MS SQL Server :: Optimizing A Query

Optimizing A Query

Jun 3, 2004

Hello,
I am hoping someone here can help me optimize the following query:
SELECT
INCOMING.DATE_TIME, INCOMING.URL, INCOMING.HITS,
USER_NAMES.USER_LOGIN_NAME,
CATEGORY.NAME
FROM
(wsHQMay2004.dbo.INCOMING INCOMING INNER JOIN wsHQMay2004.dbo.CATEGORY CATEGORY ON INCOMING.CATEGORY = CATEGORY.CATEGORY)
INNER JOIN wsHQMay2004.dbo.USER_NAMES USER_NAMES ON INCOMING.USER_ID = USER_NAMES.USER_ID
WHERE
INCOMING.DATE_TIME >= '2004-05-01 00:00:00.00' AND
INCOMING.DATE_TIME < '2004-06-01 00:00:00.00'
ORDER BY
INCOMING.URL ASC

I am just hoping to get some tips on perhaps a better way to write this query as right now, due to the size of the incoming table, this query just takes forever.

Any advise will be apreciated.

Thanks.

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Need Help Optimizing A Sql Query...

May 28, 2004

we have an insurance program up and running in our regions and we get random reports of slowness. in an effort to track down all facets of slowness i am looking at all my sql code to make sure it is as efficient as possible. I know a little about SQL and writing SQL statements, enough to help me do my job well. but i do not write optimized code.

if request.form("selPolicyNum") <> "" then
sqlPolicyInfo = "SELECT PIEffectiveDate, PIExpirationdate from PIMaster where PIPolicyNum='" & request.form("selPolicyNum") & "'"
Set rsPolicyInfo = Server.CreateObject("ADODB.Recordset")
Set rsPolicyInfo.ActiveConnection = webLookupConn
'rsPolicyInfo.CursorType = adOpenDynamic
'rsPolicyInfo.LockType = adLockOptimistic
rsPolicyInfo.Source = sqlPolicyInfo
'rsPolicyInfo.CursorLocation = adUseClient
rsPolicyInfo.Open
'response.write sqlPolicyInfo
end if

if request.form("selPolicyNum") <> "" then
sqlRemarkInsert="INSERT INTO clRemarks (PolicyNum, AccountNum, UserID, RemarkBody, CreationDate, PolEffectiveDate, PolExpDate, RemarkCategory1, RemarkCategory2, RemarkCategory3, RemarkCategory4, RemarkCategory5, RemarkCategory6, RemarkCategory7, RemarkCategory8, RemarkCategory9, RemarkCategory10, RemarkCategory11, RemarkCategory12, RemarkCategory13) VALUES ('"
sqlRemarkInsert=sqlRemarkInsert & request.form("selPolicyNum") & "', '" & request.form("txtAcctNum") & "', '" & request("aysmenu")("userid") & "', '" & Replace(request.form("RemarkBody"),"'","''") & "', '" & CurrDate & "', '" & rsPolicyInfo("PIEffectiveDate") & "', '" & rsPolicyInfo("PIExpirationDate") & "', '" & request.form("chkIssuingInstructions") & "', '" & request.form("chkLossControl") & "', '" & request.form("chkLossHistoryClaims") & "', '" & request.form("chkReinsurance") & "', '" & request.form("chkMVRDriverIssues") & "', '" & request.form("chkBilling") & "', '" & request.form("chkGeneral") & "', '" & request.form("chkCancellationDNR") & "', '" & request.form("chkPolicyAmendments") & "', '" & request.form("chkExperienceRatingInfo") & "', '" & request.form("chkDiscretionaryPricing") & "', '" & request.form("chkPremiumAudit") & "', '" & request.form("chkQuotingInstructions") & "')"
else
sqlRemarkInsert="INSERT INTO clRemarks (AccountNum, UserID, RemarkBody, CreationDate, RemarkCategory1, RemarkCategory2, RemarkCategory3, RemarkCategory4, RemarkCategory5, RemarkCategory6, RemarkCategory7, RemarkCategory8, RemarkCategory9, RemarkCategory10, RemarkCategory11, RemarkCategory12, RemarkCategory13) VALUES ('"
sqlRemarkInsert=sqlRemarkInsert & request.form("txtAcctNum") & "', '" & request("aysmenu")("userid") & "', '" & Replace(request.form("RemarkBody"),"'","''") & "', '" & CurrDate & "', '" & request.form("chkIssuingInstructions") & "', '" & request.form("chkLossControl") & "', '" & request.form("chkLossHistoryClaims") & "', '" & request.form("chkReinsurance") & "', '" & request.form("chkMVRDriverIssues") & "', '" & request.form("chkBilling") & "', '" & request.form("chkGeneral") & "', '" & request.form("chkCancellationDNR") & "', '" & request.form("chkPolicyAmendments") & "', '" & request.form("chkExperienceRatingInfo") & "', '" & request.form("chkDiscretionaryPricing") & "', '" & request.form("chkPremiumAudit") & "', '" & request.form("chkQuotingInstructions") & "')"
end if
rsRemarkInsert=ComProConn.Execute (sqlRemarkInsert)

rsPolicyInfo.close
Set rsPolicyInfo=nothing

that is the code used to store a remark into the system. is this code optimized already or should some of the db parameters be changed to make things faster? this is just an example of many of the SQL statements that i may or may not have to fix. thank you for any and all help.

