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How do you do object pooling in .NET
How do you do object pooling in .NET ? COM+ reduces overhead by creating object from scratch. So in COM+ when object is activated its activated from pool and when its deactivated it’s pushed back to the pool. Object pooling is configures by using the “ObjectPoolingAttribute” to the class. Note:- Wh...
2007-10-22, 5355👍, 0💬

How To Turn on Error Logs
How To Turn on Error Logs? - MySQL FAQs - Server Daemon mysqld Administration If you want MySQL to write critical errors into a log file, you can use the "--log-error=fileName" option at the "mysqld" command line. The tutorial exercise below shows you a good example on how to use this option: >cd \m...
2007-05-11, 5355👍, 0💬

How To Loop through a Cursor Variable
How To Loop through a Cursor Variable? - Oracle DBA FAQ - Working with Cursors in PL/SQL Once a cursor variable is opened with a query statement, it will have the same attributes as a normal cursor and it can be used in the same way a normal cursor too. The following sample script shows you how to l...
2007-04-28, 5355👍, 0💬

What Are Sub-elements of the entry Element
What Are Sub-elements of the entry Element? - RSS FAQs - Atom Feed File Structure and Elements The "entry" element has the following sub-elements defined: &lt;author&gt; - Specifying the personal information about an author of the contents provided in this feed entry. A feed element may have...
2007-05-12, 5353👍, 0💬

How To Create a New Table by Selecting Rows from Another Table
How To Create a New Table by Selecting Rows from Another Table? - Oracle DBA FAQ - Managing Oracle Database Tables Let's say you have a table with many data rows, now you want to create a backup copy of this table of all rows or a subset of them, you can use the CREATE TABLE...AS SELECT statement to...
2007-05-03, 5353👍, 0💬

I want to use the Win32 API function .....
When we use windows API in Dot Net? I want to use the Win32 API function : SendMessageToDescendants I want to use it in a VB.Net app, but I have a few questions..... 1) Can one use Win32 API functions in VB.Net 2) Is doing so a "no no" 3) are VB.Net windows, underneath the covers, Win32 windows? and...
2009-03-06, 5352👍, 0💬

How To Get the Directory Name out of a File Path Name
How To Get the Directory Name out of a File Path Name? - PHP Script Tips - Working with Directoris and Files If you have the full path name of a file, and want to get the directory name portion of the path name, you can use the dirname() function. It breaks the full path name at the last directory p...
2007-04-23, 5352👍, 0💬

What Are NULL Values
What Are NULL Values? - MySQL FAQs - Introduction to SQL Basics NULL is a special value that represents no value. Here are basic rules about NULL values: NULL presents no value. NULL is not the same as an empty string ''. NULL is not the same as a zero value 0. NULL can be used as any data type. NUL...
2007-05-11, 5351👍, 0💬

What are the element in State Chart diagrams
What are the element in State Chart diagrams ? State: Itfs a condition when following events occur: bject satisfies a condition. Or performs a action. Or waits for a event to happen. Composite State : It has one or more sub states. Initial State: It represents a state before any event occurs. Final...
2007-10-26, 5350👍, 0💬

How To Use Existing Values in UPDATE Statements
How To Use Existing Values in UPDATE Statements? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If a row matches the WHERE clause in a UPDATE statement, existing values in this row can be used in expressions to provide new values in the SET clause. Existing values are represen...
2007-05-11, 5350👍, 0💬

What are the ways to emit client-side JavaScript from server-side code in ASP.NET?
What are the ways to emit client-side JavaScript from server-side code in ASP.NET? The Page object in ASP.NET has two methods that allow emitting of client-side JavaScript: RegisterClientScriptBlock and RegisterStartupScript. Example usage: Page.RegisterClientScriptBlock ("ScriptKey","&lt;script...
2008-08-05, 5349👍, 0💬

What Is a MAP Tag/Element
What Is a MAP Tag/Element? - XHTML 1.0 Tutorials - Understanding Inline Images and Image Maps A "map" element is special inline element that you to define map entries to be used by image maps. Here are some basic rules on "map" elements: "map" elements are inline elements. "map" elements can not hav...
2007-05-12, 5349👍, 0💬

