Search Results

Search found 45150 results on 1806 pages for 'oracle technology database'.

Page 389/1806 | < Previous Page | 385 386 387 388 389 390 391 392 393 394 395 396  | Next Page >

• ?????? ??????????! ?Bronze???? vol.5

  - by M.Morozumi

  ??????????????????????????????????????????????????????????????????? ???ORACLE MASTER Bronze Oracle Database 11g??????????????????????? ------------------------------- ????: ???????????????? results ??????????????????(??)????? exam_score ????????100?80?60?Null ??4??????????????? ?? SEELECT ????????????????????1????????? SELECT AVG(exam_score) FROM results; a. 80 b. 60 c. NULL d. ????????????? ???????????????

  Read the article

• ???11gR2??????~2011?1??????????(????)

  - by Yusuke.Yamamoto

  2011?1???????????(????)?????????????????? ???????????Oracle Database 10g Release 2(10gR2)? Microsoft Windows Server 2008 R2 ?? Windows 7 ????????? ????????????????????? Oracle Database 11gR2 ????????????????? 11gR2 ?????????????????????????????????????3????????????? ???????/??????! Oracle Database 11g R2 ??????? ?????????????SQL*Plus ???????????? ??????????????????????????????Tips?×4??????? SQL*Plus|??????????? ?? ???? ???? ??? ??? Oracle 10gR2?Windows 2008R2/Windows 7??????? ??? SQL Developer SQL Developer????~??!????????SQL???? ??? ????? Oracle ASM?1???? - ????????????·?????·?? ??? ??????? SQL*Loader???? ??? ?????? Oracle???????·??????(????)??(2010?10?) ??? ?????? Oracle???? ??~????????DBA1.0/2.0(2011?1?) New! ??? ??? Oracle Database ??OS/?????????????? ??? ??????? LIKE??(?????????)??????????~Oracle Text????? ??? 11gR2 ?Oracle DB 11gR2 ?????????????????????????????????????! New! ??? ??????? SQL*Plus??? - SQL??????????????????(????????Tips-3) New!

  Read the article

• ?????? ??????????! ?Gold???? vol.5 <??>

  - by M.Morozumi

  ???ORACLE MASTER Gold Oracle Database 11g?????????????? ?????????????????????? ------------------------------- FLASHBACK ( ) ??????????Point-in-Time ???????????? DROP TABLE ?????????????????( ) ????????????????1????????? a. DATABASE b. TABLE c. COLUMN d. ????????????? ??????????????? ------------------------------- ??:b. TABLE ??: FLASHBACK TABLE ???????????Point-in-Time ???????????? DROP TABLE ?????????????????FLASHBACK COLUMN ??????????????

  Read the article

• ?????? ??????????! ?Bronze???? vol.6

  - by M.Morozumi

  ??????????????????????????????????????????????????????????????????? ???ORACLE MASTER Bronze Oracle Database 11g??????????????????????? ------------------------------- ????: ?????????????????? EMPLOYEES ????????????????(???)????? last_name ????????Haan ???1??????????????? ?? SEELECT ????????????????????1???????? SELECT INSTR(last_name, 'a') FROM employees; a. 2 b. 2,3 c. NULL d. ????????????? ???????????????

  Read the article

• “????Java”???!?JavaOne Tokyo 2012?

  - by hideki ito

  2012?4?4??5??2????????????????49???JavaOne Tokyo 2012??????????7???4??????????????2011???????????Moving Java Forward?????“????Java”???????Java????????????????????2?????????(4?4????????) 2??????????????! ?????2????JavaOne Technical Keynote????????????????????????·?????????????????????Java??????????????????????? ??????????????????Java Rap?(!?) ??????????????·???????? Java???????????????????????·????Alex Buckley?Project Coin???????? ???????·???????? Java???·??????·???????Richard Bair?JavaFX???????????????Oracle Corporation ????·???????? Java EE?????????Java???????Mike Keith?Java EE???????????????????????????????? ????&??????????·??????????Terrence Barr??Java ME?Java Embedded??????????????????????? 2??????????????????????????????????????????? ????????49??????????????????????????????????????Java?????????????????????????? ??????????????????????????????????????????????????????? ?????????Duke??????????????????????????????????…? 7????????????JavaOne Tokyo 2012??????????Java???????????????????????2?????????2012?9?30???10?4????????????????JavaOne 2012????????????????Java????????????????????????????????????????????????! JavaOne 2012 San Francisco http://www.oracle.com/javaone/index.html

  Read the article

• ???????/?????????????????????????????????