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Help Optimizing Query

Jun 23, 2008

I have the following query that works fine but i'm wondering if there is a way to optimize it better as when I analyze through sql profiler it is at the top of the list of using the cpu

SELECT DISTINCT site, d, (SELECT COUNT(id) FROM anP aPV2 WHERE aPV2.confirmed=1 and aPV2.stage=2 and aPV2.inserted=0 and aPV2.site=aPV1.site and aPV2.d>=aPV1.d and aPV2.d<=aPV1.d) AS mycount FROM anP aPV1 WHERE confirmed=1 AND stage=2 AND inserted=0 ORDER BY site,d

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Optimizing Query

Sep 18, 2007

Hi,

I have the below query written so that i do not insert entries that is already existing in the table. I am trying to put in 70000 entries at a single shot and it breaks down. Can anybody help me optimize the below query so that it doesnt break? Is there any other way I can write this query?

Please do help me with this. Thanks in advance. The table in which i am inserting the entries has a composite key composed of ACCT_NUM_MIN and ACCT_NUM_MAX. I am getting this from a table which doesnt have a primary key(CORE)

INSERT INTO CRF (CORE_UID,ACCT_NUM_MIN, ACCT_NUM_MAX,BIN, BUS_ID,BUS_NM,ISO_CTRY_CD, REGN_CD, PROD_TYPE_CD, CARD_TYPE)
SELECT UID , LEFT(ACCT_NUM_MIN,16), LEFT(ACCT_NUM_MAX,16), BIN, BUS_ID, BUS_NM, ISO_CTRY_CD, REGN_CD, PROD_TYPE_CD, CARD_TYPE FROM CORE o
WHERE NOT EXISTS (SELECT * FROM CRF i
WHERE o.ACCT_NUM_MIN = i.ACCT_NUM_MIN
AND o.ACCT_NUM_MAX = i.ACCT_NUM_MAX)

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Optimizing A Big Query

Feb 9, 2007

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Help With Optimizing Query

Feb 2, 2007

if I have the following tables:

Table Customer_tbl

cust_id as int (PK), ...

Table Item_tbl

item_id as int (PK), ...

Table Selected_Items_tbl

selected_item_id as int (PK), cust_id as int (FK), item_id as int (FK), ...

-------

With the following query:

select cust_ID from selected_items_tbl WHERE item_id in (1, 2, n) GROUP BY cust_id, item_id HAVING cust_id in (select cust_id from selected_items_tbl where item_id = 1) AND cust_id in (select cust_id from selected_items_tbl where item_id = 2) AND cust_id in (select cust_id from selected_items_tbl where item_id = n)

-------

Each of these tables has other items included. Selected_Items_tbl holds zero to many of the items from the item_tbl for each customer. If I am searching for a customer who has item 1 AND item 2 AND item n, what would be the most efficient query for this? Currently, the above query is what I am working with. However, it seems that we should be able to do this type of search in a single query (without subqueries).

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Optimizing Query To Run

Sep 27, 2006

I'm trying to get a query to run which looks at completed orders that have not had another paid order in 180 days. The database I'm running it against is very large so I can't get it to complete. Where's what I've got:

select Date =cast(cl1.cl_rundate as datetime(102)),count(cl1.cl_recno) as 'Completed Initials', cl1.cl_status as Status from dbo.vw_Completedorders cl1 where cl1.lob_lineofbusiness = 'aaa'
and cl1.cl_rundate > '20060801' and not exists (
select cl2.cl_company from dbo.vw_Paidorders cl2 where
cl2.lob_lineofbusiness = 'aa'and cl2.cl_company = cl1.cl_order and cl2.cl_rundate > '20060101' and datediff(day,cl2.cl_rundate,cl1.cl_rundate) < 180)
group by cl1.cl_status, cl1.cl_rundate

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Optimizing SELECT Query

Nov 7, 2007

Hi
I have one table (tableDemo) with following structure:
TSID bigint (Primary Key)TskID bigint Sequence bigint Version bigint Frequency varchar(500) WOID bigint DateSchedule datetime TimeStandard real MeterEstimated real MeterLast real Description ntext CreatedBy bigint CreatedDate datetime ModifiedBy bigint ModifiedDate datetime Id uniqueidentifier
I have 8000 records in this table. When I fire simple select command (i.e. select * from tableDemo) it takes more than 120 seconds.
Is there any techniques where I can access all these records within 2-3 seconds ?
Regards,
ND

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Optimizing The Query And Index

Nov 4, 2000

hi, what are the tools that I can use to Optimize the query/ index.

