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  • regular expression to extract @name symbols from tweet

    - by Joey
    Hello All, I would like to use regular expression to extract only @patrick @michelle from the following sentence: @patrick @michelle we having diner @home tonight do you want to join? Note: @home should not be include in the result because, it is not at beginning of the sentence nor is followed by another @name. Any solution, tip, comments will be really appreciated.

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  • SQL Server 2005. Full Text Search. Need Thesaurus working with NEAR/AND/OR keywords

    - by user305924
    Hi, does anyone know if it's possible to do a thesaurus search together with NEAR or AND/OR keywords. Here is an example of the type of query I want to run: SELECT Title, RANK FROM Item INNER JOIN CONTAINSTABLE(Item, Title, 'FORMSOF(Thesaurus, "red" NEAR "wine")') AS KEY_TBL ON Item.ItemID = KEY_TBL.[KEY] ORDER BY RANK DESC ....But I get the error message: Syntax error near 'NEAR' in the full-text search condition 'FORMSOF(Thesaurus, "red" NEAR "wine")'.

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  • What is causing this SQL 2005 Primary Key Deadlock between two real-time bulk upserts?

    - by skimania
    Here's the scenario: I've got a table called MarketDataCurrent (MDC) that has live updating stock prices. I've got one process called 'LiveFeed' which reads prices streaming from the wire, queues up inserts, and uses a 'bulk upload to temp table then insert/update to MDC table.' (BulkUpsert) I've got another process which then reads this data, computes other data, and then saves the results back into the same table, using a similar BulkUpsert stored proc. Thirdly, there are a multitude of users running a C# Gui polling the MDC table and reading updates from it. Now, during the day when the data is changing rapidly, things run pretty smoothly, but then, after market hours, we've recently started seeing an increasing number of Deadlock exceptions coming out of the database, nowadays we see 10-20 a day. The imporant thing to note here is that these happen when the values are NOT changing. Here's all the relevant info: Table Def: CREATE TABLE [dbo].[MarketDataCurrent]( [MDID] [int] NOT NULL, [LastUpdate] [datetime] NOT NULL, [Value] [float] NOT NULL, [Source] [varchar](20) NULL, CONSTRAINT [PK_MarketDataCurrent] PRIMARY KEY CLUSTERED ( [MDID] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] - stackoverflow wont let me post images until my reputation goes up to 10, so i'll add them as soon as you bump me up, hopefully as a result of this question. ![alt text][1] [1]: http://farm5.static.flickr.com/4049/4690759452_6b94ff7b34.jpg I've got a Sql Profiler Trace Running, catching the deadlocks, and here's what all the graphs look like. stackoverflow wont let me post images until my reputation goes up to 10, so i'll add them as soon as you bump me up, hopefully as a result of this question. ![alt text][2] [2]: http://farm5.static.flickr.com/4035/4690125231_78d84c9e15_b.jpg Process 258 is called the following 'BulkUpsert' stored proc, repeatedly, while 73 is calling the next one: ALTER proc [dbo].[MarketDataCurrent_BulkUpload] @updateTime datetime, @source varchar(10) as begin transaction update c with (rowlock) set LastUpdate = getdate(), Value = t.Value, Source = @source from MarketDataCurrent c INNER JOIN #MDTUP t ON c.MDID = t.mdid where c.lastUpdate < @updateTime and c.mdid not in (select mdid from MarketData where LiveFeedTicker is not null and PriceSource like 'LiveFeed.%') and c.value <> t.value insert into MarketDataCurrent with (rowlock) select MDID, getdate(), Value, @source from #MDTUP where mdid not in (select mdid from MarketDataCurrent with (nolock)) and mdid not in (select mdid from MarketData where LiveFeedTicker is not null and PriceSource like 'LiveFeed.%') commit And the other one: ALTER PROCEDURE [dbo].[MarketDataCurrent_LiveFeedUpload] AS begin transaction -- Update existing mdid UPDATE c WITH (ROWLOCK) SET LastUpdate = t.LastUpdate, Value = t.Value, Source = t.Source FROM MarketDataCurrent c INNER JOIN #TEMPTABLE2 t ON c.MDID = t.mdid; -- Insert new MDID INSERT INTO MarketDataCurrent with (ROWLOCK) SELECT * FROM #TEMPTABLE2 WHERE MDID NOT IN (SELECT MDID FROM MarketDataCurrent with (NOLOCK)) -- Clean up the temp table DELETE #TEMPTABLE2 commit To clarify, those Temp Tables are being created by the C# code on the same connection and are populated using the C# SqlBulkCopy class. To me it looks like it's deadlocking on the PK of the table, so I tried removing that PK and switching to a Unique Constraint instead but that increased the number of deadlocks 10-fold. I'm totally lost as to what to do about this situation and am open to just about any suggestion. HELP!!