  - by Yusuke.Yamamoto

  ????? ??:2011/05/11 ??:??????/?? ????????????????????????????????????????????????????????????????????????????????????????????????????????????Oracle Advanced Security ????????????? Oracle Data Masking ????????????????????????????? Oracle Data Masking ????????????Oracle Advance Security ?????? ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/Masking05111500.wmv http://www.oracle.com/technetwork/jp/ondemand/db-technique/0511-1500-encry-masking-400262-ja.pdf

  Read the article

• ?Pick-Up??????????? JVM ?JRockit????????·??????|WebLogic Channel|??????

  - by ???02

  ??Oracle JRockit JVM?????????????????????·?????????????????????????JVM??????? ???????????????????????????????????????????????????????????????????????? ??????? ?????????Oracle JRockit???????·??????????????????????????????????????????????????????????? Oracle JRockit JDK???????????????????????????????????????????????????????????????????? JVM?????????????????????????????????????????????????????????????JVM????? ??????????Oracle JRockit ???????·??????·?????????JVM??????????????????????????????????????????????????????????¦JRockit JVM???????????????·????????????????????????????????????????????????????????????????????????????2?????????????????????????????????????????????? ¦?Java?????????????????????????JRockit JVM???????????????????????????????????????????????????????????????????????3??Oracle JRockit JVM??????????????JRockit JVM????????????????????Oracle????????????JVM???????????·???????????????? ¦???????????????????????????????·?????????????????????????????????????????????4???????????????????????JRockit JVM?????????????????????????????????????????????? ¦Java????????????????????????????????????5?????????????????????????????????????????????JRockit JVM??????????????? ¦ ????·???????????????????????????????????????????????????????????????????????????6?????????????????????????????????????????????????????????????????????????? ¦ ????·?????????????CPU???????????????????·???????????????????????????????????????????????????????????????????????????????7?????????????????????????????????????·?????????????????????Java?????????????????????????JRockit JVM???????????????? ¦JVM?????????????????????????????????????JVM??????????????????????8????????????????????????????????????????????????????????? ¦ ????·????????????????9??????????????????????????????????????????????????????????????????JVM??????????? ¦ ????????????????JVM??????????????10??JVM????????????????????????????????????? >>?????

  Read the article

• ?????? ??????????! ?Bronze???? vol.11 <??>

  - by M.Morozumi

  ------------------------------- ????: REPLACE ?????????JACK and JUE?????????J???BL??????????????BLACK and BLUE??????????????????? REPLACE ?????????????????1????????? ???: REPLACE('JACK and JUE', 'BL', 'J') REPLACE('JACK and JUE', 'J', 'BL') ????????????? ??????????????? ------------------------------- ?? 2. REPLACE('JACK and JUE', 'J', 'BL') ?? REPLACE ??? 2 ??????????????????? 3 ????????????????? ??????? Oracle Database 11g: ?? ????·???? Oracle Database 11g: ????????? I

  Read the article

• I do I iterate the records in a database using LINQ when I have already built the LINQ DB code?

  - by Seth Spearman

  I asked on SO a few days ago what was the simplest quickest way to build a wrapper around a recently completed database. I took the advice and used sqlmetal to build linq classes around my database design. Now I am having two problems. One, I don't know LINQ. And, two, I have been shocked to realize how hard it is to learn. I have a book on LINQ (Linq In Action by Manning) and it has helped some but at the end of the day it is going to take me a couple of weeks to get traction and I need to make some progress on my project today. So, I am looking for some help getting started. Click HERE To see my simple database schema. Click HERE to see the vb class that was generated for the schema. My needs are simple. I have a console app. The main table is the SupplyModel table. Most of the other tables are child tables of the SupplyModel table. I want to iterate through each of Supply Model records. I want to grab the data for a supply model and then DoStuff with the data. And I also need to iterate through the child records, for each supply model, for example the NumberedInventories and DoStuff with that as well. I want to only iterate the SupplyModels that are have IDs that are in an array of strings containing the IDs. I need help doing this in VB rather than C# if possible. Thanks for your help. Seth

  Read the article

• Application connection with database persist after sucessfull transaction also.

