Need guidance on Query for fine Tuning

Hi ,
Please help me on the below query while rewriting. Actually it is taking 2.56 sec to give 2.25 lacs records.
I am trying to tune this query since 2 days,but not able to understand where to change & why it is taking that much time.
Using : Oracle 10g version
Tool : TOAD 8.6.1
There are Indexes on every column used in Where clause but still some table scanning full.
becoz of Inner Join it is taking much time, So Can anyone rewrite the below query for faster execution.
SELECT workorder.fincode,
     workorder.istask,
     workorder.status,
workorder.targstartdate,
     workorder.targcompdate,
     workorder.schedfinish,
workorder.actfinish,
     workorder.estdur,
     workorder.wonum,
     workorder.mprn,
workorder.sihousename AS wositehousename,
workorder.sihouseno AS wositehouseno,
workorder.sistreet AS wositestreet,
     workorder.sicounty AS wositecounty,
workorder.siposttown AS wositeposttown,
workorder.sipostcode AS wositepostcode,
     workorder.workorderid
FROM (maximo.sr
INNER JOIN
(maximo.relatedrecord INNER JOIN maximo.workorder
ON relatedrecord.relatedreckey =
(CASE
WHEN workorder.PARENT IS NOT NULL
THEN workorder.PARENT
ELSE workorder.wonum
END
AND relatedrecord.orgid = workorder.orgid
AND relatedrecord.siteid = workorder.siteid
AND relatedrecord.relatedrecclass = 'WORKORDER')
ON sr.ticketid = relatedrecord.recordkey
AND sr.orgid = relatedrecord.orgid
AND sr.siteid = relatedrecord.siteid
AND relatedrecord.CLASS = 'SR')
LEFT JOIN
frozen_quote@gqmfof
ON sr.ticketid = customer_enquiry_ref AND sr.quotever = quote_version
Explan Result:
PLAN_TABLE_OUTPUT
Plan hash value: 599875212
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Inst |IN-OUT|
| 0 | SELECT STATEMENT | | 1569 | 272K| 3362 (1)| 00:00:41 | | |
|* 1 | HASH JOIN | | 1569 | 272K| 3362 (1)| 00:00:41 | | |
|* 2 | HASH JOIN RIGHT OUTER | | 1263 | 92199 | 417 (4)| 00:00:06 | | |
| 3 | REMOTE | | 1 | 10 | 2 (0)| 00:00:01 | GQMFOF | R->S |
| 4 | NESTED LOOPS | | 1263 | 79569 | 414 (3)| 00:00:05 | | |
| 5 | MERGE JOIN CARTESIAN | | 3798 | 159K| 397 (3)| 00:00:05 | | |
| 6 | VIEW | VW_NSO_1 | 1 | 14 | 3 (34)| 00:00:01 | | |
| 7 | SORT UNIQUE | | 1 | 26 | 3 (34)| 00:00:01 | | |
|* 8 | INDEX RANGE SCAN | SYNONYMDOM_NDX1 | 1 | 26 | 2 (0)| 00:00:01 | | |
| 9 | BUFFER SORT | | 3798 | 107K| 397 (3)| 00:00:05 | | |
|* 10 | TABLE ACCESS FULL | RELATEDRECORD | 3798 | 107K| 394 (3)| 00:00:05 | | |
|* 11 | TABLE ACCESS BY INDEX ROWID| TICKET | 1 | 20 | 1 (0)| 00:00:01 | | |
|* 12 | INDEX UNIQUE SCAN | TICKET_NDX1 | 1 | | 0 (0)| 00:00:01 | | |
| 13 | TABLE ACCESS FULL | WORKORDER | 231K| 23M| 2943 (1)| 00:00:36 | | |
Predicate Information (identified by operation id):
1 - access("RELATEDRECORD"."RELATEDRECKEY"=CASE WHEN ("WORKORDER"."PARENT" IS NOT NULL) THEN
"WORKORDER"."PARENT" ELSE "WORKORDER"."WONUM" END AND "RELATEDRECORD"."ORGID"="WORKORDER"."ORGID" AND
"RELATEDRECORD"."SITEID"="WORKORDER"."SITEID")
2 - access("TICKET"."QUOTEVER"="QUOTE_VERSION"(+) AND "TICKET"."TICKETID"="CUSTOMER_ENQUIRY_REF"(+))
8 - access("DOMAINID"='TKCLASS' AND "MAXVALUE"='SR')
10 - filter("RELATEDRECORD"."CLASS"='SR' AND "RELATEDRECORD"."RELATEDRECCLASS"='WORKORDER')
11 - filter("TICKET"."ORGID"="RELATEDRECORD"."ORGID" AND "TICKET"."SITEID"="RELATEDRECORD"."SITEID")
12 - access("CLASS"="$nso_col_1" AND "TICKET"."TICKETID"="RELATEDRECORD"."RECORDKEY")
Regards,
GR