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  • how to get latest entry from a table for an item and do arithmatic operation on it?

    - by I Like PHP
    i have below tables tbl_rcv_items st_id | item_id |stock_opening_qnty |stock_received_qnty |stock_rcvd_date 14 1 0 70 2010-05-18 15 16 0 100 2010-05-06 16 10 0 59 2010-05-20 17 14 0 34 2010-05-20 20 1 70 5 2010-05-12 tbl_issu_items issue_id refer_issue_id item_id item_qntt item_updated 51 1 1 5 2010-05-18 19:34:29 52 1 16 6 2010-05-18 19:34:29 53 1 10 7 2010-05-18 19:34:29 54 1 14 8 2010-05-18 19:34:29 75 7 1 12 2010-05-18 19:40:52 76 7 16 1 2010-05-18 19:40:52 77 7 10 1 2010-05-18 19:40:52 78 7 14 1 2010-05-18 19:40:52 79 8 1 3 2010-05-19 11:28:50 80 8 16 5 2010-05-19 11:28:50 81 8 10 6 2010-05-19 11:28:50 82 8 14 7 2010-05-19 11:28:51 87 10 1 2 2010-05-19 12:51:03 88 10 16 0 2010-05-19 12:51:03 89 10 10 0 2010-05-19 12:51:03 90 10 14 0 2010-05-19 12:51:03 91 14 1 1 2010-05-19 18:43:58 92 14 14 3 2010-05-19 18:43:58 tbl_item_detail item_id item_name 1 shirt 2 belt 10 ball pen 14 vim powder 16 pant NOW if i want total available quantity for each item till today using both table total available quantity for an item =stock_opening_qnty+stock_received_qnty(LATEST ENTRY FROM (tbl_rcv_item) for that item id according to stock_rcvd_date) - SUM(item_qntt) for eg: if i want to know the available quantity for item_id=1 till today(25-05-2010) then it shoud be 70+5(latest entry for item_id till 25/5/2010)-23( issued till 25/5/2010)=52 i write below query , SELECT tri.item_id, tid.item_name, (tri.stock_opening_qnty + tri.stock_received_qnty) AS totalRcvQntt, SUM( tii.item_qntt ) AS totalIsudQntt FROM tbl_rcv_items tri JOIN tbl_issu_items tii ON tii.item_id = tri.item_id JOIN tbl_item_detail tid ON tid.item_id=tri.item_id WHERE tri.stock_rcvd_date <= CURDATE() GROUP BY (tri.item_id) which results Array ( [0] => Array ( [item_id] => 1 [item_name] => shirt [totalRcvQntt] => 70 [totalIsudQntt] => 46 ) [1] => Array ( [item_id] => 10 [item_name] => ball pen [totalRcvQntt] => 59 [totalIsudQntt] => 16 ) [2] => Array ( [item_id] => 14 [item_name] => vim powder [totalRcvQntt] => 34 [totalIsudQntt] => 20 ) [3] => Array ( [item_id] => 16 [item_name] => pant [totalRcvQntt] => 100 [totalIsudQntt] => 17 ) ) in above result total isuse quantity for shirt(item_id=1) shoube be 23 whereas results reflects 46 bcoz there are two row regrading item_id=1 in tbl_rcv_items, i only need the latest one(means which stock_rcvd_date is less than tommorow) please tell me where i doing mistake?? or rewrite the best query. thanks a lot!

