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• Software center freezing on start up

  - by user170522

  I already did the apt-get purge, install and update thing but it still freezes when trying to start. This is what I get trying to start in terminal: cliff@cliff-Aspire-X1301:~$ software-center 2013-06-26 17:00:29,092 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None' 2013-06-26 17:00:29,097 - softwarecenter.db.database - INFO - open() database: path=None use_axi=True use_agent=True 2013-06-26 17:00:29,501 - softwarecenter.backend.reviews - WARNING - Could not get usefulness from server, no username in config file 2013-06-26 17:00:29,653 - softwarecenter.ui.gtk3.app - INFO - show_available_packages: search_text is '', app is None. Killed

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• PHP: codecomments inside functions prevents it work

  - by Karem

  $query = $connect->prepare("SELECT firstname, lastname FROM users WHERE id = '$id'"); $query->execute(); $row = $query->fetch(); // $full_name = $row["firstname"] . " ".$row["lastname"]; $full_name = $row["firstname"] . " ".substr($row["lastname"], 0, 1)."."; return $full_name; If i remove the line that is a comment ( // ), it will return $full_name, if its there then it wont work. I also tried commenting with #, but it still wont work(wont return anything) as soon as there is a codecomment weird issue

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• Look-up Tables in SQL

  Lookup tables can be a force for good in a relational database. Whereas the 'One True Lookup Table' remains a classic of bad database design, an auxiliary table that holds static data, and is used to lookup values, still has powerful magic. Joe Celko explains.... NEW! SQL Monitor 2.0Monitor SQL Server Central's servers withRed Gate's new SQL Monitor.No installation required. Find out more.

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• The Wonders of Maatkit for MySQL

  <b>Database Journal:</b> "MySQL is a great database for web-facing applications, however, it tends to be a bit rough around the edges. Enter Maatkit, a great toolkit with a bewildering array of command line tools that fill the gap where MySQL's native tools leave off. From data replication to query profiling and optimizing, Maatkit has tools to make you smarter, and help you get your job done."

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• New Marketing Assets Available

  - by Cinzia Mascanzoni

  NEW translated demand generation materials available for the following Oracle Marketing Kits, designed to help partners generate sales around Oracle's solutions: Improve Database Capacity Management with Oracle Storage and Hybrid Columnar Compression Accelerating Database Test & Development with Sun ZFS Storage Appliance Upgrade SAN Storage to Oracle Pillar Axiom SPARC Refresh with Oracle Solaris Operating System SPARC Server Refresh: The Next Level of Datacenter Performance with Oracle’s New SPARC Servers Oracle Server Virtualization Oracle Desktop Virtualization

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• Oracle Magazine, January/February 2008

  Oracle Magazine January/February features articles on Oracle Database 11g, SOA, Northwestern University, Oracle database replay, Oracle Business Intelligence and Oracle Identity Management, Oracle Real Application Clusters, tuning by tracing, Oracle Application Express, Oracle Data Guard, Oracle Secure Enterprise Search, Oracle Information Rights Management, and much more.

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• WordPress - Emergency Access Without Admin Accounts

  In some cases, when you need to do something in a WordPress website, but all you have is only access to WordPress database and FTP, and you cannot get the admin password from the database because it's decrypted. All changes you have to make via some low level MySQL queries, it's hard and easy mistaken. Joost de Valk has written a script for emergency access to WordPress dashboard by changing admin password or creating new user.

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• Loading form values from one IFrame to another

  - by Roland

  What I want to achieve is the following. A search is made from one IFrame "the form is loaded into this frame via the src atribute of iframe" the search query is then passed to another IFrame that redirects to a url with the query eg. www.test.com/index.php?query=test Is this possible? Currently my code looks as such <iframe src="abc.php" name="iframe1"> </iframe> <iframe name="iframe2"> <?php var_dump($_GET); ?> </iframe> abc.php contains the following <form method="get" action="#" target="iframe2"> <input type="text" name="searchtype" id="searchtype" /> <input type="submit" value="submit"> </form>

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• How to get null when use head funtion with a empty list in cypher?

