How to write a SQL based on a view can get the best performance ?

Hi ,
I am thinking about performance of sql based on VIEW .For the best performance ,How to do when I create and use a view ? for example , Should i use key in my where clause as select data from table? (of cause ,this key refers to the key of table which structure the view. ) , Could you give me any advice on creating and using view in term of performance ?

Hi Guixin Chen,
Performance depends on various factors. The major key factors are:
1. Result Set should be Small
2. Amount of Data Transferred should be minimum.
3. Number of Data Transfers should be minimum.
4. Search Overhead should be minimum.
5. Database Load should be minimum.
For more details, check the following docs.
Performance Notes
http://help.sap.com/saphelp_nw04s/helpdata/en/fc/eb3b7e358411d1829f0000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04s/helpdata/en/5b/320c40ac368f5ce10000000a155106/frameset.htm
You can also check Performance by,
1. Transaction code ST05
2. From ABAP Workbench using the menu path Test Performance Trace.
Dont forget to reward pts, if it helps ;>)
Regards,
Rakesh.

Similar Messages

How get the best performances with a McBook Pro 2,3GHz and 16 Go of Ram ?

Hi,
I've recently bought a MacBook Pro and I want to optimize my After Effects preferences to enjoy the best performances.
There's the specifications from Apple:
2.3GHz quad-core Intel Core i7
Turbo Boost up to 3.5GHz
16GB 1600MHz memory
512GB PCIe-based flash storage
Intel Iris Pro Graphics
NVIDIA GeForce GT 750M
with 2GB GDDR5 memory
Thanks in advance if one of you could help me to do this
Maurice

Optimizing for performance: Adobe Premiere Pro and After Effects | After Effects region of interest

How to write a sql query to retrieve data entered in the past 2 weeks

Hi,
I have file names and last accessed date(java.sql.Date format) stored in my database table, I would like to know how I can write a query to get the name of files accessed in the past 2 weeks,I use open sql server at the back end.
Thanks in advance.

This has essentially nothing to do with JDBC. JDBC is just an API to execute the SQL language using Java and thus interact with the databases.
Your problem is related to the SQL language, you don't know how to write the SQL language. I suggest you to go through a SQL tutorial (there is one at w3schools.com) and to read the SQL documentation which come along with the database in question. A decent database manfacturer has a website and probably also a discussion forum / mailinglist as well.
I'll give you a hint: you can just use equality operators in SQL like everywhere. For example: "WHERE date < somedate".

How do I get the best performance out of my graphics card under bootcamp?

I have a 20" iMac, I think it was 2009 I got it, maybe 2010. It has an nVidia 9400 graphics card. I have installed windows XP under bootcamp with which to play games specicially Star Trek online and Star Wars The Old Republic (also online game). Now the minimum graphics spec for SWTOR is an nVidia 7800 yet with the 9400 I can only play if I run everything on the lowest possible settings. I'd assumed that the 9400 being several models higher than the 7800 I should be able to run a higher level of graphics and seem to be capable of running better quality when playing games under OS X.
I may be wrong but it seems under bootcamp windows doesn't run my Mac at as high a level as it is capable. For one thing when I look under the specs it states I only have 2.7GB ram when the iMac actually has 4GB.
Am I just over estimating the graphics potential of my iMac or am I right in thinking that Windows under bootcamp isn't utilising the iMac's full potential and how can I fix this?
Any help will be appreciated.
Thanks.

you run into the limits of XP and built in graphics.
I would hope that you found in all these years how to install and get new moddified gpu drivers.
XP is limited and is 32-bit where each app gets 2GB address space also.
Windows 7 64-bit (or 8 even free for now to test out) otherwise wait to buy a new Mac.