Add the NOCYCLE clause to your connect by statement CONNECT BY NOCYCLE PRIOR
You also might want to add the organization ID into your join.

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Look into these threads...
https://www.sdn.sap.com/irj/sdn/thread?threadID=119605
https://www.sdn.sap.com/irj/sdn/thread?threadID=101325
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Need help with query for converting columns to rows

Hello,
I know this is a very common question asked in the forum. I have searched regading this, i did find some threads, but i was not able to achieve what i require from the answers posted. So anybody please help me.
I have a table which is having multiple columns as follows:
Insert into table_1 (X,Y,Z,A,B,C,D,E,F,G,H,I) values (0,0,2,0,0,1,3,0,0,0,0,0);I want to convert the result into a two column, multiple rows i.e., I want the result as follows:
Col1 Col2
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Z      2
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D     3
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F     0
G     0
H     0
I      0Please anybody help me in writing the query for this..

Is this what you are expecting:
SQL> WITH T AS
2 (
3 SELECT 0 X, 0 Y, 2 Z, 0 A, 0 B, 1 C, 3 D, 0 E, 0 F, 0 G, 0 H, 0 I FROM DUAL
4 )
5 SELECT 'X' col1, X col2 FROM T
6 UNION ALL
7 SELECT 'Y' col1, Y col2 FROM T
8 UNION ALL
9 SELECT 'Z' col1, Z col2 FROM T
10 UNION ALL
11 SELECT 'A' col1, A col2 FROM T
12 UNION ALL
13 SELECT 'B' col1, B col2 FROM T
14 UNION ALL
15 SELECT 'C' col1, C col2 FROM T
16 UNION ALL
17 SELECT 'D' col1, D col2 FROM T
18 UNION ALL
19 SELECT 'E' col1, E col2 FROM T
20 UNION ALL
21 SELECT 'F' col1, F col2 FROM T
22 UNION ALL
23 SELECT 'G' col1, G col2 FROM T
24 UNION ALL
25 SELECT 'H' col1, H col2 FROM T
26 UNION ALL
27 SELECT 'I' col1, I col2 FROM T
28 /
C       COL2
X          0
Y          0
Z          2
A          0
B          0
C          1
D          3
E          0
F          0
G          0
H          0
C       COL2
I          0
12 rows selected.

Inputs for Fine tuning the program

Hi All,
Following code is taking lot of time... No i need to fine tune the same ,,,
Please give some inputs..
SELECT VBELN INTO VBUK-VBELN FROM VBUK
WHERE ( CMGST EQ 'B' OR CMGST EQ 'C' )
AND VBELN IN S_VBELN.
SELECT * FROM VBAP WHERE VSTEL IN SHP_PT
AND VBELN EQ VBUK-VBELN
AND VKGRU '101'.
SELECT VBELN POSNR EDATU FROM VBEP
INTO (VBEP-VBELN,VBEP-POSNR,VBEP-EDATU)
WHERE VBELN EQ VBAP-VBELN AND POSNR EQ VBAP-POSNR
AND LFREL EQ 'X' AND BMENG GT 0
AND EDATU BETWEEN DATE_LOW
AND DAT_HIGH
ORDER BY EDATU VBELN POSNR.
CLEAR LIPS.
PERFORM APPEND_DATA_TO_ITAB1 TABLES ITAB1
USING VBEP-VBELN VBEP-POSNR
VBEP-EDATU LIPS-VBELN
LIPS-POSNR vbap-VSTEL.
ENDSELECT.
ENDSELECT.
ENDSELECT.
Regards,
Chan
Moderator message: Please Read before Posting in the Performance and Tuning Forum
Edited by: Thomas Zloch on Nov 24, 2010 1:17 PM