  - by anupam3m

  Hi , I am using Spring.Data.NHibernate12 on my database level.my application connection with database is not getting released. Underneath given is Dataconfiguration.xml < ?xml version="1.0" encoding="utf-8" ? < objects xmlns="http://www.springframework.net" xmlns:db="http://www.springframework.net/database" < object id="AuditLogger" type="Risco.Rsp.Ac.Audit.AuditLogger, Risco.Rsp.Ac.Audit" singleton="false" < property name="CacheSettings" ref="CacheSettings"/ < /object < object id="CacheSettings" type="Risco.Rsp.Ac.AMAC.CacheMgmt.Utilities.UpdateEntityCacheHelper, Risco.Rsp.Ac.AMAC.CacheMgmt.Utilities" singleton="false"/ < object type="Spring.Objects.Factory.Config.PropertyPlaceholderConfigurer, Spring.Core" < <property name="ConfigSections" value="databaseSettings"/> < < db:provider id="AMACDbProvider" provider="OracleClient-2.0" connectionString="Data Source=RISCODEVDB;User ID=amsbvt; Password=amsuser1234;"/ Risco.Rsp.Ac.AMAC.Mapping Risco.Rsp.Ac.Logging.Appenders Risco.Rsp.Ac.AMAC.CacheMappings --

  Read the article

• How to store a list in a column of a database table.

  - by John Berryman

  Howdy! So, per Mehrdad's answer to a related question, I get it that a "proper" database table column doesn't store a list. Rather, you should create another table that effectively holds the elements of said list and then link to it directly or through a junction table. However, the type of list I want to create will be composed of unique items (unlike the linked question's fruit example). Furthermore, the items in my list are explicitly sorted - which means that if I stored the elements in another table, I'd have to sort them every time I accessed them. Finally, the list is basically atomic in that any time I wish to access the list, I will want to access the entire list rather than just a piece of it - so it seems silly to have to issue a database query to gather together pieces of the list. AKX's solution (linked above) is to serialize the list and store it in a binary column. But this also seems inconvenient because it means that I have to worry about serialization and deserialization. Is there any better solution? If there is no better solution, then why? It seems that this problem should come up from time to time. ... just a little more info to let you know where I'm coming from. As soon as I had just begun understanding SQL and databases in general, I was turned on to LINQ to SQL, and so now I'm a little spoiled because I expect to deal with my programming object model without having to think about how the objects are queried or stored in the database. Thanks All! John

  Read the article

• How can I manage a FIFO-queue in an database with SQL?

  - by Jonas

  I have two tables in my database, one for In and one for Out. They have two columns, Quantity and Price. How can I write a SQL-query that selects the correct price? In example: If I have 3 items in for 75 and then 3 items in for 80. Then I have two out for 75, and the third out should be for 75 (X) and the fourth out should be for 80 (Y). How can I write the price query for X and Y? They should use the price from the third and forth row. In example, is there any way to SELECT the third row in the In-table? I can not use auto_increment as identifier for i.e. "third" row, because the tables will contain post for other items too. The rows will not be deleted, they will be saved for accountability reasons. SELECT Price FROM In WHERE ...? NEW database design: +----+ | In | +----+------+-------+ | Supply_ID | Price | +-----------+-------+ | 1 | 75 | | 1 | 75 | | 1 | 75 | | 2 | 80 | | 2 | 80 | +-----------+-------+ +-----+ | Out | +-----+-------+-------+ | Delivery_ID | Price | +-------------+-------+ | 1 | 75 | | 1 | 75 | | 2 | X | <- ? | 3 | Y | <- ? +-------------+-------+ OLD database design: +----+ | In | +----+------+----------+-------+ | Supply_ID | Quantity | Price | +-----------+----------+-------+ | 1 | 3 | 75 | | 2 | 3 | 80 | +-----------+----------+-------+ +-----+ | Out | +-----+-------+----------+-------+ | Delivery_ID | Quantity | Price | +-------------+----------+-------+ | 1 | 2 | 75 | | 2 | 1 | X | <- ? | 3 | 1 | Y | <- ? +-------------+----------+-------+

  Read the article

• How can manage a FIFO-queue in an database with SQL?

