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About this blog…About this blog…
About MeAbout Me
Favourite LinksFavourite Links
Neden hazır blog'ları kullanmadım ki?Neden hazır blog'ları kullanmadım ki?
CSS is more powerful than you imagineCSS is more powerful than you imagine
Turkcell Staj Günlüğü - 1: Introduction to OracleTurkcell Staj Günlüğü - 1: Introduction to Oracle
Turkcell Staj Günlüğü - 2: Data Blocks, Extends and SegmentsTurkcell Staj Günlüğü - 2: Data Blocks, Extends and Segments
Kahin'e yolculuk nasıl başlamalı?Kahin'e yolculuk nasıl başlamalı?
Turkcell Staj Günlüğü - 3: Tablespaces, Datafiles and Control FilesTurkcell Staj Günlüğü - 3: Tablespaces, Datafiles and Control Files
Turkcell Staj Günlüğü - 4: Transaction ManagementTurkcell Staj Günlüğü - 4: Transaction Management
Image formats - Which to use whenImage formats - Which to use when
Turkcell Staj Günlüğü - 5: Startup, ShutdownTurkcell Staj Günlüğü - 5: Startup, Shutdown
Turkcell Staj Günlüğü - 6: Oracle ArchitectureTurkcell Staj Günlüğü - 6: Oracle Architecture
ASP - Locales and CodepagesASP - Locales and Codepages
Oracle performance analysis - Tracing and performance evaluationOracle performance analysis - Tracing and performance evaluation
Oracle performance analysis - Autotrace workshopOracle performance analysis - Autotrace workshop
Oracle performance analysis - Runstats workshopOracle performance analysis - Runstats workshop
Oracle performance analysis - Tkprof workshopOracle performance analysis - Tkprof workshop
Some favourite quotesSome favourite quotes
Derin anlamlı sözler - Bunlar da Türkçe olanlar :)Derin anlamlı sözler - Bunlar da Türkçe olanlar :)
Turkcell Staj Günlüğü - 7: Concurrency and ConsistencyTurkcell Staj Günlüğü - 7: Concurrency and Consistency
"Kurtuluş"un hikayesi"Kurtuluş"un hikayesi
Turkcell Staj Günlüğü - 8: Statement Processing and CBOTurkcell Staj Günlüğü - 8: Statement Processing and CBO
When a transaction begins?When a transaction begins?
Implicit vs. Explicit cursors - Performance analysisImplicit vs. Explicit cursors - Performance analysis
Turkcell Staj Günlüğü - 9: "SQL, PL/SQL and Java" ve "Redo Internals"Turkcell Staj Günlüğü - 9: "SQL, PL/SQL and Java" ve "Redo Internals"
Affect of gathering table stats to decision of CBOAffect of gathering table stats to decision of CBO
Bind is bad :) - An interesting case of bind variables failsBind is bad :) - An interesting case of bind variables fails
When the explanation doesn't sound quite right...When the explanation doesn't sound quite right...
Turkcell Staj Günlüğü - 10: Import, Export ve SQL LoaderTurkcell Staj Günlüğü - 10: Import, Export ve SQL Loader
Turkcell Staj Günlüğü - 11: Autonomous Transactions ve Dynamic SQLTurkcell Staj Günlüğü - 11: Autonomous Transactions ve Dynamic SQL
Difference between db block gets and consistent getsDifference between db block gets and consistent gets
Object-Oriented Features of Oracle - Part 1: Native Datatypes vs. Object DatatypesObject-Oriented Features of Oracle - Part 1: Native Datatypes vs. Object Datatypes
Object-Oriented Features of Oracle - Part 2: Object Types and Collection typesObject-Oriented Features of Oracle - Part 2: Object Types and Collection types
Object-Oriented Features of Oracle - Part 3: Object Tables, Object Views and REFsObject-Oriented Features of Oracle - Part 3: Object Tables, Object Views and REFs
Examining show_spaceExamining show_space
Turkcell Staj Günlüğü - 12: PartitioningTurkcell Staj Günlüğü - 12: Partitioning
Hello World!Hello World!
