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Can Group Functions Be Mixed with Non-group Selection Fields
Can Group Functions Be Mixed with Non-group Selection Fields? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If a group function is used in the SELECT clause, all other selection fields must be group level fields. Non-group fields can not be mixed with group fields in the SELECT clause. Th... 2007-05-11, 5861👍, 0💬

How To Calculate the Difference between Two Dates
How To Calculate the Difference between Two Dates? - MySQL FAQs - Introduction to SQL Date and Time Handling If you have two dates, and you want to know how many days between them, you can use the DATEDIFF(date1, date2) function as shown below: SELECT DATEDIFF(DATE('1997-02-28'), DATE('1997-03-01'))... 2007-05-11, 5860👍, 0💬

Do You Know the Book "JUnit Recipes: Practical Methods for Programmer Testing"
Do You Know the Book "JUnit Recipes: Practical Methods for Programmer Testing"? You should know this book. It received some good reviews. Title: JUnit Recipes: Practical Methods for Programmer Testing Publisher: Manning Publications (July 15, 2004) Author: J. B. Rainsberger, Scott Stirling Abstract:... 2008-01-03, 5859👍, 0💬

How To Use w3.org Feed Validation Service
How To Use w3.org Feed Validation Service? - RSS FAQs - Atom Feed Introduction and File Generation w3.org feed validation service is provided at http://validator.w3.org/feed/. It offers you two methods to validate your feed document: Validate by URL - Validating a feed file by entering the URL where... 2007-05-12, 5859👍, 0💬

What Is the Order of Defining Local Variables and Sub Procedures/Functions
What Is the Order of Defining Local Variables and Sub Procedures/Functions? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions In the declaration part, you must define all local variables before defining any sub procedures or sub functions. See the following sample script: SQL> CRE... 2007-04-25, 5859👍, 0💬

How To Define an Anonymous Block
How To Define an Anonymous Block? - Oracle DBA FAQ - Introduction to PL/SQL An anonymous block must have an execution part, which is a group of other PL/SQL statements enclosed in the BEGIN ... END statement. Here is a script on how to define a simple anonymous block with SQL*Plus: SQL> set serverou... 2007-04-25, 5859👍, 0💬

How can we acheive inheritance in VB.NET
How can we acheive inheritance in VB.NET ? Inheritance is achieved by using “Inherits” keyword in VB.NET (For C# it is “:”). Simple Sample is provided in CD for understanding inheritance in folder “WindowsApplicationInheritance ”.There are two classes one is the parent “ClsParent” and second is t... 2007-10-23, 5857👍, 0💬

What Atom 1.0 Files Look Like
What Atom 1.0 Files Look Like? - RSS FAQs - Introduction to RSS (Really Simple Syndication) Basics An Atom 1.0 file looks like the sample Atom 1.0 document below: &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;feed xmlns="http://www.w3.org/2005/ Atom"&gt;&lt;title&gt;Atom F... 2007-05-12, 5857👍, 0💬

what is a service contract, operation contract and Data Contract - part 1
what is a service contract, operation contract and Data Contract? - part 1 In this example we will make simple service which displays the total cost of the complete product group. In simple words this service will take three parameters per product cost, number of products and the product name. In re... 2007-11-04, 5855👍, 0💬

Servlet Communicates with JSP Pages
How does a servlet communicate with a JSP page? The following code snippet shows how a servlet instantiates a bean and initializes it with FORM data posted by a browser. The bean is then placed into the request, and the call is then forwarded to the JSP page, Bean1.jsp, by means of a request dispatc... 2007-04-03, 5854👍, 0💬

What is a CTS
What is a CTS? In order that two language communicate smoothly CLR has CTS (Common Type System).Example in VB you have “Integer” and in C++ you have “long” these datatypes are not compatible so the interfacing between them is very complicated. In order to able that two different languages can commu... 2007-10-22, 5851👍, 0💬

How To Get Some Basic Information Back from MySQL Servers
How To Get Some Basic Information Back from MySQL Servers? - MySQL FAQs - PHP Connections and Query Execution Once you got a MySQL server connection object successfully, you can use mysql_get_server() and mysql_get_host_info() to get some basic information from your MySQL server. The tutorial exerci... 2007-05-10, 5851👍, 0💬