I know that if I am running a query on a table I create index on the fields where I use in the where clause, is this a right thinking.

Someone told me how do I determine what columns should be indexed, I told him the fields that I use in the where clause should be indexed to speed up the process of retrieving the data. ..... is this answer correct. if not please advice the correct one.
Thanks

Ahmed

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Optimizing Query Execution...

Dec 17, 2005

We have SQL Server 2000 and int is an Oracle linked server. I'm trying to run the following query...

SELECT DISTINCT a.auf_nr AS OrderNo,
e.ku_name AS Customer,
d.bestell_dat AS OrdDate,
d.liefer_dat AS DelvDate,
CAST(SUM(b.anz) AS FLOAT) Qty,
CAST(SUM((CAST(c.breite AS FLOAT) / 1000 * CAST(c.hoehe AS FLOAT) / 1000) * b.anz) AS FLOAT) SQM,
CAST(SUM(a.liefer_offen) - (SUM(a.anz) - SUM(b.anz)) AS FLOAT) AvailDelv,
CAST(SUM(a.liefer_anz) AS FLOAT) Delvd,
CAST(SUM(c.sum_brutto*a.anz) AS FLOAT) Value

FROM liorder..LIORDER.AUF_STAT a,
liorder..LIORDER.AUF_LIP_STATUS b,
liorder..LIORDER.AUF_POS c,
liorder..LIORDER.AUF_KOPF d,
liorder..LIORDER.KUST_ADR e

WHERE a.auf_nr = b.auf_nr and
b.auf_nr = c.auf_nr and
c.auf_nr = d.auf_nr and
d.kunr = e.ku_nr and
a.auf_pos = b.auf_pos and
b.auf_pos = c.auf_pos and
b.lip_status = 7 and
c.ver_art !='V' and
a.history = 0 and
a.rg_stat != 2 and
e.ku_name IS not null and
e.ku_vk_ek = 0 and
d.bestell_dat BETWEEN '01/01/2005' and '12/17/2005'

GROUP BY a.auf_nr,
d.liefer_dat,
b.lip_status,
d.bestell_dat,
e.ku_name,
d.kopf_tour,
d.kopf_firma

HAVING CAST(SUM(a.liefer_offen)-(SUM(a.anz)-SUM(b.anz)) AS FLOAT) > 0

..and it takes around 2 minutes to show the results even if the date range is of the same date. I even tried to use an indexed column but I still get the same slow execution time. I even tried to create a UDF so that the WHERE clause would be resolved remotely on the Oracle DB but still the same. Is there anyway I can do it in much more efficient and faster way?

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Poor Query Optimizing

Nov 4, 2007

Hi there,

I've got a SQL 2005 table(DataTable) with 5.5 million rows and a clustered index on an integer column. The column is a foreign key pointing to another table (LookupTable) that associates the integer with an nvarchar(50) column. Both integer and nvarchar(50) columns are in a clustered index.

I'm running equivalent select statements with slightly different where clauses, and am not seeing the performance similarities I'd expect.

select * from DataTable join LookupTable on DataTable.Integer = LookupTable.Integer

1. Setting the where clause to the nvarchar(50) value on the LookupTable takes 64 seconds.
2. Setting the where clause to Integer = (select integer from LookupTable where nvarchar(50) = 'mysearchstring') takes 61 seconds.
3. Setting the where clause to Integer = 526 takes 1 second.

Is this poor design in SQL, or is it a misconfiguration? I would have expected SQL to modify my query to essentially be #3 in all cases before touching the DataTable, which would cause all three versions to take 1 second.

Thanks,
Jason

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Optimizing This Duplicate Finding Query

Sep 11, 2005

Hi everyone!

I am parsing a database structed like the following for duplicates.

Code:

keywordnegativeexactbroadphrase
Alpha0.120.36
Alpha0.120.37
Alpha0.120.37
Alpha0.220.37
Alpha0.120.37
Alpha0.120.37
Alpha0.120.37
Beta0.43212
Charlie0.240.31
Delta0.72212
Epsilon410.31
Foxtrot250.22
Grape420.215
Hotel 230.13
Indigo0.3721
Juliet21220.14
Kilroy0.3110.15
Lemon0.2201
Mario0.2502
Nugget0.130.72
Oprah2141
Polo01225
Polo01224
Polo01225
Q-Bert31442
Romeo12100.1
Salty2200.1
Tommy10.30.132.4
Uri10.30.132
Uri20.20.132
Uri20.30.122
Uri20.30.131
Vamprie0.120.1315
Wilco0.210.21
X-Ray00.220
Yeti020.20
Zebra1310

The duplicates that this thread relates to are the kind with duplicate "keyword" entries AND dissimilar field entries; i.e. :

Code:

keyword negative exact broad Phrase
Polo 0 122 4
Polo 0 122 5

I've come up with an SQL query that seems to return all of these duplicates (save one of each type- the 'real', unique entry). However I think I made the query very inefficient. My SQL is very bad; this query will be running over tens of thousands of rows, so if it can be at all optimized I would greatly appreciate your help!

