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How To Select Some Columns from a Table
How To Select Some Columns from a Table? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If you want explicitly tell the query to return some columns, you can specify the column names in the SELECT clause. The following select statement returns only two columns, "id" and "url" from the tabl...
2007-05-11, 5347👍, 0💬

How To Use Attributes of the Implicit Cursor
How To Use Attributes of the Implicit Cursor? - Oracle DBA FAQ - Working with Cursors in PL/SQL Right after executing a DML statement, you retrieve any attribute of the implicit cursor by using SQL%attribute_name, as shown in the following tutorial exercise: CREATE TABLE student (id NUMBER(5) PRIMAR...
2007-04-29, 5347👍, 0💬

How To Create an Array
How To Create an Array? - PHP Script Tips - Understanding PHP Arrays and Their Basic Operations You can create an array using the array() constructor. When calling array(), you can also initialize the array with pairs of keys and values. Here is a PHP script on how to use array(): &lt;?php print...
2007-04-20, 5347👍, 0💬

What Are the CSS Cascading Order Rules
What Are the CSS Cascading Order Rules? - CSS Tutorials - Introduction To CSS Basics The most important cascading order rules are: A specified CSS definition wins over a default CSS definition in the browser. A CSS definition with a contextual selector wins over a CSS definition with a tag selector....
2007-05-11, 5346👍, 0💬

How To List All Indexes in Your Schema
How To List All Indexes in Your Schema? - Oracle DBA FAQ - Managing Oracle Table Indexes If you log in with your Oracle account, and you want to get a list of all indexes in your schema, you can get it through the USER_INDEXES view with a SELECT statement, as shown in the following SQL script: SELEC...
2007-05-02, 5346👍, 0💬

How To Call a Stored Function with Parameters
How To Call a Stored Function with Parameters? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions You can define a function that takes parameters, provide values to those parameters when calling the function. Here is a good example of a function with a parameter: SQL> CREATE OR REP...
2007-04-25, 5346👍, 0💬

Are you concerned that older browsers don't support JavaScript and thus exclude a set of Web users?
Are you concerned that older browsers don't support JavaScript and thus exclude a set of Web users? Fragmentation of the installed base of browsers will only get worse. By definition, it can never improve unless absolutely everyone on the planet threw away their old browsers and upgraded to the late...
2008-06-10, 5345👍, 0💬

What is WCF part 2
What is WCF part 2 So he concluded to use MSMQ (Microsoft Message Queuing) service. He analyzed that the main problem was that the travel agent had to wait until his first ticket booking is not completed. So when the travel agent makes a booking it will come and fall in the queue and release the tra...
2007-11-03, 5345👍, 0💬

What Is a URL
What Is a URL? - XHTML 1.0 Tutorials - Understanding Hyper Links and URLs A URL (Uniform Resource Locator) is a reference name representing a location of a Web document or other resource that is available on the Internet. Here are some examples of URLs: "http://www.w3.org/" "http://dev.fyicenter.com...
2007-05-12, 5345👍, 0💬

What Is an XHTML Element
What Is an XHTML Element? - XHTML Tutorials - Introduction To Tag and Attribute Syntax An XHTML element is the basic building block of an XHTML document. An XHTML element has the following features: An XHTML element must have a name. An XHTML element may have zero or more attributes. An XHTML elemen...
2007-05-12, 5344👍, 0💬

How To Select Some Rows from a Table
How To Select Some Rows from a Table? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements If you don't want select all rows from a table, you can specify a WHERE clause to tell the query to return only the rows that meets the condition defined in the WHERE clause. The following select state...
2007-04-21, 5344👍, 0💬

How To Write a Query with a Full Outer Join
How To Write a Query with a Full Outer Join? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements If you want to query from two tables with a full outer join, you can use the FULL OUTER JOIN ... ON clause in the FROM clause. The following query returns output with a full outer join from two ...
2007-04-19, 5344👍, 0💬