HI,
Remove the select endselect the select all the entries into internal table then from tat internal table select by using for all entries into another internal table. for eq -
IF NOT s_vbeln[] IS INITIAL.
SELECT vbeln cmgst
        INTO TABLE itvbuk
        FROM vbuk
        WHERE vbeln IN s_vbeln.
DELETE itvbuk WHERE cmgst NE 'B' AND cmgst NE 'C' .
ENDIF.
IF NOT itvbuk[] IS INITIAL.
SELECT *
         FROM vbap
         INTO TABLE itvbap
         FOR ALL ENTRIES IN itvbuk
         WHERE vbeln EQ itvbuk-vbeln.
DELETE itvbap WHERE vkgru NE '101' AND NOT vstel IN shp_pt.
ENDIF.
Like wise modify the logic and check the secondary index is available for the where clause which you will be specifing.
Regards,
Madhukar Shetty

Slow starup of Java application - best practices for fine tuning JVM?

We are having problems with a java application, which takes a long time to startup.
In order to understand our question we better start with some background info. You will find the question(s) after that.
Background:
The setup is as follows:
In a client-server solution we have a win xp, fat client running java 1.6.0.18.
(Sun JRE). The fat client containt a lot of GUI, and connects to a server for DB access. Client machines are typical 1 to 3 years old (there are problems even on brand new machines). They have the client version of JRE - standard edition installed (Java SE 6 update 10 or better) Pretty much usual stuff so far.
We have done a lot of profiling on the client code, and yes we have found parts of our own Java code that needs improving. we are all over this. Server side seems ok with good response times. So far, we havent found anything about shaky net connections or endless loops in the java client code or similiar.
Still, things are not good. Starting the application takes a long time. too long.
There are many complicating factors, but here is what we think we have observed:
There is a problem with cold vs. varm starts of the application. Apparently, after a reboot of the client PC - things are really, really bad - and it takes (sometimes) up to 30-40 secs to start the application (until we arrive at the start GUI in our app).
If we run our application, close it down, and then restart
without rebooting, things are a lot better. It then usually takes
something like 15 - 20 sec. which is "acceptable". Not good, but acceptable,
Any ideas why?
I have googled it, and some links seems to suggest that the reason could be disk cache. Where vital jar are already in disk cache on th warm start? Does that make any sense? Virus scanners presumable runs in both cases.
People still think that 15 - 20 sec in start up on the warm start is an awful long time, even though there is a lot, a lot, of functionality in the application.
We got a suggestion to use IBMs JRE - as it can do some tricks (not sure what) our SUN JRE cant do concerning the warm and cold start problem. But thats is not an option for us. And noone has come up with any really good suggestions with the SUN JRE so far?
On the Java Quick Starter (JQS) -
improves initial startup time for most java applets and applications.
Which might be helpful? People on the internet seem more interested
in uninstalling the thing than actually installing it though?
And it seems very proprietary, where we cant give our Jar files to it?
We could obviously try to "hide" the problem in some way and make it "seem" quicker. Where perceived performance can be just as good as actual performance. But it does seem a bad solution. So for the cold start we will probably try reading the jar files and thereby have them in disk cache before startup of our application. And see if that helps us.
Still, ok the cold start is the real killer, but warm start isn't exactly wonderfull either.
People have suggested that we read more on the JVM and performance.
java.sun.com.javase/technologies/performance.jsp
java.sun.com.docs/hotspot/gc5.0/gc_tuning_5.html
the use of JVM flags "-Xms" "-Xmx" etc etc.
And here comes the question .. da da ...
Concerning various suggested reading material.
it is very much appreciated - but we will like to ask people here - if it is possibe to get more specific pointers. to where the gold might be buried.
I.e. in a an ideal world we would have time to read and understand all of these documents in depth. However, in this less than ideal world we are also doing a lot of very timeconsuming profiling in our own java code.
E.g. java garbage collection is is a huge subject - and JVm settings also. Sure, in the end we will probably have to do this all very thoroughly. But for now we are hoping for some heuristics on what other people are doing when facing a problem like ours..?
Young generation, large memory pages, garbage collection threads ect. all sounds interesting - but what would you start with?
If you don't have info to decide - what kind of profiling would you be running and then adjust what JVM setting in your trials?
In this pressed for time scenario. Ignorance is not bliss. But makes it hard to pinpoint the or those JVM parameters to adjust. So some good pointers from experienced JVM "configurators" will be much appreciated!
Actually, If we can establish that finetuning of these parameters is a good idea, it will certainly also be much easier to allocate the time for doing so. - reading, experimenting etc. in our project.
So, All in all , what kinds of performance improvements can we hope for? 5 out of 20 secs on the warm start? Or is it 10 % nitpicking? Whats the ball park figure for what we can hope to achieve here given our setup? What do you think based on above?
Maybe someone out there have done some finetuning of JVM parameters in a similiar PC environments like, with similiar fat clients...? Finetuning so and so - gave 5 secs. So start your work with these one-two parameters?
Something like that - some best practices? Thats what we are hoping for.
best wishes
-Simon