What I have so far is:

Code:

string query1 = "SELECT * FROM TableName" +
" WHERE EXISTS (SELECT NULL FROM TableName" + " b" +
" WHERE b.[keyword]= " + "TableName"+ ".[keyword]" +
" AND b.[negative]<> " + "TableName"+ ".[negative]" +
" ORb.[keyword]= " + "TableName"+ ".[keyword]" +
" ANDb.[exact]<> " + "TableName"+ ".[exact]" +
" ORb.[keyword] = " + "TableName"+ ".[keyword]" +
" ANDb.[broad]<> " + "TableName"+ ".[broad]" +
" ORb.[keyword]= " +"TableName"+ ".[keyword]" +
" ANDb.[phrase]<> "+"TableName"+ ".[phrase]" +
" GROUP BY b.[keyword], b.[broad], b.[exact]" +
" HAVING Count(b.[keyword]) BETWEEN 2 AND 50000)" ;

the algoritm seems to check every column of every row in order to determine a duplicate. Seems straightforward to me, but alas slow...

Is there a better/faster way I can do this? Thanks for you help!

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Optimizing Query - Product Tips

Jan 6, 2004

Hello everyone!
I've got a problem with a real slow query, I would be very happy if somebody has any idea to improve the speed of it...
The idea is to get the top 2 products, a customer hasn't bought wich are in his interest...

query (simplificated)
-------------------------------------------------
SELECT TOP 2 prodID, Title, Price FROM bestSold7Days WHERE
prodID NOT IN (SELECT prodID FROM orders INNER JOIN orderProducts ON orders.orderID = orderProducts.orderID WHERE (orders.custID=394))
AND
(prodType = COALESCE((SELECT TOP 1 products.prodID FROM orders INNER JOIN orderProducts ON order.orderID = orderProducts.orderID INNER JOIN products ON orderProducts.prodID = products.prodID WHERE (orders.custID=394) GROUP BY products.prodType ORDER BY SUM(orderProducts.PCS) DESC), 2))
-------------------------------------------------
end query

(COALESCE is for replacing if the customer hasnt ordered anything, or hasnt ordered anything of this type)...

Thanks for any time spent!

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Optimizing A Query To Delete Duplicates

Jul 20, 2005

I have a DELETE statement that deletes duplicate data from a table. Ittakes a long time to execute, so I thought I'd seek advice here. Thestructure of the table is little funny. The following is NOT the table,but the representation of the data in the table:+-----------+| a | b |+-----+-----+| 123 | 234 || 345 | 456 || 123 | 123 |+-----+-----+As you can see, the data is tabular. This is how it is stored in the table:+-----+-----------+------------+| Row | FieldName | FieldValue |+-----+-----------+------------+| 1 | a | 123 || 1 | b | 234 || 2 | a | 345 || 2 | b | 456 || 3 | a | 123 || 3 | b | 234 |+-----+-----------+------------+What I need is to delete all records having the same "Row" when there existsthe same set of records with a different (smaller, to be precise) "Row".Using the example above, what I need to get is:+-----+-----------+------------+| Row | FieldName | FieldValue |+-----+-----------+------------+| 1 | a | 123 || 1 | b | 234 || 2 | a | 345 || 2 | b | 456 |+-----+-----------+------------+A slow way of doing this seem to be:DELETE FROM XWHERE Row IN(SELECT DISTINCT Row FROM X x1WHERE EXISTS(SELECT * FROM X x2WHERE x2.Row < x1.RowAND NOT EXISTS(SELECT * FROM X x3WHERE x3.Row = x2.RowAND x3.FieldName = x2.FieldNameAND x3.FieldValue <> x1.FieldValue)))Can this be done faster, better, and cheaper?

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Optimizing Speed

Sep 4, 2001

I have indexed my SQL Server tables to gain some speed on calling up tables and queries ( using VB and ADO ). It is still very slow...Is there a move I have to make once my tables are indexed or is there any tricks to improve the speed cause I am getting kinda desparate right now :(

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Optimizing Question

Jul 15, 2000

Hi all,

I have a question in regards to optimistic locking:

I have a database conversion that will be running on a SQL 7.0 system. The process needs to be completed ASAP and to this end, I have tried to set up all aspects of the server to be geared towards speed rather than redundancy for the duration of the process (i.e. moving heavily used tables to separate filegroups on a RAID 0 set, dedicating a separate disk for the database log). I was now looking at trying to tweak locking behaviour to enhance performance (as for the duration of the conversion, no other user will be connecting to the database - the only initator of data changes will be the conversion application, which feeds statements serially to the server). As far as I know changing lock settings is something that would be initiated by the application itself, but is there any property I can set on the server to further enhance performance in this area?

Thanks
A

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Sql Optimizing Tools

Jun 5, 2002

We are evaluating a tool by Lechotech that can optimize sql statements. It is a pretty good tool, but we would like to compare it against some others. Has anyone seen any other such tools?