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  • Datagridview error

    - by Simon
    I have two datagridviews. So for the second one, i just copy-pasted the code from the first and changed where the difference was. But i get an error at the secod data grid when i want to view the result of my sql code. Translated in english the error show something like that there was no value given to at least one required parameter. Please help! private void button1_Click(object sender, EventArgs e) { string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=save.mdb"; try { database = new OleDbConnection(connectionString); database.Open(); date = DateTime.Now.ToShortDateString(); string queryString = "SELECT zivila.naziv,(obroki_save.skupaj_kalorij/zivila.kalorij)*100 as Kolicina_v_gramih " + "FROM (users LEFT JOIN obroki_save ON obroki_save.ID_uporabnika=users.ID)" + " LEFT JOIN zivila ON zivila.ID=obroki_save.ID_zivila " + " WHERE users.ID= " + a.ToString(); loadDataGrid(queryString); } catch (Exception ex) { MessageBox.Show(ex.Message); return; } } public void loadDataGrid(string sqlQueryString) { OleDbCommand SQLQuery = new OleDbCommand(); DataTable data = null; dataGridView1.DataSource = null; SQLQuery.Connection = null; OleDbDataAdapter dataAdapter = null; dataGridView1.Columns.Clear(); // <-- clear columns SQLQuery.CommandText = sqlQueryString; SQLQuery.Connection = database; data = new DataTable(); dataAdapter = new OleDbDataAdapter(SQLQuery); dataAdapter.Fill(data); dataGridView1.DataSource = data; dataGridView1.AllowUserToAddRows = false; dataGridView1.ReadOnly = true; dataGridView1.Columns[0].Visible = true; } private void Form8_Load(object sender, EventArgs e) { } private void button2_Click(object sender, EventArgs e) { string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=save.mdb"; try { database = new OleDbConnection(connectionString); database.Open(); date = DateTime.Now.ToShortDateString(); string queryString = "SELECT skupaj_kalorij " + "FROM obroki_save " + " WHERE users.ID= " + a.ToString(); loadDataGrid2(queryString); } catch (Exception ex) { MessageBox.Show(ex.Message); return; } } public void loadDataGrid2(string sqlQueryString) { OleDbCommand SQLQuery = new OleDbCommand(); DataTable data = null; dataGridView2.DataSource = null; SQLQuery.Connection = null; OleDbDataAdapter dataAdapter = null; dataGridView2.Columns.Clear(); // <-- clear columns SQLQuery.CommandText = sqlQueryString; SQLQuery.Connection = database; data = new DataTable(); dataAdapter = new OleDbDataAdapter(SQLQuery); dataAdapter.Fill(data); dataGridView2.DataSource = data; dataGridView2.AllowUserToAddRows = false; dataGridView2.ReadOnly = true; dataGridView2.Columns[0].Visible = true; }

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  • Python Script to backup a directory

    - by rgolwalkar
    Filename:backup_ver1 import os import time 1 Using list to specify the files and directory to be backed up source = r'C:\Documents and Settings\rgolwalkar\Desktop\Desktop\Dr Py\Final_Py' 2 define backup directory destination = r'C:\Documents and Settings\rgolwalkar\Desktop\Desktop\PyDevResourse' 3 Setting the backup name targetBackup = destination + time.strftime('%Y%m%d%H%M%S') + '.rar' rar_command = "rar.exe a -ag '%s' %s" % (targetBackup, ''.join(source)) i am sure i am doing something wrong here - rar command please let me know if os.system(rar_command) == 0: print 'Successful backup to', targetBackup else: print 'Backup FAILED' O/P:- Backup FAILED winrar is added to Path and CLASSPATH under Environment variables as well - anyone else with a suggestion for backing up the directory is most welcome

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  • How do you encrypt parts of a file separately using pgp?

    - by Collin Anderson
    I would like to encrypt credit card numbers on a web server as they come in using PGP. I would then like to be able to export all of the credit card numbers and other information in one file that can be easily decrypted using standard PGP software. Is it possible to take the encrypted credit card numbers and join them with other encrypted data and be able to decrypt the entire file? Basically is this true? D(E(x) + E(y)) = x + y Where '+' means string concatenation.

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  • app engine jpa N-way joins ?

    - by cometta
    may i know is the latest version of jgae support N-way joins? or still limit to 2-way join? reference: http://gae-java-persistence.blogspot.com/2010/03/executing-simple-joins-across-owned.html?showComment=1276491851890_AIe9_BEqp-CCn0bibiOUY8JUbbSFwFE02aF9d68baX0squIcfBnve8K3iIT3IEhPhpJxEBSZQLlz8tH-NMq1XGzOV0fAA8othN4f3zhR2B6xN0WzsTRpyEZJl2vPDonhVY38iUhJGe8Ot9URs3IjYk4HoH9LG41az7l0blTBNNnpJuyI-xl5CDJGoPLGk5jw4tLvtvsCYhq3n7XuiZwJIaBMWjHSDdy7-fB1NYszI0G4f9JRjZ5UdDM4at3o3tAhd-CYK2Af1dnG#c3679507832415682306

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  • bundler/capistrano is not installing gems with correct ruby version