Thanks for helpful answer from both you and kajbj.
The app doesn't use shared network drives.
What are you doing between main starts to get executed and the UI is
displayed?
Basicly, Calculating what to show in the UI. Accessing server - not so much, there are some reads from a cache, but the profiling doesnt indicate that it should be a problem. Sure, I could shift the startup time to some other slot, but sofar I havent found a place where the end-user wouldnt be annoyed.> Caching of something would seem most obvious. Normal VM stuff >seems unlikely. With profiling i basicly find that ''everything'' takes a lot longer in the cold start scenario. Some of our local java methods are going to be rewritten following our review. But what else can be tuned?You guys dont think the Java Quick Start approach, with more jars in disk cache will give something? And how should that be done/ what does people do?I.e. For the class loader I read something about
1.Bootstrap class loader
2.Extensions class loader
3.System class loader
and is wondering if this has something to do with the cold start problem?
The extensions class loader loads the code in the extensions directories (<JAVA_HOME>/lib/ext
So, we should move app classes to ext? Put them in one jar file? (We have many). Best practice about that?
Otherwise it seems to me that it must be about finetuning the JVM?
I imagine that it is a question about:
1. the right heap size
2. the right garbage collection scheme
Googling heap size for XP
CHE22 writes:
You are right; -Xms1600M works well, but -Xms1700M bombs
Thats one best practice or what?
On garbage collection, there are numerous posts, and much "masters of Java black art" IMHO, And according to profiling GC is not really that much of a problem anyway? Still,
Based on my description I was hoping for a short reply like "try setting these two parameters on your xp box, it worked for me" ...or something like that. With no takers on that one, I fear people are saying that there is nothing to be gained there?
we read:
[ -Xmx3800m -Xms3800m
Configures a large Java heap to take advantage of the large memory system.
-Xmn2g
Configures a large heap for the young generation (which can be collected in parallel), again taking advantage of the large memory system. It helps prevent short lived objects from being prematurely promoted to the old generation, where garbage collection is more expensive.
Unless you have problems with pauses, try granting as much memory as possible to the virtual machine. The default size (64MB) is often too small.
Setting -Xms and -Xmx to the same value increases predictability by removing the most important sizing decision from the virtual machine. On the other hand, the virtual machine can't compensate if you make a poor choice.
The -XX:+AggressiveHeap+ option inspects the machine resources (size of memory and number of processors) and attempts to set various parameters to be optimal for long-running, memory allocation-intensive jobs]
So is Setting -Xms and -Xmx and -XX:AggressiveHeap
best practice? What kind of performance improvement should we expect?
Concerning JIT:
I read this one
[the impact of the JIT compiler is obvious on the graph: at startup the time taken is around 500us for the first few values, then quickly drops to 130us, before falling again to 70us, where it stays for 30 minutes,
for this specific issue, I greatly improved my performances by configuring another VM argument: I set -XX:CompileThreshold=50]
The size of the cache can be changed with
-Xmaxjitcodesize
This sounds like you should do something with JIT args, but reading
// We disable the JIT during toolkit initialization. This
// tends to touch lots of classes that aren't needed again
// later and therefore JITing is counter-productiive.
java.lang.Compiler.disable();
However, finding
the sweet spots for compilation thresholds has been tricky, so we're
still experimenting with the recompilation policy. Work on it
continues.
sounds like there is no such straigth forward path, it all depends...
Ok, its good, when
[Small methods that can be more easily analyzed, optimized, and inlined where necessary (and not inlined where not necessary). Clearly delineated uses of data so that usage patterns and lifetimes are apparent. ]
but when I read this:
[The virtual machine is responsible for byte code execution, storage allocation, thread synchronization, etc. Running with the virtual machine are native code libraries that handle input and output through the operating system, especially graphics operations through the window system. Programs that spend significant portions of their time in those native code libraries will not see their performance on HotSpot improved as much as programs that spend most of their time executing byte codes.]
I have the feeling that we might not able to improve performance that way?
Any comments?
otherwise i was wondering about
-XX:CompileThreshold=50 -Xmaxjitcodesize (large, how large?)
Somehow, we still feel that someone out there should have experienced similiar problems? But obviously there is no guarantee that the someone should surf by here!
In c++ we used to just write everything ourselves. Here it does seem to be a question about the right use of other peoples stuff?
Where you are kind of hoping for a shortcut, so you dont have to read endless number of documents, but can find a short document that actually addresses your problem ... well.
-Simon
Edited by: simoncpm on Mar 15, 2010 3:43 PM
Edited by: simoncpm on Mar 15, 2010 3:53 PM