Decode Demo #1Decode Demo #1
Decode Demo #2Decode Demo #2
Decode Demo #3Decode Demo #3
Decode Demo #4Decode Demo #4
Decode Function in Oracle SQLDecode Function in Oracle SQL
Windows Source CodesWindows Source Codes
Türkçe Karakterli Domain'lerin İç YüzüTürkçe Karakterli Domain'lerin İç Yüzü
Whence C? Why C? Whither C?Whence C? Why C? Whither C?
Differences between C and C++Differences between C and C++
Is C a Vitamin? Yes, of course...Is C a Vitamin? Yes, of course...
Obfuscated CObfuscated C
Finding and Removing Loop on a Singly-Linked ListFinding and Removing Loop on a Singly-Linked List
Matematik Asla Yalan Söylemez!Matematik Asla Yalan Söylemez!
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Finding and Removing Loop on a Singly-Linked List |
Category: C / C++
Date: 06.02.2008 12:02:52
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Views: 13975
Comments: 0
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One of the most common interview questions for software professionals is "How do you find a loop in a singly linked list?". Most of the people tend to think in the recursive way to solve this problem. The truth is that the most optimal solution for this problem lies out of the scope of the linked list...
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Obfuscated C |
Category: C / C++
Date: 03.02.2008 15:27:17
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Views: 10437
Comments: 1
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Obfuscated code is source code that is (usually intentionally) very hard or ambiguous to read and understand with extraneous information. Some languages are more prone to obfuscation than others. C, C++ and Perl are most often cited as easily obfuscatable languages. Macro preprocessors are often used to create hard-to-read code by masking the standard language syntax and grammar from the main body of code.
Code is sometimes obfuscated deliberately for recreational purposes. There are programming contests which reward the most creatively obfuscated code. The contest for C code obfuscation is "The
International Obfuscated C Code Contest".
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Differences between C and C++ |
Category: C / C++
Date: 29.01.2008 23:58:06
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Views: 36775
Comments: 0
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The C programming language was designed by Dennies Ritchie in the early 1970s at Bell Laboratories. It was first used system implementation language for the nascent Unix operating system. The main reason to devised C was to overcome the limitations of B. It was Derived from the type-less language BCPL ((Basic Combined Programming Language). C was was the evolution of B and BCPL by incorporating type checking. It was originally intended for use in writing compilers for other languages.
C++ was devised by Bjarne Stroustrup in 1983 at Bell Laboratories. It is an extension of C by adding some enhancements to C language. Bjarne combined the simula's(a language designed for making simulations, created by Ole-Johan Dahl and Kristen Nygaard) features of object oriented and the efficiency of C. The new features added to language are templates, namespaces, exception handling and use of standary library...
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Whence C? Why C? Whither C? |
Category: C / C++
Date: 29.01.2008 23:52:34
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Views: 8593
Comments: 0
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As about ten years ago, C was the most popular programming language being used. Programmers wrote C code for PCs, mainframes, and supercomputers. C was standardized so that the same program would run on every kind of computer using every kind of operating system available.
Today, the use of C has dramatically decreased. Rarely will a project be written in C. Programmers are using languages such as C++ and Java to create applications that run on standalone, networked, and Internet-based machines. Yet, when learning to program, C is considered to be the one language it is imperative a programmer master before moving on to the other languages in use today...
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Türkçe Karakterli Domain'lerin İç Yüzü |
Category: OFF-Topic
Date: 22.12.2007 13:09:31
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Views: 8703
Comments: 2
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Haberiniz var mı? 4 Aralık 2006 tarihinden itibaren Türkçe karakterli domainler de tescil edilmeye başlandı. Almadıysanız ve kaptırmadıysanız şirketinizin veya isminizin domainini hemen alın! Ancak, bunu yaparken dikkat etmeniz gereken bir husus var! Türkiye'de, her şeyde olduğu gibi, bu yenilikten de rant elde etmeye çalışanlar, hatta şimdiye kadar bile büyük paralar götürenler var...