System Overload & How to get the best G4 Performance

Okay all you Logic and OSX Gurus. I need your help. I've finally made the LOGIC leap from OS9 and have hit the SYSTEM OVERLOAD wall like many of you before me.
I've been pouring over this, and many other Forums and Blogs, for about two weeks now, and have tried many of the fixes / solutions to no avail. I estimate I'm now getting about 25% of my OS9 Logic performance from Logic in OSX.
One specific case in point is this. A four minute song sketch. No tempo changes. Four midi tracks, 6 Audio instruments and 2 EFX (1 Guitar Amp Pro, 1 Space Designer that's no even being used).
I have unsuccessfully tried to Bounce this to disc for two weeks now. The AUDIO and DISK I/O Meters barely register until the GUITAR AMP PRO track brings the AUDIO METER up to about 1/3rd usage. At various points in the Bounce the G4 will completely FREEZE, and I will have manually restart.
THINGS I HAVE TRIED, and continue to try are:
- Repairing Permissions
- Trashing Preferences
- Updating MOTU Drivers
- Changing Processor performance setting - which I cannot do BTW, because my system does not seem to support this option.
- Closing all Widgets
- Freeing up more Space on my Mac OSx startup disk (I now have 78.41 Gig available on a 114.49 Gig drive)
- Run Cocktail to clean up System logs and temporary files
- FREEZING TRACKS as a temporary 'fix'. This did nothing BTW but add more strain to the CPU and I still had about 1/3rd the usage with my GUITAR AMP Plugin (and it still crashed).
- Increased AUDIO BUFFER to 1024
So, (and I guess this is really two sides of the same question)...
1) How do I FIX this SYSTEM OVERLOAD problem, and
2) How do I "optimize" my Dual 1.25 G4 in order to get the best performance possible out of LOGIC PRO?
OTHER QUESTIONS I HAVE ARE:
- Does the G4 have the processing power needed to run LOGIC PRO?
- I'm confident adding RAM will "help" (can't hurt), but am I really dealing with a RAM Problem here or, again, can these processors really handle it?
BTW - I'm not looking for an excuse to go shopping for a Quad G5 (I mean who needs an excuse... . But, I'm really trying to determine if at the end of the day I will spend money on RAM, Hard Drives, whatever..., and then still be frustrated and end up shopping.
- Are SCSI drives a problem with Tiger / Logic? These Cheetah drives are fast (10,000 RPM), reliable, and have been great drives to record on. I'm trying to do this simple bounce to one of the Cheetahs and as I said it's just not happening.
- Does the startup volume size effect performance?
- Does the amount of free space on the start up drive effect performance?
- Firewire 400 vs 800? My sample library is on the Firewire drive, and I'm thinking this does not pull a lot on the CPU as these get loaded into memory before playing? Am I right about that? It is Firewire 400.
A long letter and a lot of questions. I thank you all in advance for any answers, guidance or direction you can give. Please also let me know if there is something I HAVEN'T asked, looked at or should be doing.
Best,
Kevin
Kevin Saunders Hayes
SYSTEM SPECS
Machine Name: Power Mac G4
Machine Model: PowerMac3,6
CPU Type: PowerPC G4 (3.3)
Number Of CPUs: 2
CPU Speed: 1.25 GHz
L2 Cache (per CPU): 256 KB
L3 Cache (per CPU): 2 MB
Memory: 1 GB
Bus Speed: 167 MHz
Boot ROM Version: 4.4.8f2
Logic 7.1.1 (885)
Pro Application Support 3.1
MOTU 896 - Latest drivers
2 - Seagate Cheetah 9 gig SCSI drives
1 - Oxford Firewire (Up to 400 Mb/sec) with EXS Library
G4 Duel 1.25 Mac OS X (10.4.3)