Query for Performance tuning

Hi,
I have attached my query and explain plan for that query. This create statement takes around 1.5 hrs for 200K records.
Is there any way to tune the query.
CREATE TABLE SC1.TMP_MP_XYZ
PARALLEL 4 TABLESPACE FT_WORKAREA NOLOGGING AS
SELECT /*+ ORDERED USE_HASH(x,d) INDEX_FFS(x) PARALLEL(d,4) */
d.ROWID dis_rowid
FROM SC2.TMP_GLOBAL PARTITION (PM200802) x,
SC1.ba_DISP_XX PARTITION (PM200802) d
WHERE x.dsp_hash IN
(d.dsp_hash,
TRUNC (d.dsp_hash, -14),
TRUNC (d.dsp_hash, -7),
TRUNC (d.dsp_hash, -14) + MOD (d.dsp_hash, POWER (10, 7))
AND LOWER (d.url_name) LIKE x.rule || '%'
AND BITAND (d.xflag, 1) = 0
AND BITAND (d.xflag, 1) = 0
Statement Id=14 Type=TABLE ACCESS
Cost=17004 TimeStamp=06-03-08::10::04:37
(1) CREATE TABLE STATEMENT CHOOSE
Est. Rows: 274 Cost: 68,076
LOAD AS SELECT
(14) CONCATENATION
(4) HASH JOIN
Est. Rows: 1 Cost: 17,019
(2) UNIQUE INDEX FAST FULL SCAN SC2.IMP_TMP_GLOBAL__NAME [Not Analyzed]
Est. Rows: 146,873 Cost: 15
(3) TABLE ACCESS FULL SC1.BA_DISP_XX [Analyzed]
Blocks: 2,436 Est. Rows: 32 of 31,951 Cost: 17,004
(7) HASH JOIN
Est. Rows: 1 Cost: 17,019
(5) UNIQUE INDEX FAST FULL SCAN SC2.IMP_TMP_GLOBAL _NAME [Not Analyzed]
Est. Rows: 146,873 Cost: 15
(6) TABLE ACCESS FULL SC1.BA_DISP_XX [Analyzed]
Blocks: 2,436 Est. Rows: 32 of 31,951 Cost: 17,004
(10) HASH JOIN
Est. Rows: 1 Cost: 17,019
(8) UNIQUE INDEX FAST FULL SCAN SC2.IMP_TMP_GLOBAL__NAME [Not Analyzed]
Est. Rows: 146,873 Cost: 15
(9) TABLE ACCESS FULL SC1.BA_DISP_XX [Analyzed]
Blocks: 2,436 Est. Rows: 32 of 31,951 Cost: 17,004
(13) HASH JOIN
Est. Rows: 1 Cost: 17,019
(11) UNIQUE INDEX FAST FULL SCAN SC2.IMP_TMP_GLOBAL _NAME [Not Analyzed]
Est. Rows: 146,873 Cost: 15
(12) TABLE ACCESS FULL SC1.BA_DISP_XX [Analyzed]
Blocks: 2,436 Est. Rows: 32 of 31,951 Cost: 17,004
- Mahesh

