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  • can we use something IN and something NOT in mysql

    - by JPro
    I want to know if I can use something like this : If yes, then what will be order ? I dont seem to understand quite well the explain plan of mysql Select * from results where TestCase NOT IN (select TestCase from results where Verdict <> 'PASS' and StartTime > DATE_SUB(NOW(), INTERVAL 2 MONTHS)) and TestCase IN (Select TestCase from testcases where Type = 'NONOS') EDIT : Also how can I order by StartTime to display the latest first?

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  • registerForRemoteNotificationTypes causes app to exit immediately

    - by esilver
    I'm seeing behaviour on my iPhone where debug builds immediately exit after a call to [[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert]; The debugger reports it exited with the message Terminating in response to SpringBoard's termination. This behaviour doesn't happen on my ad hoc distribution builds. Can anyone explain this behavior?

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  • Algorithms for subgraph isomorphism detection

    - by Jack
    This a NP Complete problem. More info can be found here http://en.wikipedia.org/wiki/Subgraph_isomorphism_problem The most widely used algorithm is the one proposed by Ullman. Can someone please explain the algorithm to me. I read a paper by him and couldn't understand much. Also what other algorithms for this problem. I am working on an image processing project.

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  • Compare equality of char[] in C

    - by rksprst
    I have two variables: char charTime[] = "TIME"; char buf[] = "SOMETHINGELSE"; I want to check if these two are equal... using charTime == buf doesn't work. What should I use, and can someone explain why using == doesn't work? Would this action be different in C and C++?

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  • email address in the url

    - by phoenix24
    Hi, I am passing the email address as part of the url, for ex. http://example.com/hello/[email protected] but, when being passed to the application controller it is changed to " user%40hotmail.com ". I can't seem to understand this special character escaping; confusion. please help me explain the problem here, and also what can I do to fix it. I am using python's "webapp" web application framework.

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  • What is Covariance and Contravariance

    - by xyz
    Please explain me in simple terms (if possible simple example) the covariance and contravariance in c# .net . I know many are available(even in stackoverflow) but my problem is in which scenario I should use that is not explained in the articles that I am refering to. e.g. Covariance and Contravariance in Delegates (C# Programming Guide) Thanks

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  • Testing Shake events on Android Emulator

    - by mob-king
    Can any one help with how to test sensor events like shake on Android Emulator. I have found some posts pointing to openintents but can anyone explain how to use it in android 2.0 avd http://code.google.com/p/openintents/wiki/SensorSimulator This has some solution but while installing OpenIntents.apk on emulator gives missing library error.

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  • svg Path details

    - by Ravi Teja
    path fill="none" stroke="#000000" d="M151.5,85.5c0-36.48,29.52-66,66-66" can anyone explain d="" in detail Im able to understand M tag but i can understand what C tag is? and their details c0-36.48,29.52-66,66-66

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  • Internet service providers

    - by gautam kumar
    I am unclear about the differences between international, national, regional and local ISPs. Please explain the differences and their importance, with examples. I am new to this site, so please forgive me if my question is not up to your expectations.

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  • Msql Partitioning - Key vs Hash vs List vs Range

    - by Imran Omar Bukhsh
    I went through some of the documentation of mysql but cannot understand the difference in the following ways of partitioning : Key vs Hash vs List vs Range.Can someone explain in pure english? Also we have the following table: How do we partition by forum_id? CREATE TABLE IF NOT EXISTS `posts_content` ( `id` int(11) NOT NULL AUTO_INCREMENT, `post_id` int(11) NOT NULL, `forum_id` int(11) NOT NULL, `content` longtext CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=79850 ; Thanking you

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  • lift `??` construct and maven example

    - by coubeatczech
    Hi, I have browsed lift's MegaProtoUser and encountered this construction: ??("Last Name"). Can anyone explain, what that means? Also, I didn't find a way how to add a custom field into MegaProtoUser. The maven's lift's basic archetype defines another field, but it never shows anywhere. (Version 1.0) Thanks for answering

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  • Good alternative to .net DateTimePicker?

    - by Caleb
    I can't really explain why exactly, but I really hate the .net DateTimePicker control built into C#.net and VB.net. Is anyone aware of a good alternative to either of these controls which is freely available? I'm sure I'm not the only one who doesn't like the control. The date picker in Google Calendar is one which I really like, so I'd love something like that which I can use in a .net app.

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  • What are the benefits of left outer join vs nested aggregate selects to find the newest rows in a table?