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Optimizing A Trigger / Is There A Better Way

Jan 14, 2005

I'm no SQL wiz, just know basics to get me by ... What I'm trying to do is: everytime a record is inserted into an online orders table, that record needs to be inserted into another table in another database, but with added information.

This is the Trigger I came up with:

CREATE TRIGGER OtherDatabaseInsertTrigger
ON dbo.t_order
FOR INSERT AS

DECLARE @CLIENT VARCHAR(30)
DECLARE @OrderNumberID INT
SET @CLIENT = 'DevShed'

INSERT INTO test2.dbo.t_order (order_num,customer_num,
order_date,drop_date,package_id,us_customer,us_system,non_us_customer,
non_us_system,postage_selection,num_pages,num_sides,permit_number,
permit_city,permit_state,permit_zip,bre_company,bre_name_dept,bre_address1,
bre_address2,bre_city,bre_state,bre_zip,brc_company,brc_name_dept,brc_address1,
brc_address2,brc_city,brc_state,brc_zip,rae_company,rae_name_dept,rae_address1,
rae_address2,rae_city,rae_state,rae_zip,return_company,return_name_dept,
return_address1,return_address2,return_city,return_state,return_zip,salutation_other,
printcost,stock,production,personalization,postage_total,listcost,listcharged,
tax_total,order_total,discount,coupon,milestone_1,milestone_2,milestone_3,milestone_4,
milestone_5,milestone_6,has_logo,has_list,has_rad,tag,nonprofit_fee,order_problem,
experian_only,experian_orderid,experian_price,experian_returncode,experian_returnmessage,
experian_queryid,experian_amt_to_purchase,bp_bankname,bp_address1,bp_address2,bp_city,
bp_state,bp_zip,bp_country,bp_phone,bp_signername,bp_signertitle,bp_signeremail,logo_option,
logo_text,signature_option,list_option,layout_id,cd_only,cd_oi,cd_rc,cd_ot,cd_email,
shipping_id,shipping_charge,pfp_pnref,pfp_result,pfp_respmsg,pfp_authcode,pfp_avsaddr,
pfp_avszip,creditcard_num,ccexp_month,ccexp_year,cc_name_on_card,cust_postage)
SELECT order_num,customer_num,
order_date,drop_date,package_id,us_customer,us_system,non_us_customer,
non_us_system,postage_selection,num_pages,num_sides,permit_number,
permit_city,permit_state,permit_zip,bre_company,bre_name_dept,bre_address1,
bre_address2,bre_city,bre_state,bre_zip,brc_company,brc_name_dept,brc_address1,
brc_address2,brc_city,brc_state,brc_zip,rae_company,rae_name_dept,rae_address1,
rae_address2,rae_city,rae_state,rae_zip,return_company,return_name_dept,
return_address1,return_address2,return_city,return_state,return_zip,salutation_other,
printcost,stock,production,personalization,postage_total,listcost,listcharged,
tax_total,order_total,discount,coupon,milestone_1,milestone_2,milestone_3,milestone_4,
milestone_5,milestone_6,has_logo,has_list,has_rad,tag,nonprofit_fee,order_problem,
experian_only,experian_orderid,experian_price,experian_returncode,experian_returnmessage,
experian_queryid,experian_amt_to_purchase,bp_bankname,bp_address1,bp_address2,bp_city,
bp_state,bp_zip,bp_country,bp_phone,bp_signername,bp_signertitle,bp_signeremail,logo_option,
logo_text,signature_option,list_option,layout_id,cd_only,cd_oi,cd_rc,cd_ot,cd_email,
shipping_id,shipping_charge,pfp_pnref,pfp_result,pfp_respmsg,pfp_authcode,pfp_avsaddr,
pfp_avszip,creditcard_num,ccexp_month,ccexp_year,cc_name_on_card,cust_postage
FROM inserted;

SET @OrderNumberID = (SELECT @@IDENTITY)
UPDATE test2.dbo.t_order SET client = @CLIENT WHERE oid = @OrderNumberID;

I don't know if its possible to do an INSERT INTO SELECT with additional fields in the 2nd table, I was trying, but failed. Had to resort to the bottom piece of SQL to get the ID and run a separate query to add the additional items to the new record in table 2.

Any SQL masters out there that can help me make this better, or know of some other way to do this.

Thanks in advance!

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Optimizing Cursor

Jul 7, 2004

I've tried a bunch of different ways in an effort to stay away from using a cursor, but I haven't been able to accomplish what I need to do without one. So, I coded this process using cursors and performance (as expected) is pretty mediocre. I was wondering if someone could take a quick look and suggest a different approach or maybe suggest ways to optimize the current code.

*Attached* is my code.