  - by PeaceMaker

  I have a cypher query like this. START dep=node:cities(city_code = "JGS"), arr=node:cities(city_code = "XMN") MATCH dep-[way:BRANCH2BRANCH_AIRWAY*0..1]->()-->arr RETURN length(way), transfer.city_code, extract(w in way: w.min_consume_time) AS consumeTime The relationship named "way" is a optional one, so the property named "consumeTime" will be a empty list when the relationship "way" not exsit. The query result is: | 0 | "JGS" | [] | | 1 | "SZX" | [3600] | When I want to use the head function with the property "consumeTime", it return a error "Invalid query: head of empty list". How can I get a result like this? | 0 | "JGS" | null | | 1 | "SZX" | 3600 |

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• How to dynamically generate PDF documents

  - by Thomas

  I want to build a web application for generating stylish PDF documents. The layout should be based on a design templates and the data should come dynamically from the database. Ideally I want to design the template in a "publishing like" tool with placeholders and replace these placeholders by the web application with the data from the database. Think of something like an invoice generator, where a customer could choose from different invoice templates and the invoice data itself coming from the DB. Thanks for your ideas!

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• NoSQL MongoDb Overview

  In the current software industry that works around design patterns and OOPs there is a constant battle in converting the data from the database into the objects in the object graph and vice versa. MongoDb is a NoSQL database.  read moreBy prim sDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• NoSQL MongoDb overview

  In the current software industry that works around design patterns and OOPs there is a constant battle in converting the data from the database into the objects in the object graph and vice versa. MongoDb is a NoSQL database.  read moreBy prim sDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Report Builder 3.0: Formatting the Elements in your Report

  here is a lot that can be done to make basic tabular reports more readable, using Microsoft's free Report Builder. Rob Sheldon continues his exploration of the power of this tool by showing how to format various elements within reports. Learn Agile Database Development Best PracticesAgile database development experts Sebastian Meine and Dennis Lloyd are running day-long classes designed to complement Red Gate’s SQL in the City US tour. Classes will be held in San Francisco, Chicago, Boston and Seattle. Register Now.

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• select from varchar2 column with numeric value sometimes gives invalid number error

  - by Rene

  I'm trying to understand why, on some systems, I get an invalid number error message when I'm trying to select a value from a varchar2 column while on other systems I don't get the error while doing the exact same thing. The table is something like this: ID Column_1 Column_2 1 V text 2 D 1 3 D 2 4 D 3 and a query: select ID from table where column_1='D' and column_2 = :some_number_value :some_number_value is always numeric but can be null. We've fixed the query: select ID from table where column_1='D' and column_2 = to_char(:some_number_value) This original query runs fine on most systems but on some systems gives an "invalid number" error. The question is why? Why does it work on most systems and not on some?

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• constructing dynamic In Statements with sql

  - by nitroxn

  Suppose we need to check three boolean conditions to perform a select query. Let the three flags be 'A', 'B' and 'C'. If all of the three flags are set to '1' then the query to be generated is SELECT * FROM Food WHERE Name In ('Apple, 'Biscuit', 'Chocolate'); If only the flags 'A' and 'B' are set to '1' with C set to '0'. Then the following query is generated. SELECT * FROM Food WHERE Name In ('Apple, 'Biscuit'); What is the best way to do it?

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• Fixing "Address 0xADDRESS is not aligned" Error Message

  Table corruption in MS SQL Server database can occur during opening, closing, or modifying of the table. In most situations of database table corruption, users encounter an error message, which stops... [Author: Mark Willium - Computers and Internet - May 13, 2010]

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• count(*) is it really expensive ?