  - by Jonas

  I have two tables in my database, one for In and one for Out. They have two columns, Quantity and Price. How can I write a SQL-query that selects the correct price? In example: If I have 3 items in for 75 and then 3 items in for 80. Then I have two out for 75, and the third out should be for 75 (X) and the fourth out should be for 80 (Y). How can I write the price query for X and Y? They should use the price from the third and forth row. In example, is there any way to SELECT the third row in the In-table? I can not use auto_increment as identifier for i.e. "third" row, because the tables will contain post for other items too. The rows will not be deleted, they will be saved for accountability reasons. SELECT Price FROM In WHERE ...? NEW database design: +----+ | In | +----+------+-------+ | Supply_ID | Price | +-----------+-------+ | 1 | 75 | | 1 | 75 | | 1 | 75 | | 2 | 80 | | 2 | 80 | +-----------+-------+ +-----+ | Out | +-----+-------+-------+ | Delivery_ID | Price | +-------------+-------+ | 1 | 75 | | 1 | 75 | | 2 | X | <- ? | 3 | Y | <- ? +-------------+-------+ OLD database design: +----+ | In | +----+------+----------+-------+ | Supply_ID | Quantity | Price | +-----------+----------+-------+ | 1 | 3 | 75 | | 2 | 3 | 80 | +-----------+----------+-------+ +-----+ | Out | +-----+-------+----------+-------+ | Delivery_ID | Quantity | Price | +-------------+----------+-------+ | 1 | 2 | 75 | | 2 | 1 | X | <- ? | 3 | 1 | Y | <- ? +-------------+----------+-------+

  Read the article

• At what point is it worth using a database?

  - by radix07

  I have a question relating to databases and at what point is worth diving into one. I am primarily an embedded engineer, but I am writing an application using QT to interface with our controller. We are at an odd point where we have enough data that it would be feasible to implement a database (around 700+ items and growing) to manage everything, but I am not sure it is worth the time right now to deal with. I have no problems implementing the GUI with files generated from excel and parsed in, but it gets tedious and hard to track even with VBA scripts. I have been playing around with converting our data into something more manageable for the application side with Microsoft Access and that seems to be working well. If that works out I am only a step (or several) away from using an SQL database and using the QT library to access and modify it. I don't have much experience managing data at this level and am curious what may be the best way to approach this. So what are some of the real benefits of using a database if any in this case? I realize much of this can be very application specific, but some general ideas and suggestions on how to straddle the embedded/application programming line would be helpful. Thanks

  Read the article

• In Python, how to make sure database connection will always close before leaving a code block?