TIA

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Optimizing/Improving WHERE

Oct 24, 2005

Here's a sample SELECT statement:

SELECT T1.F3
FROM T1 INNER JOIN T2 ON T1.F4 = T2.F4
WHERE
(T1.F1 > @iNum AND T2.F1 > @iNum)
OR
( @iNum2 * (T1.F1 - T2.F1)/(T1.F2 - T2.F2) ) + (T1.F1 - ((T1.F1 - T2.F1)/(T1.F2 - T2.F2) * T1.F2) ) > @INum

As you can see, the second part of the WHERE (after the OR) is much more complicated than the part before the OR. My query would run a lot faster if it tried the first part of the OR and didn't bother with the second part if the first part was satisfied. Is there any way to do this?

Thanks!

Tyler

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Need Help In Optimizing SQL Script.

May 4, 2006

Kudos to y'all!!! I have this SQL script...

SELECT * FROM OPENQUERY (liorder, '
SELECT DISTINCT
a.AUF_NR AS OrdNo,
e.KU_NAME AS Customer,
a.AUF_POS AS Pos,
f.PC_PANE_NO AS Pane,
f.PC_SGGL_SEQ AS Component,
f.PC_SGGL_COD AS GlassCode,
d.GL_BEZ AS GlassDesc,
a.ANZ AS Qty,
((c.BREITE/1000*c.HOEHE/1000)*a.ANZ) AS SQM,
(a.ANZ*c.SUM_BRUTTO) AS Val,
(CASE
WHEN(SELECT SUM(h.KF_FERT_QTY)
FROM LIPROD.KAPA_AUS_FERT h
WHERE a.AUF_NR = h.KF_ORDER_NO AND
a.AUF_POS = h.KF_ORDER_POS AND
f.PC_PANE_NO = h.KF_SCHEIB_NR AND
f.PC_SGGL_SEQ = CASE
WHEN h.KF_SEQ_NR = 0 THEN 1
ELSE h.KF_SEQ_NR
END AND
h.KF_SCHR_NR IN (2, 402, 502, 602)) IS NULL THEN 0
ELSE(SELECT SUM(h.KF_FERT_QTY)
FROM LIPROD.KAPA_AUS_FERT h
WHERE a.AUF_NR = h.KF_ORDER_NO AND
a.AUF_POS = h.KF_ORDER_POS AND
f.PC_PANE_NO = h.KF_SCHEIB_NR AND
f.PC_SGGL_SEQ = CASE
WHEN h.KF_SEQ_NR = 0 THEN 1
ELSE h.KF_SEQ_NR
END AND
h.KF_SCHR_NR IN (2, 402, 502, 602))
END) AS Done
FROM LIORDER.AUF_STAT a,
LIORDER.AUF_KOPF b,
LIORDER.AUF_POS c,
LIORDER.GLAS_DATEN d,
LIORDER.KUST_ADR e,
LIPROD.AUF_POS_COMP f
WHERE EXISTS
(SELECT g.AUF_NR
FROM LIORDER.AUF_STAT g
WHERE g.AUF_NR = a.AUF_NR AND
g.RG_OFFEN != 0) AND
EXISTS
(SELECT i.KF_ORDER_NO
FROM LIPROD.KAPA_AUS_FERT i
WHERE a.AUF_NR = i.KF_ORDER_NO AND
i.KF_SCHR_NR IN (2, 402, 502, 602)) AND
a.AUF_NR = b.AUF_NR AND
b.AUF_NR = c.AUF_NR AND
c.AUF_NR = f.PC_ORDER_NO AND
a.AUF_POS = c.AUF_POS AND
c.AUF_POS = f.PC_ORDER_POS AND
b.KUNR = e.KU_NR AND
f.PC_SGGL_COD = d.IDNR AND
a.HISTORY = 0 AND
b.AUF_OFF = 0 AND
c.VER_ART != ''V'' AND
e.KU_VK_EK = 0 AND
e.KU_NAME IS NOT NULL
ORDER BY a.AUF_NR DESC,
a.AUF_POS ASC')

...It is retrieving data from an Oracle linked server. But the execution time is so friggin' long! I tried running it and for around 30 minutes it hasn't shown any results. So I could even tell the exact time it would take to return results. Do you have any tips regarding query optimization? Thanks in advance.

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Jan 3, 2007

this code takes far too long to run any suggestions:

create table #minatest(
DatabaseName varchar(100),
pagecount varchar(100),
vfillfactor varchar(100),
TableName varchar(200),
IndexName varchar(100),
FragmentPercentage int,
newfragmentvalue int,
index_type_desc varchar(100),
index_level int
)

-- minatest table will contain indexes with fragmentation above 10% which need to be defragged
-- this will go through all databases
-- null indexes will not be affected

exec sp_msforeachdb'
use ?
INSERT INTO #minatest
SELECT
db_name(database_id),
phystat.page_count,
i.fill_factor,
OBJECT_NAME(i.object_id),
i.name,
phystat.avg_fragmentation_in_percent,
newfragmentvalue = 0,
index_type_desc,
index_level
FROM sys.dm_db_index_physical_stats(NULL, NULL, NULL, NULL, ''DETAILED'') phystat
JOIN sys.indexes i ON i.object_id = phystat.object_id AND i.index_id = phystat.index_id
WHERE phystat.avg_fragmentation_in_percent > 10 AND phystat.page_count < 10000
'