What Happen to Font Sizes with Relative Page Width Units
What Happen to Font Sizes with Relative Page Width Units? - CSS Tutorials - Page Layout and Background Image Design If you set your page width to relative length units like pixels, what will happen to font sizes? Usually, font sizes have absolute length units like point (pt). If you specify font siz...
2007-05-11, 5342👍, 0💬

What are different types of JIT
What are different types of JIT ? Note :- This question can only be asked when the interviewer does not know what he wants. It was asked to me in one of interview and for 15 minutes he was roaming around the same question in order to get answer from me (requirement was for a simple database project)...
2007-10-22, 5340👍, 0💬

What Happens If File Name is Missing in a URL
What Happens If File Name is Missing in a URL? - XHTML 1.0 Tutorials - Understanding Hyper Links and URLs If the file name part is missing in a URL, the one of the following two rules will be used. 1. If a URL has no file name, but a path name is given, the browser will let the hosting computer to s...
2007-05-12, 5339👍, 0💬

What Is a Database Table
What Is a Database Table? - Oracle DBA FAQ - Managing Oracle Database Tables A database table is a basic unit of data logical storage in an Oracle database. Data is stored in rows and columns. You define a table with a table name, such as employees, and a set of columns. You give each column a colum...
2007-05-03, 5339👍, 0💬

How To Execute a Stored Program Unit
How To Execute a Stored Program Unit? - Oracle DBA FAQ - Introduction to PL/SQL If you want to execute a stored program unit, you can use the EXECUTE statement. The example script below shows how to executes a stored program unit: SQL> set serveroutput on; SQL> CREATE PROCEDURE Hello AS 2 BEGIN 3 DB...
2007-04-25, 5339👍, 0💬

How To Append New Data to the End of a File
How To Append New Data to the End of a File? - PHP Script Tips - Reading and Writing Files If you have an existing file, and want to write more data to the end of the file, you can use the fopen($fileName, "a") function. It opens the specified file, moves the file pointer to the end of the file, and...
2007-04-22, 5339👍, 0💬

How To Connect to MySQL from a PHP Script
How To Connect to MySQL from a PHP Script? - PHP Script Tips - Working with MySQL Database If you want access the MySQL server, you must create a connection object first by calling the mysql_connect() function in the following format: $con = mysql_connect($server, $username, $password); If you are c...
2007-04-18, 5339👍, 0💬

What Happens to the Current Transaction If the Session Is Killed
What Happens to the Current Transaction If the Session Is Killed? - Oracle DBA FAQ - Understanding SQL Transaction Management If a session is killed by the DBA, the current transaction in that session will be rolled back and ended. All the database changes made in the current transaction will be rem...
2007-04-18, 5339👍, 0💬

Building Search Engines for Large Volumes of XML Data
How would you build a search engine for large volumes of XML data? The way candidates answer this question may provide insight into their view of XML data. For those who view XML primarily as a way to denote structure for text files, a common answer is to build a full-text search and handle the data...
2007-04-11, 5339👍, 0💬

Walking us through the steps necessary to parse XML documents
Can you walk us through the steps necessary to parse XML documents? Superficially, this is a fairly basic question. However, the point is not to determine whether candidates understand the concept of a parser but rather have them walk through the process of parsing XML documents step-by-step. Determ...
2007-04-11, 5339👍, 0💬

What are benefits and limitations of using Hidden frames?
.NET INTERVIEW QUESTIONS - What are benefits and limitations of using Hidden frames? Following are the benefits of using hidden frames: * You can cache more than one data field. * The ability to cache and access data items stored in different hidden forms. * The ability to access JScript® variable v...
2009-07-14, 5337👍, 0💬

How Does Oracle Handle Read Consistency
How Does Oracle Handle Read Consistency? - Oracle DBA FAQ - Understanding SQL Transaction Management Oracle supports two options for you on how to maintain read consistency: READ WRITE (the default option), also called statement-level read consistency. READ ONLY, also called transaction-level read c...
2007-04-18, 5337👍, 0💬

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