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Windows Source Codes |
Category: Operating Systems
Date: 17.09.2007 00:00:30
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Views: 8263
Comments: 1
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Microsoft has suffered what appears to be a severe leak of Windows source code, with a file circulating on the Internet appearing to consist of several million lines of code from around mid-2000. The source code seems to relate to NT4 and Windows 2000, and in a statement the company has conceded that "portions of the Microsoft Windows 2000 and Windows NT 4.0 source code were illegally made available on the Internet.
Finally, we got the source code with great effort, and I am publishing just some part of it.
"It's illegal for third parties to post Microsoft source code," spokesman Tom Pilla said. "We obviously take that very seriously." So, don't tell anybody that you got it from here, just Enjoy ;)
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Decode Function in Oracle SQL |
Category: SQL-Oracle-PL/SQL
Date: 16.09.2007 23:24:21
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Views: 64027
Comments: 1
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The decode function can be used in SQL for and IF-THEN-ELSE construction. It's an alternative for the CASE statement which was introduced in Oracle 8.
Decode is a very useful and handy function for Oracle queries. It replaces the complex If-Then-Else logic, which is used to display different things based on different values in a column. This is usually used for pivoting purposes.
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Hello World! |
Category: OFF-Topic
Date: 16.09.2007 22:32:48
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Views: 7181
Comments: 0
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A "hello world" program is a computer program that prints out "Hello, World!" on a display device. It is used in many introductory tutorials for teaching a programming language. Such a program is typically one of the simplest programs possible in a computer language.
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Turkcell Staj Günlüğü - 12: Partitioning |
Category: SQL-Oracle-PL/SQL
Date: 06.09.2007 12:35:28
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Views: 14985
Comments: 2
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Merhaba, yine uzun bir aradan sonra staj günlüğüme yazmaya devam ediyorum. Bu, serinin 12. yazısı olacak ve konumuz Ertürk'ün yaptığı partitioning sunumu.
Turkcell'deki stajımızın sonuna yaklaşıyoruz yavaş yavaş, son haftalarda da gayet yoğun projeler üzerinde uğraşıyorduk herbirimiz. Dolayısıyla yazmaya vaktim olmadı. Stajın benim açımdan (ve sanırım Yazlım Geliştirme departmanındaki diğer arkadaşlar açısından da) çok keyifli geçtiğini söyleyebilirim. Hepimiz uzun soluklu, gerçek projelerde yer aldık ve kod yazdık. Eğitici sunumlar yaz boyunca devam etti, ediyor. Ve en güzeli de buradaki üst düzey yöneticilerimizle sohbet toplantılarımız oluyor ve onlar da bizimle tecrübelerini paylaşıyorlar. Gerçekten çok keyifli herşey. Burada öğrendiklerimiz ve özellikle yöneticilerimizle sohbetlerimiz binlerce dolar vererek bile kazanılamayacak tecrübelerdi. Turkcell Türkiye'nin en büyük ve en gelişmiş platformarından birine sahip ve böyle bir platformda çalışma, proje geliştirme, analiz yapma imkanını başka bir şekilde veya her zaman bulamazsınız.
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Examining show_space |
Category: SQL-Oracle-PL/SQL
Date: 13.08.2007 20:20:38
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Views: 10389
Comments: 0
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Many people knows the show_space procedure of Tom KYTE. The procedure shows the space issues for an object, given in parameters. Execution of procedure is simple, and statistics are good. But, in AskTom, the show_space procedure has many versions :) and it's hard to know which is the last version. Also, the procedures can thow some errors in some cases and it is sometimes hard to clarify the error. In this topic, I will deal with them and give the code of last-version, running show_space code :)
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Object-Oriented Features of Oracle - Part 1: Native Datatypes vs. Object Datatypes |
Category: SQL-Oracle-PL/SQL
Date: 13.08.2007 08:22:00
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Views: 11896
Comments: 0
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This was actually my presentation on Aug 6, 2007 in Turkcell, about "Object Datatypes and Object Views" but I will write more on this article. This article consists of three parts.
Oracle is a relational database, but it has a great feature of object-oriented abstraction. Hence, you can use Oracle as a fully object-oriented database and develop your applications on this was. Also, you can use this object-oriented features on your relational schema, without modifying the relational data, just using object views.
Part-1 contains detailed overview of native datatypes and introduction to object datatypes.
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