DECLARE @Counts int,
@i int,
@DatabaseName varchar(100),
@pagecount varchar(100),
@vfillfactor varchar(100),
@TableName varchar(200),
@IndexName varchar(100),
@sql nvarchar(4000),
@nfsql nvarchar(4000),
@FragmentPercentage int,
@params nvarchar(4000),
@index_type_desc varchar(100),
@index_level int,
@vnewfrag int

SELECT @params = N'@cnt int OUTPUT'

select @Counts = count(Databasename)
from #minatest -- sets the maximum amount of fields to go threw as a number

declare targets cursor -- declare cursor with values to search through
for
select * from #minatest

open targets -- open cursor

fetch next from targets into @DatabaseName,@pagecount,@vfillfactor,@TableName,@IndexName,@FragmentPercentage,@vnewfrag,@index_type_desc,@index_level-- take rows from table

select @i=0
while @@fetch_status=0 and @i<=@Counts-- set loop condition

begin

select @sql = 'USE '+@DatabaseName+'; '+
' ALTER INDEX '+@IndexName+' ON '+ @TableName+
' REBUILD with (ONLINE=ON,SORT_IN_TEMPDB=ON,STATISTICS_NORECOMPUTE=OFF);'
exec sp_executesql @sql
select @nfsql = 'select @cnt = avg_fragmentation_in_percent FROM sys.dm_db_index_physical_stats(NULL,NULL, NULL, NULL, ''DETAILED'') phystat JOIN '+@DatabaseName+'.sys.indexes i ON i.object_id = phystat.object_id AND i.index_id = phystat.index_id WHERE i.name='''+@IndexName+''' and index_type_desc='''+@index_type_desc+''' and index_level='''+CAST(@index_level as varchar(20))+''''
exec sp_executesql @nfsql ,@params, @cnt=@vnewfrag OUTPUT

update #minatest set newfragmentvalue = @vnewfrag where IndexName = @IndexName and TableName = @TableName
select @i=@i+1

fetch next from targets into @DatabaseName,@pagecount,@vfillfactor,@TableName,@IndexName,@FragmentPercentage,@vnewfrag,@index_type_desc,@index_level-- take next field of table

end

close targets
DEALLOCATE targets

ALTER TABLE #minatest DROP COLUMN index_type_desc,index_level
select * from #minatest -- displays which indexes where defraged and their new frag value
drop table #minatest

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Hi,
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table Company, fields CompanyID, CompanyName

table Address, fields AddressID, AddressName

table CompanyAddressAssoc, fields AssocID, CompanyID, AddressID

CompanyAddressAssoc is the many-to-many associative table for Company and Address. A search query is required that, given a search string ( i.e. 'TEST' ), return all Company -> Address records where either the CompanyName or AddressName starts with the parameter:

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FROM Company c

LEFT OUTER JOIN CompanyAddressAssoc caa ON caa.CompanyID = c.CompanyID

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Hi all,
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Please guide me to what optimizations can be done to this procedure. CREATE Procedure GetCDR_LikeTollFree
(
@theDuration int = null, --to find duration more than theDuration
@totalDuration bigint = null, --to find the total duration for the result set
@callerName varchar(255) = null,
@callingPartyNumber varchar(255) = null,
@originalCalledPartyNumber varchar(255) = null,
@finalCalledPartyNumber varchar(255) = null,
@dateTimeConnect datetime = null,
@dateTimeDisconnect datetime = null,
@clientMatterCode varchar(255) = null
)

AS
BEGIN
SELECT callingPartyNumber, AlertingName, originalCalledPartyNumber, finalCalledPartyNumber,
dateTimeConnect,
dateTimeDisconnect,
CONVERT(char(8), DATEADD(second, duration, '0:00:00'), 108) AS duration,
clientMatterCode

FROM CDR1.dbo.CallDetailRecord t1
LEFT JOIN CDR2.dbo.NumPlan t2 ON t1.callingPartyNumber=t2.DNorPattern

WHERE
(t1.callingPartyNumber LIKE ISNULL(@callingPartyNumber, t1.callingPartyNumber) + '%') AND
(t1.originalCalledPartyNumber LIKE ISNULL(@originalCalledPartyNumber, t1.originalCalledPartyNumber) + '%') AND
(t1.finalCalledPartyNumber LIKE ISNULL(@finalCalledPartyNumber, t1.finalCalledPartyNumber) + '%') AND
(t1.clientMatterCode LIKE ISNULL(@clientMatterCode, t1.clientMatterCode) + '%') AND
(@callerName is NULL OR t2.AlertingName LIKE '%' + @callerName + '%') AND
(t1.duration >= @theDuration) AND
((t1.datetimeConnect) >= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeConnect)), t1.datetimeConnect)) AND
((t1.dateTimeDisconnect) <= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeDisconnect)), t1.dateTimeDisconnect))