    - by Douglas
    I'm trying to deploy my first app on a server with Capistrano, and I'm a bit lost with managing gemsets and ruby version. These are my (server and workstation) versions : Rails 3.2.8 RVM 1.16.17 Gem 1.8.24 Bundler 1.2.1 pg gem 0.14.1 My gemset are : Gemsets for ruby-1.9.3-p194 (found in /usr/local/rvm/gems/ruby-1.9.3-p194) (default) global = rail3dev20120606 I set the default gemset with : rvm use 1.9.3-p194@rail3dev20120606 --default --passenger When I run a : cap bundle:install The task end with success, but when I do a : gem list There are many missing gems though they are present in my Gemfile. When I go to check my gems in /var/www/opf/shared/bundle/ruby/ I find a folder called 1.9.1 and in /var/www/opf/shared/bundle/ruby/1.9.1/gems/ I can fond all of my needed gems (specified in Gemfile). I'm sure there is a problem with ruby version, but how do I solve this ? At the moment, if I do any rake command, I got a ruby crash [Bug] Segmentation fault, as it try to access the db and using postgresql_adapter. I think as many gems are missing there must have some gem dependencies not verified, and maybe a gem is using an incompatible ruby version 1.9.1 though it expect a 1.9.3. I think the issue is around managing ruby versions and gems. I'm certainly doing some mix with gemset and my capistrano deployement. I'm missing experience and info. Could anybody advise me how to handle this on the server ? What are the best practices ? How am I suppose to update my ruby version ? with Capistrano deploy.rb ? manually ? with/without rvm ? I saw a new version of ruby 1.9.3-p327 has just released. Should I use gemset or not ? What about the :rvm_ruby_string in my deploy.rb. Is it correctly spelled or should I remove the p194 part ? Should I Remove the :rvm_ruby_string ? Keep it ? Use a .rvmrc file ??? I'm really lost and some kind help would be welcome. This is my config/deploy.rb in any case : require 'bundler/capistrano' require File.join(File.dirname(__FILE__), 'deploy') + '/capistrano_database' set :rvm_type, :system set :rvm_ruby_string, 'ruby-1.9.3-p194@rail3dev20120606' require 'rvm/capistrano' set :application, 'opf' set :deploy_to, '/var/www/opf' set :rails_env, 'production' set :user, 'the_user' set :use_sudo, false set :group_writable, false set :scm, :git set :repository, '[email protected]:user/opf.git' set :branch, 'master' default_run_options[:pty] = true set :deploy_via, :remote_cache server '192.168.5.200', :web, :app, :db, :primary => true # If you are using Passenger mod_rails uncomment this: namespace :deploy do task :start do ; end task :stop do ; end task :restart, :roles => :app, :except => { :no_release => true } do run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}" end end Thanks for any help

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  • Can't concatenate 2 arrays in PHP

    - by alex
    I've recently learned how to join 2 arrays using the + operator in PHP. But consider this code... $array = array('Item 1'); $array += array('Item 2'); var_dump($array); Output is array(1) { [0]= string(6) "Item 1" } Why does this not work? Skipping the shorthand and using $array = $array + array('Item 2') does not work either. Does it have something to do with the keys?

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  • Is derived table executed once or three times?

    - by AspOnMyNet
    Every time you make use of a derived table, that query is going to be executed. When using a CTE, that result set is pulled back once and only once within a single query. Does the quote suggest that the following query will cause derived table to be executed three times ( once for each aggregate function’s call ): SELECT AVG(OrdersPlaced),MAX(OrdersPlaced),MIN(OrdersPlaced) FROM ( SELECT v.VendorID, v.[Name] AS VendorName, COUNT(*) AS OrdersPlaced FROM Purchasing.PurchaseOrderHeader AS poh INNER JOIN Purchasing.Vendor AS v ON poh.VendorID = v.VendorID GROUP BY v.VendorID, v.[Name] ) AS x thanx

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  • linq multiple condition on "on" clause

    - by swapna
    I have a query which have multiple conditions on on clause select * FROM CATALOGITEM with (nolock) INNER JOIN CATALOG with (nolock) ON CATALOGITEM.catalog_id = CATALOG.catalog_id and not(catalog.catalog_id = 21) and not(catalog.catalog_id = 20) WHERE ( CATALOGITEM.publish_code = 'upd' OR CATALOG_ITEM.publish_code = 'ins' OR PRODUCT.publish_code = 'upd' OR PRODUCT.publish_code = 'ins' ) How to write this in linq. Please advice.

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  • SQL Code Smells

    - by Lijo
    Hi Team, Could you please list some of the bad practices in SQL, that novice people do? I have found the use of "WHILE loop" in scenarios which could be resolved using set operations. Another example is inserting data only if it does not exist. This can be achieved using LEFT OUTER JOIN. Some people go for "IF" Any other thoughts? Thanks Lijo

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  • How ton put give alias name inside a Query string.?

