Posted byIndika
Cache vs Cookies Cookies and cache (or browser cache) are two forms of temporary storage kept on client’s machine to improve the performance of web pages. Cookie is a very small piece of information that is stored on the client’s machine by the web site and is sent back to the server each time a […]
Posted byIndika
Update vs Alter Update and Alter are two SQL (Structured Query Language) commands used for modifying databases. Update statement is used to update existing records in a database. Update is a Data Manipulation Language (DML) statement. Alter SQL command is used to modify, delete or add a column to an existing table in a database. […]
Posted byIndika
SQL Server Express 2005 vs SQL Server Express 2008 | SQL Server Express 2005 vs 2008 SQL Server is a relational model database server produced by Microsoft. And SQL Server Express is a scaled down version of SQL Server which is free. SQL Server Express 2008 (which is the scaled down version of SQL Server […]
Posted byIndika
Definite Loop vs Indefinite Loop A loop is a block of code that would repeat for a specified number of times or until some condition is satisfied. A definite loop is a loop in which the number of times it is going to execute is known in advance before entering the loop. In an indefinite […]
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PL-SQL vs T-SQL T-SQL (Transact SQL) is an extension of SQL developed by Microsoft. T-SQL is used in Microsoft SQL Server. PL/SQL (Procedural Language/Structured Query Language) is also a procedural extension for SQL developed by Oracle. PL/SQL is a main programming language embedded in the Oracle database. PL/SQL PL/SQL is a procedural extension for SQL […]
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SQL vs T-SQL Query languages are used for accessing and manipulating databases. SQL and T-SQL are two of the popular query languages used today. Structured Query Language (SQL) is a computer language for databases. It is used for accessing and manipulating data in Relational Database Management Systems (RDMS). T-SQL (Transact SQL) is an extension of […]
Posted byIndika
Classes vs Structures Some of the main concepts of Object Oriented (OO) programming languages are encapsulation, inheritance and polymorphism. Class and Structure are two of the OO constructs/tools, which help programmers to achieve these concepts within most of the exiting OO programming languages (Java does not provide structures). Classes are an abstract representation of real […]
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层叠样式表(CSS)类和ID是一个朗uage that describes the look and formatting of a document written using a markup language. CSS is widely used to style web pages written in HTML. CSS allows specifying your own style selectors in addition to applying styles for HTML elements. This is done using the […]
Posted byIndika
Cookies vs Sessions HTTP is stateless, which means that any data stored are destroyed when the client receives the page from the server and the connection is closed. Cookies and sessions are two solutions for this problem. Cookie is a very small piece of information that is stored on the client’s machine by the web […]
Posted byIndika
Coupling vs Cohesion Coupling and cohesion are two concepts found in Java (and all other object oriented languages). Coupling measures how much each of the program modules are dependent on the other program modules. Cohesion measures how strongly each of the functions are related within a module. Actually, any object oriented language (including Java) has […]