SET @totalDuration = (SELECT SUM(duration)

FROM CDR1.dbo.CallDetailRecord t1
LEFT JOIN CDR2.dbo.NumPlan t2 ON t1.callingPartyNumber=t2.DNorPattern

WHERE

(callingPartyNumber LIKE ISNULL(@callingPartyNumber, callingPartyNumber) + '%') AND
(originalCalledPartyNumber LIKE ISNULL(@originalCalledPartyNumber, originalCalledPartyNumber) + '%') AND
(finalCalledPartyNumber LIKE ISNULL(@finalCalledPartyNumber, finalCalledPartyNumber) + '%') AND
(clientMatterCode LIKE ISNULL(@clientMatterCode, clientMatterCode) + '%') AND
(@callerName is NULL OR t2.AlertingName LIKE '%' + @callerName + '%') AND
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((datetimeConnect) >= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeConnect)), datetimeConnect)) AND
((dateTimeDisconnect) <= ISNULL(convert(bigint,
datediff(ss, '01-01-1970 00:00:00', @dateTimeDisconnect)), dateTimeDisconnect))

)

RETURN @totalDuration

END
GO

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May 17, 2006

I have the following store proc and was wondering if I can optimized it by using a SELECT CASE instead of all those IF? I tried but don't know how to write it.
Thanks set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER PROCEDURE [dbo].[Get_Cl_SearchMultiColumn]
(
@strSearchTermColumnNamenvarchar (50),
@strSearchTermSearchTermnvarchar (200)
)

as

if (@strSearchTermColumnName = 'Monitor')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Monitor1,Monitor2
FROM Cl_Systems
WHERE contains(Monitor1,@strSearchTerm) or contains(Monitor2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'MonitorSerial')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Monitor1Serial,Monitor2Serial
FROM Cl_Systems
WHERE contains(Monitor1Serial,@strSearchTerm) or contains(Monitor2Serial,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'Microscope')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Microscope1,Microscope2
FROM Cl_Systems
WHERE contains(Microscope1,@strSearchTerm) or contains(Microscope2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'SerialMicroscope')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,SerialMicroscope1,SerialMicroscope2
FROM Cl_Systems
WHERE contains(SerialMicroscope1,@strSearchTerm) or contains(SerialMicroscope2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'Controller')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Controller1,Controller2
FROM Cl_Systems
WHERE contains(Controller1,@strSearchTerm) or contains(Controller2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'ControllerFirmware')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Cont1Firmware,Cont2Firmware
FROM Cl_Systems
WHERE contains(Cont1Firmware,@strSearchTerm) or contains(Cont2Firmware,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'SerialController')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,SerialController1,SerialController2
FROM Cl_Systems
WHERE contains(SerialController1,@strSearchTerm) or contains(SerialController2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'Joystick')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Joystick1,Joystick2
FROM Cl_Systems
WHERE contains(Joystick1,@strSearchTerm) or contains(Joystick2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'JoystickFirmware')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Joy1Firmware,Joy2Firmware
FROM Cl_Systems
WHERE contains(Joy1Firmware,@strSearchTerm) or contains(Joy2Firmware,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'SerialJoystick')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,SerialJoystick1,SerialJoystick2
FROM Cl_Systems
WHERE contains(SerialJoystick1,@strSearchTerm) or contains(SerialJoystick2,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'Camera')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Camera1,Camera2,Camera3,Camera4
FROM Cl_Systems
WHERE contains(Camera1,@strSearchTerm) or contains(Camera2,@strSearchTerm) or contains(Camera3,@strSearchTerm) or contains(Camera4,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'CameraSerial')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Camera1Serial,Camera2Serial,Camera3Serial,Camera4Serial
FROM Cl_Systems
WHERE contains(Camera1Serial,@strSearchTerm) or contains(Camera2Serial,@strSearchTerm) or contains(Camera3Serial,@strSearchTerm) or contains(Camera4Serial,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'ZMotor')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,ZMotor1,ZMotor2,ZMotor3
FROM Cl_Systems
WHERE contains(ZMotor1,@strSearchTerm) or contains(ZMotor2,@strSearchTerm) or contains(ZMotor3,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'Stage')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Stage1,Stage2,Stage3
FROM Cl_Systems
WHERE contains(Stage1,@strSearchTerm) or contains(Stage2,@strSearchTerm) or contains(Stage3,@strSearchTerm)
return 0
end

if (@strSearchTermColumnName = 'Lens')
begin
SELECT CustomerID,SystemId,CompanyName,City,State,Country,Lens1,Lens2,Lens3
FROM Cl_Systems
WHERE contains(Lens1,@strSearchTerm) or contains(Lens2,@strSearchTerm) or contains(Lens3,@strSearchTerm)
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I want to know how I can speed up inserting rows. Will stored procedures help at all? Any ideas are wanted. Thanks.

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