  - by Cawas

  I want to prevent database connection being open as much as possible, because this code will run on an intensive used server and people here already told me database connections should always be closed as soon as possible. def do_something_that_needs_database (): dbConnection = MySQLdb.connect(host=args['database_host'], user=args['database_user'], passwd=args['database_pass'], db=args['database_tabl'], cursorclass=MySQLdb.cursors.DictCursor) dbCursor = dbConnection.cursor() dbCursor.execute('SELECT COUNT(*) total FROM table') row = dbCursor.fetchone() if row['total'] == 0: print 'error: table have no records' dbCursor.execute('UPDATE table SET field="%s"', whatever_value) return None print 'table is ok' dbCursor.execute('UPDATE table SET field="%s"', another_value) # a lot more of workflow done here dbConnection.close() # even more stuff would come below I believe that leaves a database connection open when there is no row on the table, tho I'm still really not sure how it works. Anyway, maybe that is bad design in the sense that I could open and close a DB connection after each small block of execute. And sure, I could just add a close right before the return in that case... But how could I always properly close the DB without having to worry if I have that return, or a raise, or continue, or whatever in the middle? I'm thinking in something like a code block, similar to using try, like in the following suggestion, which obviously doesn't work: def do_something_that_needs_database (): dbConnection = MySQLdb.connect(host=args['database_host'], user=args['database_user'], passwd=args['database_pass'], db=args['database_tabl'], cursorclass=MySQLdb.cursors.DictCursor) try: dbCursor = dbConnection.cursor() dbCursor.execute('SELECT COUNT(*) total FROM table') row = dbCursor.fetchone() if row['total'] == 0: print 'error: table have no records' dbCursor.execute('UPDATE table SET field="%s"', whatever_value) return None print 'table is ok' dbCursor.execute('UPDATE table SET field="%s"', another_value) # again, that same lot of line codes done here except ExitingCodeBlock: closeDb(dbConnection) # still, that "even more stuff" from before would come below I don't think there is anything similar to ExitingCodeBlock for an exception, tho I know there is the try else, but I hope Python already have a similar feature... Or maybe someone can suggest me a paradigm move and tell me this is awful and highly advise me to never do that. Maybe this is just something to not worry about and let MySQLdb handle it, or is it?

  Read the article

• Web services or shared database for (game) server communication?

  - by jaaronfarr

  We have 2 server clusters: the first is made up of typical web applications backed by SQL databases. The second are highly optimized multiplayer game servers which keep all data in memory. Both clusters communicate with clients via HTTP (Ajax with JSON). There are a few cases in which we need to share data between the two server types, for example, reporting back and storing the results of a game (should ultimately end up in the database). We're considering several approaches for inter-server communication: Just share the MySQL databases between clusters (introduce SQL to the game servers) Sharing data in a distributed key-value store like Memcache, Redis, etc. Use an RPC technology like Google ProtoBufs or Apache Thrift Using RESTful web services (the game server would POST back to the web servers, for example) At the moment, we're leaning towards web services or just sharing the database. Sharing the database seems easy, but we're concerned this adds extra memory and a new dependency into the game servers. Web services provide good separation of concerns and fit with the existing Ajax we use, but add complexity, overhead and many more ways for communication to fail. Are there any other good reasons not to use one or the other approach? Which would be easier to scale?

  Read the article

• What's the best way to access a MS Access database using PHP?

  - by Jack Roscoe

  Hi, I need to access some data from an MS Access database and retrieve some data from it using PHP. I've looked around the web, and found the following line which seems to correctly connect to the database: $conn->Open("DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=C:\wamp\www\data\MYDB.mdb"); However, I have tried to retrieve some data in the following way: $query = "SELECT pageid FROM pages_table"; $result = mysqli_query($conn, $query); $amount_of_pages = 0; if(mysqli_num_rows($result) <= 0) echo "No results found."; else while($row = mysqli_fetch_array($result, MYSQL_ASSOC)) $amount_of_pages++; And was presented with the following errors: Warning: mysqli_query() expects parameter 1 to be mysqli, object given in C:\wamp\www\data\index.php on line 19 Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in C:\wamp\www\data\index.php on line 23 No results found. I don't really understand the connection to the Access database, is there something I should be doing differently? Thanks in advance for any help.

  Read the article

• Best way to run multiple queries per second on database, performance wise?

  - by Michael Joell

  I am currently using Java to insert and update data multiple times per second. Never having used databases with Java, I am not sure what is required, and how to get the best performance. I currently have a method for each type of query I need to do (for example, update a row in a database). I also have a method to create the database connection. Below is my simplified code. public static void addOneForUserInChannel(String channel, String username) throws SQLException { Connection dbConnection = null; PreparedStatement ps = null; String updateSQL = "UPDATE " + channel + "_count SET messages = messages + 1 WHERE username = ?"; try { dbConnection = getDBConnection(); ps = dbConnection.prepareStatement(updateSQL); ps.setString(1, username); ps.executeUpdate(); } catch(SQLException e) { System.out.println(e.getMessage()); } finally { if(ps != null) { ps.close(); } if(dbConnection != null) { dbConnection.close(); } } } And my DB connection private static Connection getDBConnection() { Connection dbConnection = null; try { Class.forName(DB_DRIVER); } catch (ClassNotFoundException e) { System.out.println(e.getMessage()); } try { dbConnection = DriverManager.getConnection(DB_CONNECTION, DB_USER,DB_PASSWORD); return dbConnection; } catch (SQLException e) { System.out.println(e.getMessage()); } return dbConnection; } This seems to be working fine for now, with about 1-2 queries per second, but I am worried that once I expand and it is running many more, I might have some issues. My questions: Is there a way to have a persistent database connection throughout the entire run time of the process? If so, should I do this? Are there any other optimizations that I should do to help with performance? Thanks

  Read the article

• Informix "Database locale information mismatch"

  - by lmmortal

  I have informix 11.5 running in my Win-2003 box and few databases running in it. System databases have locale en_us.819 My custom databases have locale en_us.57372 (UTF8). There is also application deployed to JBoss 4.0.2 which has few datasources configured for those custom databases. <local-tx-datasource> <jndi-name>InformixDS</jndi-name> <connection-url>jdbc:informix-sqli://@database.server@:@database.port@/tcs_catalog:[email protected]@</connection-url> <driver-class>com.informix.jdbc.IfxDriver</driver-class> <user-name>@database.username@</user-name> <password>@database.password@</password> <new-connection-sql>set lock mode to wait 5</new-connection-sql> <check-valid-connection-sql>select '1' from dual</check-valid-connection-sql> <metadata> <type-mapping>InformixDB</type-mapping> </metadata> I'm logged in as Administrator and when I start JBoss the following error is shown Caused by: java.sql.SQLException: Database locale information mismatch. at com.informix.util.IfxErrMsg.getSQLException(IfxErrMsg.java:373) at com.informix.jdbc.IfxSqli.a(IfxSqli.java:3208) at com.informix.jdbc.IfxSqli.E(IfxSqli.java:3518) at com.informix.jdbc.IfxSqli.dispatchMsg(IfxSqli.java:2353) at com.informix.jdbc.IfxSqli.receiveMessage(IfxSqli.java:2269) at com.informix.jdbc.IfxSqli.executeOpenDatabase(IfxSqli.java:1786) at com.informix.jdbc.IfxSqliConnect.<init>(IfxSqliConnect.java:1327) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:501) at com.informix.jdbc.IfxDriver.connect(IfxDriver.java:254) at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:151) ... 160 more Caused by: java.sql.SQLException at com.informix.util.IfxErrMsg.getSQLException(IfxErrMsg.java:373) at com.informix.jdbc.IfxSqli.E(IfxSqli.java:3523) ... 170 more DB_LOCALE and CLIENT_LOCALE are set to en_us.utf8 for Administrator. When I set in Server Studio DB_LOCALE and CLIENT_LOCALE to en_us.utf8 I can connect my databases. Where should I set DB_LOCALE and CLIENT_LOCALE to avoid this Database locale information mismatch error? Thanks.

  Read the article

• What good technology podcasts are out there?