What does the "Access is Denied" IE error mean?
What does the "Access is Denied" IE error mean? The "Access Denied" error in any browser is due to the following reason. A JavaScript in one window or frame is tries to access another window or frame whose document's domain is different from the document containing the script. 2008-07-08, 5850👍, 0💬

How To Specify Is the Color of the Margin Area
How To Specify Is the Color of the Margin Area? - CSS Tutorials - HTML Formatting Model: Block, Inline and Floating Elements CSS doesn't allow you to specify the color of the margin area of a block element. The color of the margin area is transparent. It means that the background color or background... 2007-05-11, 5850👍, 0💬

What Is Integrity?
What Is Integrity? Several points about data integrity: Assures database data and structures reflects all changes made to them in the correct sequence. Locks ensure data integrity and maximum concurrent access to data. Commit statement releases all locks. Types of locks are given below. Data Locks p... 2007-04-15, 5849👍, 0💬

Relation between HTML and URL
What Is the Relation between HTML and URL? URL (Uniform Resource Locator) is a compact string representation of the location for a Web document or other resource that is available on the Internet. The URL of a HTML document is usually the document file name prefixed with the domain name of your Web ... 2007-03-03, 5848👍, 0💬

What is Manifest
What is Manifest? Assembly metadata is stored in Manifest. Manifest contains all the metadata needed to do the following things (See Figure Manifest View for more details): Version of assembly Security identity Scope of the assembly Resolve references to resources and classes. The assembly manifest ... 2007-10-22, 5847👍, 0💬

What is ILDASM
If you want to view a Assembly how do you go about it ? When it comes to understanding of internals nothing can beat ILDASM. ILDASM basically converts the whole exe or dll in to IL code. To run ILDASM you have to go to "C:\Program Files\Microsoft Visual Studio .NET 2003\SDK\v1.1\Bin". Note that i ha... 2007-10-22, 5847👍, 0💬

What Is the Structure of Atom Feed Documents
What Is the Structure of Atom Feed Documents? - RSS FAQs - Atom Feed File Structure and Elements An Atom feed document must have a root element called "feed". Within in the "feed" element, one or more "entry" elements are enclosed. The high level structure of an Atom feed document looks like: &l... 2007-05-12, 5847👍, 0💬

How To Switch between Autocommit-On and Autocommit-Off Modes
How To Switch between Autocommit-On and Autocommit-Off Modes? - MySQL FAQs - Transaction Management: Commit or Rollback By default, your connection session will be in Autocommit-On mode, where every server executable statement will start a new transaction, and end the transaction when the execution ... 2007-05-11, 5845👍, 0💬

What Is Wrong with My "checked" Attribute Values
What Is Wrong with My "checked" Attribute Values? - XHTML Tutorials - Introduction To Tag and Attribute Syntax Attribute "checked" is an optional attribute for XHTML element "input". In XHTML specification, attribute "checked" has only predefined value: "checked". However, in HTML specification, att... 2007-05-12, 5842👍, 0💬

What Is an Online RSS Aggregator
What Is an Online RSS Aggregator? - RSS FAQs - Adding Your Feeds to RSS News Readers and Aggregators An online RSS aggregator is a Website that serves you as a RSS aggregator. Once you have registered an online RSS aggregator, you can access it from any computer on the Internet. Examples of online R... 2007-05-12, 5842👍, 0💬

How Many File Formats Are Supported to Export Data
How Many File Formats Are Supported to Export Data? - Oracle DBA FAQ - Introduction to Oracle SQL Developer Oracle SQL Developer can allow to export table data into files in the following formats: TXT - Tab delimited fields file format. CSV - Comma Separated Values (CSV) file format. LOADER - File f... 2007-04-27, 5842👍, 0💬

What’s an Object
What’s an Object ? It is a basic unit of a system. An object is an entity that has attributes, behavior, and identity. Objects are members of a class. Attributes and behavior of an object are defined by the class definition. 2007-10-23, 5841👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML