft INTEGER NOT NULL UNIQUE CHECK (lft > 0),
rgt INTEGER NOT NULL UNIQUE CHECK (rgt > 1),
CONSTRAINT order_okay CHECK (lft < rgt));
OrgChart
emp_name lft rgt
======================
'Albert' 1 12
'Bert' 2 3
'Chuck' 4 11
'Donna' 5 6
'Eddie' 7 8
'Fred' 9 10
The (lft, rgt) pairs are like tags in a mark-up language, or parens in algebra, BEGIN-END blocks in Algol-family programming languages, etc. -- they bracket a sub-set. This is a set-oriented approach to trees in a set-oriented language.
The organizational chart would look like this as a directed graph:
Albert (1, 12)
Bert (2, 3) Chuck (4, 11)
/ | \
/ | \
/ | \
/ | \
Donna (5, 6) Eddie (7, 8) Fred (9, 10)
The adjacency list table is denormalized in several ways. We are modeling both the Personnel and the Organizational chart in one table. But for the sake of saving space, pretend that the names are job titles and that we have another table which describes the
Personnel that hold those positions.
Another problem with the adjacency list model is that the boss_emp_name and employee columns are the same kind of thing (i.e. identifiers of personnel), and therefore should be shown in only one column in a normalized table. To prove that this is not
normalized, assume that "Chuck" changes his name to "Charles"; you have to change his name in both columns and several places. The defining characteristic of a normalized table is that you have one fact, one place, one time.
The final problem is that the adjacency list model does not model subordination. Authority flows downhill in a hierarchy, but If I fire Chuck, I disconnect all of his subordinates from Albert. There are situations (i.e. water pipes) where this is true, but
that is not the expected situation in this case.
To show a tree as nested sets, replace the nodes with ovals, and then nest subordinate ovals inside each other. The root will be the largest oval and will contain every other node. The leaf nodes will be the innermost ovals with nothing else inside them
and the nesting will show the hierarchical relationship. The (lft, rgt) columns (I cannot use the reserved words LEFT and RIGHT in SQL) are what show the nesting. This is like XML, HTML or parentheses.
At this point, the boss_emp_name column is both redundant and denormalized, so it can be dropped. Also, note that the tree structure can be kept in one table and all the information about a node can be put in a second table and they can be joined on employee
number for queries.
To convert the graph into a nested sets model think of a little worm crawling along the tree. The worm starts at the top, the root, makes a complete trip around the tree. When he comes to a node, he puts a number in the cell on the side that he is visiting
and increments his counter. Each node will get two numbers, one of the right side and one for the left. Computer Science majors will recognize this as a modified preorder tree traversal algorithm. Finally, drop the unneeded OrgChart.boss_emp_name column
which used to represent the edges of a graph.
This has some predictable results that we can use for building queries. The root is always (left = 1, right = 2 * (SELECT COUNT(*) FROM TreeTable)); leaf nodes always have (left + 1 = right); subtrees are defined by the BETWEEN predicate; etc. Here are
two common queries which can be used to build others:
1. An employee and all their Supervisors, no matter how deep the tree.
SELECT O2.*
FROM OrgChart AS O1, OrgChart AS O2
WHERE O1.lft BETWEEN O2.lft AND O2.rgt
AND O1.emp_name = :in_emp_name;
2. The employee and all their subordinates. There is a nice symmetry here.
SELECT O1.*
FROM OrgChart AS O1, OrgChart AS O2
WHERE O1.lft BETWEEN O2.lft AND O2.rgt
AND O2.emp_name = :in_emp_name;
3. Add a GROUP BY and aggregate functions to these basic queries and you have hierarchical reports. For example, the total salaries which each employee controls:
SELECT O2.emp_name, SUM(S1.salary_amt)
FROM OrgChart AS O1, OrgChart AS O2,
Salaries AS S1
WHERE O1.lft BETWEEN O2.lft AND O2.rgt
AND S1.emp_name = O2.emp_name
GROUP BY O2.emp_name;
4. To find the level and the size of the subtree rooted at each emp_name, so you can print the tree as an indented listing.
SELECT O1.emp_name,
SUM(CASE WHEN O2.lft BETWEEN O1.lft AND O1.rgt
THEN O2.sale_amt ELSE 0.00 END) AS sale_amt_tot,
SUM(CASE WHEN O2.lft BETWEEN O1.lft AND O1.rgt
THEN 1 ELSE 0 END) AS subtree_size,
SUM(CASE WHEN O1.lft BETWEEN O2.lft AND O2.rgt
THEN 1 ELSE 0 END) AS lvl
FROM OrgChart AS O1, OrgChart AS O2
GROUP BY O1.emp_name;
5. The nested set model has an implied ordering of siblings which the adjacency list model does not. To insert a new node, G1, under part G. We can insert one node at a time like this:
BEGIN ATOMIC
DECLARE rightmost_spread INTEGER;
SET rightmost_spread
= (SELECT rgt
FROM Frammis
WHERE part = 'G');
UPDATE Frammis
SET lft = CASE WHEN lft > rightmost_spread
THEN lft + 2
ELSE lft END,
rgt = CASE WHEN rgt >= rightmost_spread
THEN rgt + 2
ELSE rgt END
WHERE rgt >= rightmost_spread;
INSERT INTO Frammis (part, lft, rgt)
VALUES ('G1', rightmost_spread, (rightmost_spread + 1));
COMMIT WORK;
END;
The idea is to spread the (lft, rgt) numbers after the youngest child of the parent, G in this case, over by two to make room for the new addition, G1. This procedure will add the new node to the rightmost child position, which helps to preserve the idea
of an age order among the siblings.
6. To convert a nested sets model into an adjacency list model:
SELECT B.emp_name AS boss_emp_name, E.emp_name
FROM OrgChart AS E
LEFT OUTER JOIN
OrgChart AS B
ON B.lft
= (SELECT MAX(lft)
FROM OrgChart AS S
WHERE E.lft > S.lft
AND E.lft < S.rgt);
7. To find the immediate parent of a node:
SELECT MAX(P2.lft), MIN(P2.rgt)
FROM Personnel AS P1, Personnel AS P2
WHERE P1.lft BETWEEN P2.lft AND P2.rgt
AND P1.emp_name = @my_emp_name;
I have a book on TREES & HIERARCHIES IN SQL which you can get at Amazon.com right now. It has a lot of other programming idioms for nested sets, like levels, structural comparisons, re-arrangement procedures, etc.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

Query execution process in OBIEE 11g

Hi all,
I am confused with Web logic server, enterprise manager server and other components of
Obiee 11g architecture with respect to query execution in Answers of Presentation services.
Please explain me in detail...from the login page i.e when a user logins
into the presentation services for query request. Explain how exactly the various
servers communicates starting from logging into presentation services (how exactly user authenticates),
then query execution (which servers communicates). I am confused with the flow of query process.
Regards
Chandra kanth.

Gurus and Experts,
Please take your valuable time to answer my question.
regards
chandra kanth.

30EA4 Problem using MySql: "Query execution was interrupted"

Any query executes the first time but a second execution always causes the error "Query execution was interrupted"
(Update: I just installed the prodcution release of sql delveloper 2.1.1.64.45 and have the same issue)
I am using MySql driver 5.1.15
Others seem to have a similar issue and I tries the older JDBC drivers but the 5.0.4 cause the connection to hang and the 5.0.8 caused the same problem "Query execution was interrupted"
Vendor Code 1317 Query execution was interrupted MySQL
I am using Windows7 64 bit (sql developer and jdk are 32 bit), see below
MySql version
-------------------------------------------------------+
| Variable_name | Value |
-------------------------------------------------------+
| innodb_version | 1.1.4 |
| protocol_version | 10 |
| slave_type_conversions | |
| version | 5.5.8 |
| version_comment | MySQL Community Server (GPL) |
| version_compile_machine | x86 |
| version_compile_os | Win64 |
-------------------------------------------------------+
SQL Develper Info:
About
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Version 3.0.03
Build MAIN-03.97
Copyright © 2005, 2011 Oracle. All Rights Reserved.
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Edited by: user501466 on 19-Mar-2011 03:21