  - by Anil Namde

  I have a page where i have 4 tabs displaying 4 different reports based of different tables. Now i get row count of each tabled using select count() from table query and display number of rows available in each table on the tabs. Now with each page post back 5 count() queries are executed (4 to get counts and 1 for pagination) and 1 query for getting report. Now my question is should is count(*) query really expensive that i should keep the row counts (at least which are displayed on tab) in view state of page instead of queering each time? How much expensive it is ?

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• What will be the better way for data retrieval on application that needs to handle limited amount of data.?

  - by Milanix

  This is not really a coding question since, I am not adding any code in here. Since, adding my code snippets itself would make this question really long. Instead, I am pretty interested in knowing a better ways for data retrieval on application that needs to handle limited amount of data which isn't updated regularly. Let's take this example: I am writing an application which gets a schedule as an XML from server. I have written a logic in order to parse XML version and update database only if the version is newer than the local version. Although the update is checked automatically/manually on daily basis based on user preference, the actual version update happens only once per few months or so. Since, this is done by some other authority which doesn't provide API but, rather inform publicly on their changes. The actual XML contains a "(n number of groups)(days in a week) (n number of schedule)" . The group is usually 6 and the number of schedule is usually 2. So basically there would usually be only around 100 strings. Now although I have used SQLite at the moment. I want to know how to make update on database. Should I show progress dialog that the application is updating and exit the app when it's done? Since, my updates are infrequent i don't think this will really harm user experience but, is there any better ways to do it? Because I don't want update to be made when user is searching which is done using database. This will cause an database already open exception. Atleast I have faced this problem before. Is it better to rather parse XML every time when user wants to view certain things or to use SQLite? Since, I make lots of use of adapter in my app to create lists, will that degrade the performance? It would really be a great help if anyone can give me better overview about it. Or may be counter argument against each. Many thanks!

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• Description des fichiers de données du client mail gratuit DreamMail

  bonjour, DreamMail est un client chinois mail pop3 et webmail classique mais assez complet sous windows son principal intérêt est de permettre le partage réseau d'un compte mail entre plusieurs utilisateurs. (ms jet database) Pour les plus curieux, j'ai écris un petit article décrivant en détail la structure de cette database avec en prime un exemple de script...

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• LINQ - Linq to Sql - Specified cast is not valid - Please Help!

  - by thiag0

  I am trying to do the following... Request request = ( from r in db.Requests where r.Status == "Processing" && r.Locked == false select r).SingleOrDefault(); It is throwing the following exception... Message: Specified cast is not valid. StackTrace: at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute[S](Expression expression) at System.Linq.Queryable.SingleOrDefault[TSource](IQueryable`1 source) at GDRequestProcessor.Worker.GetNextRequest() The .DBML file schema matches my database table that I am trying to select from so I have no clue why I am having this problem. Can anyone help me? Thanks in advance!

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• Makes Sure To Learn About Oracle GoldenGate 12c

  - by Markus Weber

  Whether you use, or are interested in using, Oracle GoldenGate for real-time data integration database upgrades or migrations, or heterogeneous database replication the recently launched GoldenGate 12c release will certainly proof very interesting for you. To learn more about it, make sure to attend the upcoming webcast: In addition, there are several great blog entries over at the Oracle Data Integration blog: Oracle GoldenGate 12c - Leading Enterprise Replication Replicating between Cloud and On-Premises using Oracle GoldenGate Welcome Oracle Data Integration 12c: Simplified, Future-Ready Solutions with Extreme Performance 

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• Oracle Linux Partner Pavilion Spotlight - Part II