JSP Scripting Elements
How many JSP scripting elements and what are they? There are three scripting language elements: declarations scriptlets expressions
2007-04-03, 5349👍, 0💬

Can we suggest locking hints to SQL SERVER
Can we suggest locking hints to SQL SERVER ? We can give locking hints that helps you over ride default decision made by SQL Server. For instance, you can specify the ROWLOCK hint with your UPDATE statement to convince SQL Server to lock each row affected by that data modification. Whether it's prud...
2007-10-25, 5346👍, 0💬

How To Delete an Existing Row from a Table
How To Delete an Existing Row from a Table? - Oracle DBA FAQ - Understanding SQL DML Statements If you want to delete an existing row from a table, you can use the DELETE statement with a WHERE clause to identify that row. Here is good sample of DELETE statements: INSERT INTO fyi_links (url, id) VAL...
2007-04-21, 5345👍, 0💬

What is the data types of variables of in JavaScript?
What is the data types of variables of in JavaScript? Number, String, Boolean, Function, Object, Null, Undefined.
2008-06-24, 5342👍, 0💬

How To Set Up SQL*Plus Output Format
How To Set Up SQL*Plus Output Format? - Oracle DBA FAQ - Understanding SQL DML Statements If you want to practice SQL statements with SQL*Plus, you need to set up your SQL*Plus output formatting parameter properly. The following SQL*Plus commands shows you some examples: COLUMN id FORMAT 9999; COLUM...
2007-04-22, 5342👍, 0💬

How To Detect File Uploading Errors
How To Detect File Uploading Errors? - PHP Script Tips - Uploading Files to Web Servers If there was a problem for a file upload request specified by the &lt;INPUT TYPE=FILE NAME=fieldName...> tag, an error code will be available in $_FILES[$fieldName]['error']. Possible error code values are: U...
2007-04-19, 5342👍, 0💬

Can DIV Elements Be Floated
Can DIV Elements Be Floated? - XHTML 1.0 Tutorials - Understanding DIV and SPAN elements Can "div" elements be floated? The answer is yes. If you want to float a "div" block, you can use the "float" CSS property. Here is a tutorial example of floated "div" elements: &lt;?xml version="1.0" ?&...
2007-05-12, 5341👍, 0💬

How does XML handle white-space in my documents
How does XML handle white-space in my documents? All white-space, including linebreaks, TAB characters, and normal spaces, even between structural elements where no text can ever appear, is passed by the parser unchanged to the application (browser, formatter, viewer, converter, etc), identifying th...
2007-04-11, 5340👍, 0💬

What is the difference between VB.NET and C# ?
.NET INTERVIEW QUESTIONS - What is the difference between VB.NET and C# ? This is the most debatable issue in .NET community and people treat there languages like religion. Its a subjective matter which language is best. Some like VB.NET’s natural style and some like professional and terse C# syntax...
2010-04-20, 5339👍, 0💬

What Are Date and Time Functions
What Are Date and Time Functions? - MySQL FAQs - Introduction to SQL Date and Time Handling MySQL offers a number of functions for date and time values: ADDDATE(date, INTERVAL expr unit) - Adding days to a date. Same as DATE_ADD(). ADDTIME(time1, time2) - Adding two time values together. CURDATE() -...
2007-05-11, 5339👍, 0💬

What Is a Data Lock
What Is a Data Lock? - MySQL FAQs - Transaction Management: Commit or Rollback MySQL uses two types of data locks at two levels to provide you the transaction isolation level you need: Share Lock at Row Level (S) - A data row is locked by a transaction for reading. Exclusive Lock at Row Level (X) - ...
2007-05-09, 5339👍, 0💬

How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures
How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures? ADO.NET provides the SqlCommand object which provides the functionality of executing stored procedures. Note :- Sample code is provided in folder “WindowsSqlClientCommand”. There are two stored proce...
2007-10-24, 5338👍, 0💬

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