  - by Michael Stum

  Yes, Podcasts, those nice little Audiobooks I can listen to on the way to work. With the current amount of Podcasts, it's like searching a needle in a haystack, except that the haystack happens to be the Internet and is filled with too many of these "Hot new Gadgets" stuff :( Now, even though I am mainly a .NET developer nowadays, maybe anyone knows some good Podcasts from people regarding the whole software lifecycle? Unit Testing, Continous Integration, Documentation, Deployment... So - what are you guys and gals listening to? Please note that the categorizations are somewhat subjective and may not be 100% accurate as many podcasts cover several areas. Categorization is made against what is considered the "main" area. General Software Engineering / Productivity Stack Overflow TekPub (Requires Paid Subscription) SE Radio 43 Folders Perspectives Dr. Dobb's (now a video feed) The Pragmatic Podcast (Inactive) IT Matters Agile Toolkit Podcast The Stack Trace (Inactive) Parleys Techzing The Startup Success Podcast Berkeley CS class lectures FOSS Weekly .NET / Visual Studio / Microsoft Herding Code Hanselminutes .NET Rocks! Deep Fried Bytes Alt.Net Podcast Polymorphic Podcast Sparkling Client (The Silverlight Podcast) dnrTV! Spaghetti Code ASP.NET Podcast Channel 9 Radio TFS PowerScripting Podcast The Thirsty Developer Elegant Code ConnectedShow Crafty Coders Coding QA jQuery yayQuery The official jQuery podcast Java / Groovy The Java Posse Grails Podcast Java Technology Insider Ruby / Rails Railscasts Rails Envy The Ruby on Rails Podcast Rubiverse Web Design / JavaScript / Ajax WebDevRadio Boagworld The Rissington podcast Ajaxian YUI Theater Unix / Linux / Mac / iPhone Mac Developer Network Hacker Public Radio Linux Outlaws Mac OS Ken LugRadio Linux radio show (Inactive) The Linux Action Show! Linux Kernel Mailing List (LKML) Summary Podcast Stanford's iPhone programming class SysAdmin, Security or Infrastructure RunAs Radio Security Now! Crypto-Gram Security Podcast Hak5 VMWare VMTN Windows Weekly PaulDotCom Security The Register - Semi-Coherent Computing FeatherCast General Tech / Business Tekzilla This Week in Tech The Guardian Tech Weekly PCMag Radio Podcast Entrepreneurship Corner Manager Tools Other / Misc. / Podcast Networks IT Conversations Retrobits Podcast No Agenda Netcast Cranky Geeks The Command Line Freelance Radio IBM developerWorks The Register - Open Season Drunk and Retired Technometria Sod This Radio4Nerds Hacker Medley

  Read the article

• Problem loading Oracle client libraries when running in a NAnt build

  - by Chris Farmer

  I am trying to use dbdeploy to manage Oracle schema changes. I can run it successfully from the command line to get it to generate my change scripts, but when I try to execute it via the dbdeploy NAnt task running through TeamCity, I get an error: System.Data.OracleClient requires Oracle client software version 8.1.7 or greater. I do have the Oracle 10.2.0.2 client software installed. It's the first entry in the system path, and the dbdeploy.exe app is able to successfully negotiate an Oracle connection. The dbdeploy code dynamically loads the System.Data.OracleClient assembly, which in-turn tries to use the Oracle client bits to talk to the database. This is what is failing in my NAnt environment. I have verified the following points: The same user identity is running the process in both cases The same working directory is used in both cases The same dbdeploy code is running in both cases and with the same supplied parameters The same database connection string is being used in both cases The same ADO.NET assembly is being dynamically loaded in both cases (System.Data.OracleClient, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089) Here's the top of the stack trace during the error: at System.Data.OracleClient.OCI.DetermineClientVersion() at System.Data.OracleClient.OracleInternalConnection.OpenOnLocalTransaction (String userName, String password, String serverName, Boolean integratedSecurity, Boolean unicode, Boolean omitOracleConnectionName) at System.Data.OracleClient.OracleInternalConnection..ctor( OracleConnectionString connectionOptions) at System.Data.OracleClient.OracleConnectionFactory.CreateConnection( DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection( DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) at System.Data.ProviderBase.DbConnectionPool.CreateObject( DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest( DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.GetConnection( DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection( DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection( DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.OracleClient.OracleConnection.Open() at Net.Sf.Dbdeploy.Database.DatabaseSchemaVersionManager. GetCurrentVersionFromDb() My main question is this: how can I discover what's different about these running environments to see why my Oracle client software can't be loaded?

  Read the article

• Useful training courses that aren't specific to a single technology

  - by Dave Turvey

  I have possibly the best problem in the world. I have about £1600 left in a training budget and I need to find something to spend it on. I can spend it on anything that could be considered training. Books, courses, conferences, etc. I would like to find a course that would benifit a software developer but is not about learning a specific programming technology. I don't really want to spend it on a technical training course. These topics are usually best learned with a good book and some trial and error. I have also already been on a general business/management training course and a PRINCE2 project management course. I am currently working on a project on my own so am responsible for communicating with the client, requirements gathering, project management, etc., as well as the coding. What training have you found useful outside the usual technical stuff? Has anyone done any business analysis courses? What were they like? Are there any courses on some of the practicalities of working with software, e.g. automated test and deployment strategies, handling technical support? I would prefer a course in the UK but I can travel if necessary.