And after months of using Express, and a week of
using Logic, I hadn't had a system overload until
today. Now I'm having them all the time. It wasn't a
set up change, it wasn't running on the battery, it
wasn't running software monitoring, it's set up with
512 i/o buffer, medium processor buffer. And it
wasn't brought on by number of tracks - that's for
sure. After it started happenind and I took a break &
came back, I was sitting on my couch, Powerbook in
my lap, tapping a beat in with the onscreen
keyboard.... a SINGLE instrument, mind you. NO plugs,
no other tracks of ANY kind. And it happened.
There's a lot of great, relevant and very helpful info on this forum and it all helps and it all counts. But..... so many people are suffering this when moving up to Pro 7 from either Pro 6 or Express. One expects a change in system load when a major update comes along but more and more people are reporting that simply recording 1 or 2 tracks of audio, pure, no plug-ins or EQ is causing an overload whereas in the previous version(s) this was easily accomodated. This, you may have guessed, has happened to me as well. Are we to accept in 1 version increment (albeit a major one) there is such a massive increase in demand from hardware that you cannot record a pure no-plug-in stereo track? When going back to 6.4.3 it will happily record 8 at once, let you EQ and reverb and then do another 8 AND then another. With no troble at all.
It is pointing more and more towards fundamental flaws in the programming. Did L7 come out too soon? Are we just beta testing what is pro software? We are only on 7.1.1 and 6 went to 6.4.3 but at no stage was it this bad at the fundamentals of what the App is for. I love Logic, I really do, but I think, even with all the great help we are fighting what Apple should be addressing. Not that you can find/contact/talk to or get any sort of response from them.
I have tried but have gone back to 6.4.3 until 7.1.2 or even 7.2 appears, but I'm not paying for 7.2. My £200 upgrade from 6.4.3 is now sitting on a shelf desperately wanting to use it.

How to write a SQL query in SAP B1 2007 B with input parameters?

How to write a SQL query in SAP B1 2007 B with input parameters, on execution of which will ask for some input value from the user and the values will be selected from a list such as item list?

The syntax like
SELECT * FROM OITM T0 WHERE T0.ItemCode = '[%0\]'
Thanks,
Gordon

How to create dynamic context based on a structure defined in the program?

Hi Experts,
         I need to create a dynamic context based on a structure wa_struc which i have define programatically.
When I pass wa_struc to structure_name parameter of create_nodeinfo_from_struc, i get a runtime error:
"Parameter STRUCTURE_NAME contains an invalid value wa_struc."
How to create dynamic context based on a structure defined in the program?
I have written the code like this:
TYPES: BEGIN OF t_type,
            v_carrid TYPE sflight-carrid,
            v_connid TYPE sflight-connid,
         END OF t_type.
Data: i_struc type table of t_type,
         wa_struc type t_type.
data: dyn_node   type ref to if_wd_context_node.
data: rootnode_info   type ref to if_wd_context_node_info.
rootnode_info = wd_context->get_node_info( ).
clear i_struc. refresh i_struc.
select carrid connid into corresponding fields of table i_struc from sflight where carrid = 'AA'.
cl_wd_dynamic_tool=>create_nodeinfo_from_struct(
parent_info = rootnode_info
node_name = 'dynflight'
structure_name = 'wa_struc'
is_multiple = abap_true ).
dyn_node = wd_context->get_child_node( name = 'dynflight' ).
dyn_node->bind_table( i_struc ).
Thanks
Gopal
Message was edited by: gopalkrishna baliga