First, can you repost with better formatting. Your execution plan has lost any indentation, and everything is at the same level, which makes it difficult to work out the real order of execution. Put the SQL statement and plan between lines with and on them, but with CODE in lower case i.e. code, which the forum engine recognises.
Second, you seem to have four full table scans on ba_DISP_XX, which is probably due to the IN clause in the WHERE. I don't know what indexes you have, because you don't mention it. But Oracle cannot use ordinary indexes on columns when you apply a function or expression to that column. Which is what you are doing to the dsp_hash column, with the TRUNC function.
So, the quickest comments I can make are:
Investigate using function based indexes, but you may need several of them, which all take up disk space.
Rewrite the query to not use TRUNC, or to use it in a standard way so that a single function based index could be used.
Get rid of the hints. You are explicitly telling Oracle to use a HASH join, and PARALLEL scan the ba_DISP_XX table. Which is what it is doing in the execution plan. So you are getting what you have asked for.
The query is very odd. Where is the proper join between tables x and d? I see an IN between them, which is unlikely to be the join. And a LOWER LIKE. If this is the join, then create a function based index on LOWER (d.url_name). Again, without a suitable index, Oracle will scan the full table.
Bottom line - the query is doing what you want, because you have used hints to tell it to scan that table and use a HASH join, and without using function based indexes Oracle cannot used ordinary indexes for this query. So it will table scan either way.
John

Proxy to JDBC scenario need dynamic sql query for sender .

Hi Experts,
I am developing proxy to jdbc scenario. in this i need to pass dynamic sql query whre we are passing classical method like below.
while we are passing select stmt in constant and mapped with access field and key field mapped with key field.
MY requirement is like instead of passing select stmt in constant where i can generate dynamically and passed in one field and mapped with access field.

Hi Ravinder,
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Need the sql query for IN clause.

Hi All,
i have item data like --
IBM 200 and IBM 500
have present code like this ----select * from emp where in (IBM 200 and IBM 500);
so i need change or repalce like ('IBM 200','IBM 500')
Any body please help me out this..
Need to get out put 'IBM 200','IBM 500' from data IBM 200 and IBM 500 ...
Edited by: anbarasan on Oct 17, 2011 10:30 PM

Please consider the following when you post a question. This would help us help you better
1. New features keep coming in every oracle version so please provide Your Oracle DB Version to get the best possible answer.
You can use the following query and do a copy past of the output.
select * from v$version 2. This forum has a very good Search Feature. Please use that before posting your question. Because for most of the questions
that are asked the answer is already there.
3. We dont know your DB structure or How your Data is. So you need to let us know. The best way would be to give some sample data like this.
I have the following table called sales
with sales
as
      select 1 sales_id, 1 prod_id, 1001 inv_num, 120 qty from dual
      union all
      select 2 sales_id, 1 prod_id, 1002 inv_num, 25 qty from dual
select *
from sales 4. Rather than telling what you want in words its more easier when you give your expected output.
For example in the above sales table, I want to know the total quantity and number of invoice for each product.
The output should look like this
Prod_id   sum_qty   count_inv
1         145       2 5. When ever you get an error message post the entire error message. With the Error Number, The message and the Line number.
6. Next thing is a very important thing to remember. Please post only well formatted code. Unformatted code is very hard to read.
Your code format gets lost when you post it in the Oracle Forum. So in order to preserve it you need to
use the {noformat}{noformat} tags.
The usage of the tag is like this.
<place your code here>\
7. If you are posting a *Performance Related Question*. Please read
   {thread:id=501834} and {thread:id=863295}.
   Following those guide will be very helpful.
8. Please keep in mind that this is a public forum. Here No question is URGENT.
   So use of words like *URGENT* or *ASAP* (As Soon As Possible) are considered to be rude.