  Read the article

• EF4 Generate Database

  - by shaneseaton

  Hi, I am trying my hardest to find the simplest way to create a basic "model first" entity framework example. However I am struggling with the actually generation of the database, particularly the running of the SQL against the database. Tools Visual Studio 2010 SQL Server 2008 Express Process Create a new class project Add a new Server-Database item (mdf) named "Database1.mdf" to the project Add an empty ADO.net Entity Model Create a simple entity (Person: Id, Name) Generate the Script selecting the Database1 connection created for me by visual studio Right click the script editor and select the "Execute SQL..." option Log in to SQLEXPRESS This is where is falls over saying it cant find a database name "Database1". The "problem" is that the SQL server has not had Database1 attached to it. I am 100% positive that Visual Studio use to attach a database to SQLExpress when it created a new database (Step 2). This appears to not be the case any more (even the beta of VS2010 did it). Can someone confirm this? or tell me how to get this to happen? Is there a way that I can modify the TSQL script to use an un-attached database. ie a file. I know I can use SQL Management Studio or sqlcmd to attach the database, but I would ideally like to avoid the solutions as I would like to see the cleanest method of just using visual studio. Ideal Solutions (in order of most prefered) Get visual studio to attach the newly created database Modify the generated SQL to point to file Thanks in advance.

  Read the article

• Technology and language for a stable Digital Audio Workstation development

  - by Kill KRT

  Hi, I'm designing a cross platform (Windows/Linux/OS X) application, something like a digital audio workstation. I'd like to create a software where users have a fully featured sequencer (multiple tracks with automation) and where it is possible to create instruments using a visual language (as Pure Data/Max MSP). Ehm... I know that I've already posted a question about a related issue... But in order to decide which technology I should use, I think I'd better to make more investigation. I'm a quite experted user of audio trackers (Renoise, Protracker,...) and sequencers (FL Studio, Cubase 5), but I didn't ever try to develop even a basic audio tracker. I know just the basic theory of mixing sound and know how basically a DSP works. My questions are: Where I can find a good tutorial/guide/book about this issue? Do you think using C# (with NAudio) could dramatically reduce performance? I know C++ would be the best choice, but I find C# so elegant and easy to build and port, while C++ is so powerful and fast, but there are too #define and bad things for my taste! ;-) Thank you.

  Read the article

• Database structure for ecommerce site

  - by imanc

  Hey Guys, I have been tasked with designing an ecommerce solution. The aspect that is causing me the most problems is the database. Currently the site consists of 10+ country based shops each with their own database (all residing on the same mysql instance). For the new site I'd rather all these shop databases be merged into one database so that all tables (products, orders, customers etc.) have a shop_id field. From a programming perspective this seems to make the most sense as we won't have to manage data across multiple databases. Currently the entire site generates about 120k orders a year, but is experiencing fairly heavy growth and we need to design a solution that will scale. In 5 years there may be more than a million orders per year and a database that contains 5 years order history (archiving maybe a solution here). The question is - do we use a single database, or do we keep the database-per-shop structure? I am currently trying to find supporting evidence for either avenue. The company I am designing the solution for prefer the per-shop database structure because they believe it will allow the sites to scale. But my argument is that the shop's database probably won't get that busy over the next few years that they exceed the capacity of a mysql database and a "no expenses spared" hardware set-up. I am wondering if anyone has any advice either way? Does anyone have experience with websites / ecommerce sites that have tables containing millions of records? I know there is probably not a clear answer here, but at what stage do we have too many records or too large table files to have a fast loading site? Also, if anyone has any advice on sources of information - books, websites, etc. where I can do further research, it would be highly appreciated! Cheers, imanc

  Read the article

< Previous Page | 385 386 387 388 389 390 391 392 393 394 395 396  | Next Page >