Hi Dermot,
Some clarification.
I have tried these 3 drivers below with the following results:
5.0.4 First Query succeeds, Second gives error "Unknown prepared statement handler (131072) given to mysqld_stmt_execute". At this point I can exit SQL Developer. If I run it a third time then the query does not complete and any attempt to exit SQL Developer results in "Connection is currently busy, try again?" and ultimately I have to kill it.
5.0.8 First Query succeeds, Second Query fails with Query execution was interrupted. Subsequent queries give the same result.
5.1.15 Same as 5.0.8
I tried your suggestion, removed the driver, restarted, installed the 5.0.4 driver and restated and ran the test,
(I added a drop table so I could run it repeatedly) and it works repeatedly if I choose "Run as script F5".
DROP TABLE table1;
CREATE TABLE table1(col1 int);
INSERT INTO Table1 values(1);
SELECT * FROM table1;
SELECT * FROM table1;
But If I execute the query "select * from table1" using "Run Statement Ctrl-Enter" twice then I get problem behaviour as described above.
I looked in the logfile for SQLDeveloper but it was empty.
I also tried creating a new database as root and connecting as root (same result)
I also tried the NightlyBuild of 5.1 and 6.0 but gave the same result as 5.1.5.
I have two other tools for accessing MySql: Toad and MySql workbench, both of which work but I've used SQL Developer with Oracle for some years and would like to keep using it.
I just tried connecting to a remote MySQL database and that seems to work without problems.
I'm thinking it may be related to some incompatibility between SQLDeveloper and the MySQL installed locally.
I'll try another version....
Ok I installed a 32 bit version of MySql 5.5.10. I thought things were working but now I still get the problem but it is much more intermittent.
Now I can get it by modifying the query ie.
select * from table1; (works repeatedly untill followed by a change to the query)
select * from table1 order by col1; (fails)
Another case
select * from table1 order by col1; (works repeatedly)
select * from table1 order by col1 asc; (fails first time)
very weird...
Edited by: user501466 on 26-Mar-2011 06:19

F4 Help in Variable Screen during Query Execution

Hi All,
We are executing queries through WAD. The F4 help in the variable screen during query execution is taking a lot of time.
SAP note 661251 suggests changing the F4 mode to M. We need to change the booked value parameter.
I looked into the standard WAD web template but i'm not seeing any options/ooked value parameter.
Please suggest where I need to go to change the parameter. Thanks.
Regards,
Vivek

Not much experience in WAD but I think there should be a query in BEx Query Designer.
There you can choose that characteristics which takes time. Select "Advanced" tab from right hand side.
Under "Filter Value Selection During Query Execution" you will get 4 options.
BTW if you have a query on DSO then creating index ( secondary) on the affected characteristics would also resolve your problem
Regards
Anindya

BW statistics: Query Execution Time per User

I am struggling to get something meaningful out of the BW statistics. The only information I really need is:
The time from the first call of a query until the first selection screen and
The time from the execution request until the data is displayed (i.e. after filling selection screen)
With the possibility to see this information by user.
So with other words: KF Duration of query call + KF Duration of query execution, with Characteristics: user, period, query
This could sound like a very simple universal query, but indeed absolutely not straightforward when looking at statistics contents. Any hints on the KF calculations are most welcome.
The BW version in 7.0, with Bex as well as WAD reporting.

I was looking for the same KFs, but did not find anything meaningful in ST03N as well.
But I would recommend to execute the Web Report (from WAD or from Portal, if you are using Enterprise Portal) and then look at table view RSDDSTAT_OLAP. In this table view, BW Statistic data for each step is saved on event level. So if you execute the Web Report, you will find entries for the step corresponding to displaying the selection screen and for the step of generating the Web Report after the selection screen. The column RUNTIME displays the runtime of each step, which is a good indicator for the average runtime KFs you want to have.
Maybe there are more meaningful KFs in technical BI Content, but I did not find them yet.

Slow query execution on web

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