  - by Ted Davis

  As we draw closer to the first day of Oracle OpenWorld, starting in less than a week, we continue to showcase some of our premier partners exhibiting in the Oracle Linux Partner Pavilion ( Booth #1033). We have Independent Hardware Vendors, Independent Software Vendors and Systems Integrators that show the breadth of support in the Oracle Linux and Oracle VM ecosystem. In today's post we highlight three additional Oracle Linux / Oracle VM Partners from the pavilion. Micro Focus delivers mainframe solutions software and software delivery tools with its Borland products. These tools are grouped under the following solutions: Analysis and testing tools for JDeveloper Micro Focus Enterprise Analyzer is key to the success of application overhaul and modernization strategies by ensuring that they are based on a solid knowledge foundation. It reveals the reality of enterprise application portfolios and the detailed constructs of business applications. COBOL for Oracle Database, Oracle Linux, and Tuxedo Micro Focus Visual COBOL delivers the next generation of COBOL development and deployment. Itbrings the productivity of the Eclipse IDE to COBOL, and provides the ability to deploy key business critical COBOL applications to Oracle Linux both natively and under a JVM. Migration and Modernization tooling for mainframes Enterprise application knowledge, development, test and workload re-hosting tools significantly improves the efficiency of business application delivery, enabling CIOs and IT leaders to modernize application portfolios and target platforms such as Oracle Linux. When it comes to Oracle Linux database environments, supporting high transaction rates with minimal response times is no longer just a goal. It’s a strategic imperative. The “data deluge” is impacting the ability of databases and other strategic applications to access data and provide real-time analytics and reporting. As such, customer demand for accelerated application performance is increasing. Visit LSI at the Oracle Linux Pavilion, #733, to find out how LSI Nytro Application Acceleration products are designed from the ground up for database acceleration. Our intelligent solid-state storage solutions help to eliminate I/O bottlenecks, increase throughput and enable Oracle customers achieve the highest levels of DB performance. Accelerate Your Exadata Success With Teleran. Teleran’s software solutions for Oracle Exadata and Oracle Database reduce the cost, time and effort of migrating and consolidating applications on Exadata. In addition Teleran delivers visibility and control solutions for BI/data warehouse performance and user management that ensure service levels and cost efficiency.Teleran will demonstrate these solutions at the Oracle Open World Linux Pavilion: Consolidation Accelerator - Reduces the cost, time and risk ofof migrating and consolidation applications on Exadata. Application Readiness – Identifies legacy application performance enhancements needed to take advantage of Exadata performance features Workload Accelerator – Identifies and clusters workloads for faster performance on Exadata Application Visibility and Control - Improves performance, user productivity, and alignment to business objectives while reducing support and resource costs. Thanks for reading today's Partner Spotlight. Three more partners will be highlighted tomorrow. If you missed our first Partner Spotlight check it out here.

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• Inline Conditional Statement in Stored Procedure

  - by Jason

  Here is the pseudo-code for my inline query in my code: select columnOne from myTable where columnOne = '#variableOne#' if len(variableTwo) gt 0 and columnTwo = '#variableTwo#' end I would like to move this into a stored procedure but am having trouble building the query correctly. I assume it would be something like select columnOne from myTable where columnOne = @variableOne CASE WHEN len(@variableTwo) <> 0 THEN and columnTwo = @variableTwo END This is giving me a syntax error. Could someone tell me what I've got wrong. Also, I would like to keep it to only one query and not just have one if statement. Also, I do not want to build the sql in the stored procedure and run Exec() on it.

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• Nesting queries in SQL

  - by ZAX

  The goal of my query is to return the country name and its head of state if it's headofstate has a name starting with A, and the capital of the country has greater than 100,000 people utilizing a nested query. Here is my query: SELECT country.name as country, (SELECT country.headofstate from country where country.headofstate like 'A%') from country, city where city.population > 100000; I've tried reversing it, placing it in the where clause etc. I don't get nested queries. I'm just getting errors back, like subquery returns more than one row and such. If someone could help me out with how to order it, and explain why it needs to be a certain way, that'd be great.

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• Transparent Data Encryption (TDE) in SQL Server 2008

  Tapas Pal shows you how to encrypt your SQL Server database for a pre-existing, business critical web application using Transparent Data Encryption (TDE), a new full database encryption technique introduced in SQL Server 2008.

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