Need a single query for all IF conditions

I have the following requirements which looks at two parameter p_batch and p_frequency and frames a select to query from the Employers table.
Can I achieve all these in a single select statement? If so how to do it?
Please help.
Thank you.
IF p_batch = 1 and p_frequency = 2 then
SELECT er.employer_id
FROM employers er
WHERE SUBSTR (er.name, 1, 1) BETWEEN 'A' AND 'M'
AND er.freq_flag = 2
ORDER BY er.name asc;
ELSIF p_batch = 2 and p_frequency = 2 then
Open cursor for processing employer starting with N to Z
SELECT er.employer_id
FROM employers er
WHERE SUBSTR (er.name, 1, 1) BETWEEN 'N' AND 'Z'
AND er.freq_flag = 2
ORDER BY er.name asc;
ELSIF p_batch = 1 and p_frequency = 1 then
Open cursor for processing employer starting with A to M for all ER
SELECT er.employer_id
FROM employers er
WHERE SUBSTR (er.name, 1, 1) BETWEEN 'A' AND 'M'
ORDER BY er.name asc;
ELSIF p_batch = 2 and p_frequency = 1 then
Open cursor for processing employer starting with N to Z for all ER
SELECT er.employer_id
FROM wweb.ptei_employers er
WHERE SUBSTR (er.name, 1, 1) BETWEEN 'N' AND 'Z'
ORDER BY er.name asc;
ELSE
-- Return as no need to send any mails
END IF;

Hi,
Sure, you can do that in a single statement. Here's one way:
SELECT       employer_id
FROM       employers
WHERE       SUBSTR (name, 1, 1) BETWEEN CASE p_batch
                             WHEN 1 THEN 'A'
                             WHEN 2 THEN 'N'
                           END
                     AND      CASE p_batch
                             WHEN 1 THEN 'M'
                             WHEN 2 THEN 'Z'
                           END
AND       (     (     p_frequency = 2
          AND     freq_flag   = 2
       OR     p_frequency = 1
ORDER BY name
;

Need guidance in query optimization

hi everyone.
This query takes more than 400 milli seconds to execute.it executes more than 25 times.make the web page slow.
can anyone provide guidance in optimizing this query
SELECT
     DISTINCT *
FROM
     PRICING_ANALYST
WHERE
     USER_ID IN
          SELECT
          FROM
               PRICING_ANALYST pa,
               ALC_PROJECT p,
               REQUEST r,
               ALCG_TEMP_QUOTE q,
               ALC_USER u,
               REQUESTER, ALC_COUNTRY
          WHERE
               r.REQUEST_ID = 172938
               AND
               r.temp_quote_ref_num = q.temp_quote_ref_num
               AND
               r.user_id = q.user_id
               AND
               r.project_id = q.project_id
               AND
               pa.country_code = q.country_code
               AND
               q.country_code = alc_country.country_code
               AND
               p.project_id = r.project_id
               AND
               pa.user_id = u.user_id
               AND
               requester.user_id = p.user_id
               AND
               requester.project_id = p.project_id
               AND
                    pa.CUSTOMER_EQUANT = 'Y'
                    OR
                    pa.CUSTOMER_NEW_EQUANT = 'Y'
                    OR
                    pa.CUSTOMER_EXISTING_EQUANT = 'Y'
                    OR
                    pa.CUSTOMER_EXISTING_GLOBALONE = 'Y'
                    OR
                    pa.CUSTOMER_OTHERS = 'Y'
                    OR
                    pa.CUSTOMER_FRANCE_TELECOM = 'Y'
                    OR
                    pa.CUSTOMER_SPRINT = 'Y'
               AND
               pa.COUNTRY_CODE = q.COUNTRY_CODE
               AND
                    pa.Business_Opportunity IS null
                    OR
                    substr(pa.Business_Opportunity, instr(pa.Business_Opportunity,(r.Business_Opportunity || '''')), length(r.Business_Opportunity))= r.Business_Opportunity)
                    AND
                    pa.REQUEST_local_loop = 'Y'
                    AND
                    substr(pa.ACCESS_TECH_ID, instr(pa.ACCESS_TECH_ID, (q.ACCESS_TECH_ID || '''')), length(q.ACCESS_TECH_ID)) = q.ACCESS_TECH_ID
               )

Hi,
Pl make sure all tables related to this query are analyzed recently with indexes, try to preserve the explain plan of the queries when it is running properly, so we can compare if slow running query, any change in the plan.
Dilipkumar Patel