    - by RenderIn
    I'm doing: select * from mytable y where y.year = (select max(yi.year) from mytable yi where yi.person = y.person) Is that better or worse from a performance aspect than: select y.* from mytable y left outer join mytable y2 on y.year < y2.year and y.person = y2.person where y2.year is null The explain plan/anecdotal evidence is inconclusive so I am wondering if in general one is better than the other.

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  • Domain policy template won't show any controls

    - by Kingnebula
    I have the following code that i found on the net. The problem is that it adds in nicely with the group policy editor and i can see it's Catogary under administrative controls but it doesn't show any controls for user input. What am i doing wrong here? CLASS USER category EmailStationary POLICY "SetEmailStationary" EXPLAIN "This policy sets the value for stationary" KEYNAME "Software\Microsoft\Office\11.0\Common\MailSettings" PART "What is the new stationary to use" EDITTEXT VALUENAME "NewStationery" END PART END POLICY END category

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  • How to optimize my PostgreSQL DB for prefix search?

    - by asmaier
    I have a table called "nodes" with roughly 1.7 million rows in my PostgreSQL db =#\d nodes Table "public.nodes" Column | Type | Modifiers --------+------------------------+----------- id | integer | not null title | character varying(256) | score | double precision | Indexes: "nodes_pkey" PRIMARY KEY, btree (id) I want to use information from that table for autocompletion of a search field, showing the user a list of the ten titles having the highest score fitting to his input. So I used this query (here searching for all titles starting with "s") =# explain analyze select title,score from nodes where title ilike 's%' order by score desc; QUERY PLAN ----------------------------------------------------------------------------------------------------------------------- Sort (cost=64177.92..64581.38 rows=161385 width=25) (actual time=4930.334..5047.321 rows=161264 loops=1) Sort Key: score Sort Method: external merge Disk: 5712kB -> Seq Scan on nodes (cost=0.00..46630.50 rows=161385 width=25) (actual time=0.611..4464.413 rows=161264 loops=1) Filter: ((title)::text ~~* 's%'::text) Total runtime: 5260.791 ms (6 rows) This was much to slow for using it with autocomplete. With some information from Using PostgreSQL in Web 2.0 Applications I was able to improve that with a special index =# create index title_idx on nodes using btree(lower(title) text_pattern_ops); =# explain analyze select title,score from nodes where lower(title) like lower('s%') order by score desc limit 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------ Limit (cost=18122.41..18122.43 rows=10 width=25) (actual time=1324.703..1324.708 rows=10 loops=1) -> Sort (cost=18122.41..18144.60 rows=8876 width=25) (actual time=1324.700..1324.702 rows=10 loops=1) Sort Key: score Sort Method: top-N heapsort Memory: 17kB -> Bitmap Heap Scan on nodes (cost=243.53..17930.60 rows=8876 width=25) (actual time=96.124..1227.203 rows=161264 loops=1) Filter: (lower((title)::text) ~~ 's%'::text) -> Bitmap Index Scan on title_idx (cost=0.00..241.31 rows=8876 width=0) (actual time=90.059..90.059 rows=161264 loops=1) Index Cond: ((lower((title)::text) ~>=~ 's'::text) AND (lower((title)::text) ~<~ 't'::text)) Total runtime: 1325.085 ms (9 rows) So this gave me a speedup of factor 4. But can this be further improved? What if I want to use '%s%' instead of 's%'? Do I have any chance of getting a decent performance with PostgreSQL in that case, too? Or should I better try a different solution (Lucene?, Sphinx?) for implementing my autocomplete feature?

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  • How can i combine crystal reports and JAVA SWT?

    - by Armin
    I have to create reports from my application (java, swt). For reports i am using crystal reports, but i have problem, i can't find SWT code that enables me to open (create) and save report. I have found Swing code that enables me to do that, but i cant find SWT code. So can somebody explain me, or give me code, or tutorial that will help me to to that. Tnx.

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  • dynamically load PHP code from external file

    - by jera
    code is in a static class in an external file eg. /home/test/public_html/fg2/templatecode/RecordMOD/photoslide.mod how do I load this into my script on demand, and be able to call its functions ? I am a novice at php , so please explain your code. help is appreciated. Jer

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  • Basic concepts in file system implementation

    - by darkie15
    I am a unclear about file system implementation. Specifically (Operating Systems - Tannenbaum (Edition 3), Page 275) states "The first word of each block is used as a pointer to the next one. The rest of block is data". Can anyone please explain to me the hierarchy of the division here? Like, each disk partition contains blocks, blocks contain words, and so on...

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