Hi Michelle,
          First of all Special thanks for your informative answers to my other forum questions. I really appreciate your help.
Coming back to this question I am still waiting for an answer. Please help. Note that my structure is not in a dictionary.
I am trying to create a new node. That is
CONTEXT
- DYNFLIGHT
CARRID
CONNID
As you see above I am trying to create 'DYNFLIGHT' along with the 2 attributes which are inside this node. The structure of the node that is, no.of attributes may vary based on some condition. Thats why I am trying to create a node dynamically.
Also I cannot define the structure in the ABAP dictionary because it changes based on condition
I have updated my code like the following and I am getting error:
TYPES: BEGIN OF t_type,
CARRID TYPE sflight-carrid,
CONNID TYPE sflight-connid,
END OF t_type.
Data: i_struc type table of t_type,
dyn_node type ref to if_wd_context_node,
rootnode_info type ref to if_wd_context_node_info,
i_node_att type wdr_context_attr_info_map,
wa_node_att type line of wdr_context_attr_info_map.
wa_node_att-name = 'CARRID'.
wa_node_att-TYPE_NAME = 'SFLIGHT-CARRID'.
insert wa_node_att into table i_node_att.
wa_node_att-name = 'CONNID'.
wa_node_att-TYPE_NAME = 'SFLIGHT-CONNID'.
insert wa_node_att into table i_node_att.
clear i_struc. refresh i_struc.
select carrid connid into corresponding fields of table i_struc from sflight where carrid = 'AA'.
rootnode_info = wd_context->get_node_info( ).
rootnode_info->add_new_child_node( name = 'DYNFLIGHT'
attributes = i_node_att
is_multiple = abap_true ).
dyn_node = wd_context->get_child_node( 'DYNFLIGHT' ).
dyn_node->bind_table( i_struc ).
l_ref_interfacecontroller->set_data( dyn_node ).
But now I am getting the following error :
The following error text was processed in the system PET : Line types of an internal table and a work area not compatible.
The error occurred on the application server FMSAP995_PET_02 and in the work process 0 .
The termination type was: RABAX_STATE
The ABAP call stack was:
Method: IF_WD_CONTEXT_NODE~GET_STATIC_ATTRIBUTES_TABLE of program CL_WDR_CONTEXT_NODE_VAL=======CP
Method: GET_REF_TO_TABLE of program CL_SALV_WD_DATA_TABLE=========CP
Method: EXECUTE of program CL_SALV_WD_SERVICE_MANAGER====CP
Method: APPLY_SERVICES of program CL_SALV_BS_RESULT_DATA_TABLE==CP
Method: REFRESH of program CL_SALV_BS_RESULT_DATA_TABLE==CP
Method: IF_SALV_WD_COMP_TABLE_DATA~MAP_FROM_SOURCE_DATA of program CL_SALV_WD_C_TABLE_V_TABLE====CP
Method: IF_SALV_WD_COMP_TABLE_DATA~MAP_FROM_SOURCE of program CL_SALV_WD_C_TABLE_V_TABLE====CP
Method: IF_SALV_WD_COMP_TABLE_DATA~UPDATE of program CL_SALV_WD_C_TABLE_V_TABLE====CP
Method: IF_SALV_WD_VIEW~MODIFY of program CL_SALV_WD_C_TABLE_V_TABLE====CP
Method: IF_SALV_WD_COMPONENT~VIEW_MODIFY of program CL_SALV_WD_A_COMPONENT========CP
-Gopal
Message was edited by: gopalkrishna baliga

How to write customer exit in my BI query to get (current fiscal quarter) and (current fiscal quarter - 1 ) without user input

Hi all,
I need your help how to write customer exit in my BI query to get (current fiscal quarter) and (current fiscal quarter - 1 ) without user input.
in my query info object is 0CALQUARTER and variable is ZFIS_QTR.
in 0CALQUARTER fiscal quarter stored in 201301,201302,201303,201304 and 201401 format, for current fiscal quarter 201401 and (current fiscal quarter - 1 ) would be 201304.
please replay ASAP to deliver the report to client.
thanks in advance.
-- Rakesh Nagpure

I am Getting the same error for both the codes that i have written...
Do i Need to write sth else in the code...
Code:
WHEN 'ZVLIVELEASES'.
IF I_STEP = 2.
        L_DATE = SY-DATUM.
        SELECT * FROM "DSO_ACTIVE_TABLE"
            INTO TABLE ITAB_LL where "EXPIRY_DATE" > L_DATE.
        LOOP AT ITAB_LL INTO WA_LL.
        CLEAR l_s_range.
        l_s_range-sign = 'I'.
        l_s_range-opt = 'EQ'.
        l_s_range-low = WA_LL-"EXPIRY_DATE".
       APPEND L_S_RANGE TO E_T_RANGE.
        ENDLOOP.
   ENDIF.
Error: Error for variable in customer enhancement ZLIVELEASES

How do I upgrade my drivers to get the best from my 9800Pro (fast writes?)