Need help with query for OITW

I want to query a list that gives me all OnHand quantities for the Warehouses in one line per item:
Item, Qty Whs1, Qty Whs2 ...
Item1, Qty1_1, Qty1_2 ...
Item2, Qty2_1, Qty2_2 ...
Could somebody put me in the right direction?
Thanks
Franz

Try this:
SELECT P.Itemcode, T.ItemName,
(Select U_NF_LagPlatz1 from OITW where WhsCode = 'NFE-1' and itemcode = T.Itemcode),
(Select U_NF_LagPlatz2 from OITW where WhsCode = 'NFE-1' and itemcode = T.Itemcode),
    [NFE-1] AS Q1, [2] AS Q2, [3] AS Q3, [4] AS Q4,
    [5] AS Q5, [6] AS Q6, [7] AS Q7, [8] AS Q8,
    [9] AS Q9, [10] AS Q10
FROM dbo.OITM T
INNER JOIN
(select Itemcode,OnHand, Whscode from oitw) s
PIVOT
    sum(onhand)
    FOR whscode IN ([NFE-1],[2],[3],[4],[5],[6],[7],[8],[9],[10])
) p ON P.ItemCode = T.ItemCode
ORDER BY P.[Itemcode]
Regards,
Bala
Edited by: Balakumar Viswa on Jul 26, 2010 3:06 PM

Need an MDX query for Date range

Hi there,
My requirement is to filter sales from 1st of month to until holiday of the month. I am able to use to ":" range function for filtering, but I am not able to filter on holiday date. Becuase both filter and exists are giving set results, I need
member expression to use range function. Please let me know ASAP.
Thanks,
ATRSAMS

Hi ATRSAMS ,
You can get the first member of the month with the OpeningPeriod function, and item(#) to have a specific member from a set .
So if you want first member from your set : filter(.....).ITEM(0)
Regards, David .

Need T-SQL query for Below condition, Thanks!

experts,
i having a table with below data,
declare @tbl table (uid int, name varchar(10), id int)
insert table @tbl values (1, 'val1', 6)
insert table @tbl values (2, 'val2', 6)
insert table @tbl values (3, 'val2', 8)
insert table @tbl values (4, 'val1', 8)
insert table @tbl values (5, 'val2', 7)
insert table @tbl values (6, 'val1', 10)
need to get all rows for those "id"'s which having both "name" ("val1" & "val2")?
below should be output, thanks!@
declare @tbl table (uid int, name varchar(10), id int)
insert table @tbl values (1, 'val1', 6)
insert table @tbl values (2, 'val2', 6)
insert table @tbl values (3, 'val2', 8)
insert table @tbl values (4, 'val1', 8)

here you go with full illustration
declare @tbl table (uid int, name varchar(10), id int)
insert @tbl values (1, 'val1', 6)
insert @tbl values (2, 'val2', 6)
insert @tbl values (3, 'val2', 8)
insert @tbl values (3, 'val10', 8)
insert @tbl values (4, 'val1', 8)
insert @tbl values (5, 'val2', 7)
insert @tbl values (6, 'val1', 10)
insert @tbl values (6, 'val24', 11)
SELECT *
FROM @tbl t
WHERE EXISTS
SELECT 1
FROM @tbl
WHERE id = t.id
GROUP BY id
HAVING COUNT(DISTINCT CASE WHEN name IN ('val1','val2') THEN name END) = 2
and name IN ('val1','val2')
output
uid name id
1 val1 6
2 val2 6
3 val2 8
4 val1 8
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Need guidance selecting module for training

hi friends,
I have done my Bachelor of engineering in computers and after that i have worked as a developer in an MNC. After that i have done my MBA in Systems and IT.I had knowledge of ITIL project management but nothing majorly of marketing or finance .Now i am selecting in a big MNC where i am going to be trained on any one functional module of my choice from limited choice.
Being a IT guy i am totally confused as to which module to select .I need some advice which module will be best suited for me.what is the current trend which module is in hot demand.I am sure i dont like FICO module but other than that all modules seem to be domain specific.
Is there any module which will be useful for an IT guy.?
please reply.and guide me...

Its a million dolloar question which BILL GATES only can solve....!!!
Learning functional module by training or books is just gaining theory knowledge. In order to understand various industry terminology and business processes either you should have worked in different industries or you get by experience.
Wish you good luck....
Regards,
Jagadish

Need guidance on Query for fine Tuning

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