    - by Vibin Jith
    Please look that alias name. I hope to set the value into a string var. How to put single coats inside a string which is in single coats. SET @SQLString = N'SELECT purDetQty as 'detQty',stkBatchCode as 'batchCode',purDetProductId as 'productId' INTO #ProductTable FROM PurchaseDetail INNER JOIN Stock on stkId=purDetStockId WHERE purDetID=@detId'

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  • return 0 with sql query instead of nothing

    - by user1202606
    How do I return a 0 with as Responses with the PossibleAnswerText if count is 0? Right now it won't return anything. select COUNT(sr.Id) AS 'Responses', qpa.PossibleAnswerText from CaresPlusParticipantSurvey.QuestionPossibleAnswer as qpa join CaresPlusParticipantSurvey.SurveyResponse as sr on sr.QuestionPossibleAnswerId = qpa.Id where sr.QuestionPossibleAnswerId = 116 GROUP BY qpa.PossibleAnswerText

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  • What are the DB smells?

    - by Jonas Byström
    We all know 'code smells', but what are the fundamental 'database smells'? I'm a DB n00b, but I'll give an example of something that I find fishy. It seems to me like when I have to join 6-8 tables together to optimize our loading that we have a DB smell? Or would that be a pretty 'normal' database layout? (Sure, early optimization is the root of all evil, but this seems to me like early pessimisation, not to mention the cumbersomeness?)

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  • Whats for to use GO

    - by Incognito
    I am interested in new language from Google, GO. I have checked the materials in the golang.com. And now want to use GO in practice. Please share any ideas whats for you are using GO. Or are there any open source GO projects that it would be possible to join?

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  • Rewrite SQL Fulltext Function to return Table only

    - by Alex
    I have a MS SQL Fulltext Function like this: (...) RETURNS TABLE AS RETURN SELECT * FROM fishes INNER JOIN CONTAINSTABLE(fishes, *, @keywords, @limit) AS KEY_TBL ON fishes.id = KEY_TBL.[KEY] When I use this function in LINQ, it generates a special return type which includes all fields of my "fishes" table, plus Key and Rank. How could I rewrite above query, or change something in LINQ, to omit Key and Rank and just return my "fishes" results (and to have the fulltext search result objects be of type Fish, which is what I really care about, so I don't have to cast)?

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  • jQuery: Setting 'style' attribute of element with object

    - by JamesBrownIsDead
    I saw this in our codebase the other day: link.attr('style', map({ color: '#9a4d9e', cursor: 'default' })); map is defined as: function map(map) { var cssValue = []; for (var o in map) { cssValue.push(o + ':' + map[o] + ';') } return cssValue.join(';'); } Is map necessarily? Is there a shorter way to do this? It's important to note that the "style" attribute overrides any styles set by a class added/defined in the "class" attribute.

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  • MYSQL get the name from another table that is associated with the first table

    - by Juan Gonzales
    I can't figure out why this statement is not working SELECT myChurches.id AS id, myChurches.church_name AS church_name FROM myChurches INNER JOIN church_staff ON church_staff.church_id=myChurches.id WHERE church_staff.mem_id='$logOptions_id' ORDER BY myChurches.church_name ASC Basically I need to find the person's that are staff members of a church from one table and want to get the 'name' of that church FROM the 'myChurches' table. Hopefully that makes sense. Thanks in advance

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  • How do i program a simple IRC bot in python?

    - by Jake
    Hi every one. I need help writing a basic IRC bot that just connects to a channel.. is anyone able to explain me this? I have managed to get it to connect to the IRC server but i am unable to join a channel and log on. The code i have thus far is: import sockethost = 'irc.freenode.org' port = 6667 join_sock = socket.socket() join_sock.connect((host, port)) <code here> Any help would be greatly appreciated.

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  • Where is asset_host rails 3?

    - by tig
    What happened to asset_host in rails 3? Earlier I can put following code into development.rb and get all assets not present on development: ActionController::Base.asset_host = proc do |source, request| unless File.exist?(File.join(RAILS_ROOT, 'public', source.sub(/\?\d+$/, ''))) 'http://example.com' end end But in rails 3 there is no such method and google does not help me.

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  • Retrieving multipel rows in MS SQL but distinct filteringen only on one

    - by Nicklas
    I have this: SELECT Product.ProductID, Product.Name, Product.GroupID, Product.GradeID, AVG(tblReview.Grade) AS Grade FROM Product left Join tblReview ON Product.GroupID = tblReview.GroupID WHERE (Product.CategoryID = @CategoryID) GROUP BY Product.ProductID, Product.Name, Product.GroupID, Product.GradeID I would like to return only the rows where Product.Name is unique. If I make a SELECT DISTINCT the ProductID is diffrent on every row so all the rows are unique. Thanks in andvance

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