Hi - my first post so take it easy
Was told that this was the place to ask regards my PC
Its a Medion PC which has a Micro-Star MS-6701 Motherboard - as I understand it this board is an OEM one which MSI has made for the Medion Company
I wish to upgarde the drivers for the motherboard so that I cabn get the best from it and enable Fast Writes if possible
The reason for this is that even though I have a Radeon 9800Pro - 512MB of Ram and a P4 2.6GHz PC I am only getting a 3D mark of about 4800
Can anyone help me please ?
Details of board
Manufacturer MICRO-STAR INTERNATIONAL CO., LTD
Model MS-6701
Version
BIOS Vendor Phoenix Technologies, LTD
BIOS Version AWARD - 42302e31
BIOS Release Date 22/02/03
BIOS Properties Plug and Play, Flash, AGP
AGP
Revision 3.0
Rate 4x, 8x (8x enabled)
Available Rate 0x0000000c
Selected Rate 0x00000008
Aperture Size 128 MB
Sideband Addressing supported (enabled)
Fast Write not supported

These are details of my PC
Quote
Processor
Model : 1x Intel(R) Pentium(R) 4 CPU 2.66GHz
Speed : 2.67GHz
Performance Rating : PR2940 (estimated)
Type : Standard
L2 On-board Cache : 512kB ECC Synchronous ATC (8-way sectored, 64 byte line size)
Mainboard
Bus(es) : ISA AGP PCI USB FireWire/1394
MP Support : 2 CPU(s)
MP APIC : No
System BIOS : Phoenix Technologies, LTD 6.00 PG
System : MEDIONPC
Mainboard : MICRO-STAR INTERNATIONAL CO., LTD MS-6701
Total Memory : 511MB DDR-SDRAM
Chipset 1
Model : Silicon Integrated Systems (SiS) SiS648 CPU to PCI Bridge
Front Side Bus Speed : 4x 134MHz (536MHz data rate)
Total Memory : 512MB DDR-SDRAM
Memory Bus Speed : 2x 167MHz (334MHz data rate)
Video System
Monitor/Panel : Plug and Play Monitor
Adapter : RADEON 9800 PRO (Omega 2.5.22)
Adapter : RADEON 9800 PRO - Secondary (Omega 2.5.22)
Physical Storage Devices
Removable Drive : Floppy disk drive
Hard Disk : ST3120023A (111.8GB)
Hard Disk : Medion Flash XL MMC/SD USB Device
Hard Disk : Medion Flash XL CF USB Device
Hard Disk : Medion Flash XL MS USB Device
Hard Disk : Medion Flash XL SM USB Device
CD-ROM/DVD : IDE DVD-ROM 16X (CD 48X Rd) (DVD 6X Rd)
CD-ROM/DVD : PIONEER DVD-RW DVR-105 (CD 47X Rd, 31X Wr) (DVD 6X Rd, 4X Wr)
MultiMedia Device(s)
Device : MPU-401 Compatible MIDI Device
Device : Standard Game Port
Device : Creative SB Audigy 2 ZS (WDM)
Device : Creative Game Port
If anyone can help me get bit more from my PC I would be most happy
In games such as Vietcong and Hidden and Dangerous two I get pop up and some slow down - due to my monitor I HAVE to run games in 1024 res

How we can get the current running user information in BusinessOne

Hi experts,
How we can get the current running user information in BusinessOne Application,
Based on the user details i want to assign some functionality,
Regards,
Saidarao yakkala

Hi,
As per me you can't get detail by server side.
If you want to know who are connected then you can use sp_who2 procedure in SQL query.
That will display who are login.
For more detail you have to check LOG file on client side in SAP B1 > Log folder.
Thanks
Kevin

I have finally figured out how to export an iphoto album so that I can maintain the proper order of the photos after burning the file. How do I keep each individual photo title and description after exporting and burning?

I have finally figured out how to export an iphoto album so that I can maintain the proper order of the photos after burning the file. How do I keep each individual photo title and description after exporting and burning? Presently after exporting and burning each photo is identified by the file name rather than each individual title description.

File name and Title are not the same thing.
Filename is attached to the Jpeg file in the Finder.
Title is attached to the photo within the Jpeg file - as is the description. These are written to the Exif and IPTC metadata on export.
So: File -> Export. Kind: Jpeg or Tiff and Check the box at 'Title and Keywords'. This will write the Title, keywords and descriptions (though not explicitly stated) to the metadata. This can then be viewed in any app that understand this material.
You can choose, if you wish, to also use the Title as a Filename - that's an option at File Name
Regards
TD

How we can get the Trial balance in other currency -USD now.

Hi All,
I have an issue reg: My client had gone live in 2005 and only One Currency is defined u201CINR u201D as company code currency and Controlling area currency.
Controlling area settings are maintained as: Controlling Area Same as Company Code and Currency Type maintained is: Company code currency u2013 INR.
Even in OB22, No parallel currencies (Group currency, Hard currency, Index based currency, Global company currency) are defined.
Now, my client is asking to have the Trial Balance (F.08) in currency u201CUSDu201D,but at present we are getting it is "INR" only.
Is it possible to get the Trial balance (F.08) in USD , for the previous posted document values(They did all the postings in INR only)
How we can get the Trial balance in other currency -USD now.
Please suggest and guide.
Thanks in advance
Regards,
Sudha.

Hi,
First you need to enter USD as HARD CURENCY for your company code's country settings.
Then in OB22, for your Company code, enter Currency type 40 as additional local currency (LC2)
Legal Valuation
Exch rate type M
Sour Curr 1
TRs Date Type 2 ...and now save.
By making these changes, you will be getting F.08 in USD by specifying currency type as 40 in the selection screen of this report.
The only thing you wont get here is that.............you cannot determine USD values for documents, which are already posted into the system.
For the time being...you can use report S_ALR_87012279 - Structured Account Balances....in this selection screen enter USD as output currency, tran key date and exch rate type M....to get the LC values to be converted into USD during this report only. (this is as good as fast food)
As suggested above, use of special purpose ledger is all together a different concept....you dont need to go for it.
Regards,
Srinu

How we can get the current login user information.

Hai Experts,
How we can get the Curren Runnig user, while running the application,
I tried the below one, but it was not working,
Dim s As String
s = objApplication.Company.UserName
Regards,
Saidarao yakkala

Hi.
Are you try to get and present current user name in workbook or WAD ?
You may use user exit variable based on sy-uname.
If you run WAD you may use built webitem info_field and show current user name.
Regards.

I am using sql trace , please tel me where i can get the value for mode of lock and type of resource.

hi,
I am using sql trace , it has cols like mode and type , but they have numbers , is there any place where i can get the metadata of these values
yours sincerley

I have already found, but the problem is, i have to put cases to show lock in fornt of numbers , what i wanted
is if i could get this mapping any where in database like( metadata is kept) , then i have to put only join.
Q2) I have one more question in which col of the event, i can have lock request status , like weather it is
granted or wait.
yours sincerly
Q1. You can create a table from the data in the link that
Ashwin Menon posted, and use simple JOIN in order to replace the numbers with the Mode
Q2. Please check this great blog:
http://aboutsqlserver.com/2011/05/26/locking-in-microsoft-sql-server-part-4-how-to-detect-blocking/
Ronen Ariely
[Personal Site] [Blog] [Facebook]

How we can get the values from one screen to another screen?

hi guru's.
how we can get the values from one screen to another screen?
we get values where cusor is placed but in my requirement i want to get to field values from one screen to another screen.
regards.
satheesh.

Just think of dynpros as windows into the global memory of your program... so if you want the value of a field on dynpro 1234 to appear on dynpro 2345, then just pop the value into a global variable (i.e. one defined in your top include), and you will be able to see it in your second dynpro (assuming you make the field formats etc the same on both screens!).

How to write a SQL based on a view can get the best performance ?

Similar Messages

Maybe you are looking for