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Inner Class Declared inside a Method
Can an inner class declared inside of a method access local variables of this method? It's possible if these variables are final.
2007-03-03, 5261👍, 0💬

What Is a Result Set Object
What Is a Result Set Object? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts A result set object is a logical representation of data rows returned by mysql_query() function on SELECT statements. Every result set object has an internal pointer used to identify the current row in t...
2007-05-10, 5260👍, 0💬

Can the Query Output Be Sorted by Multiple Columns
Can the Query Output Be Sorted by Multiple Columns? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements You can specifying multiple columns in the ORDER BY clause as shown in the following example statement, which returns employees' salaries sorted by department and salary value: SQL> SELEC...
2007-04-20, 5259👍, 0💬

What Is Oracle
What Is Oracle? - Oracle DBA FAQ - Oracle Basic Concepts Oracle is a company. Oracle is also a database server, which manages data in a very structured way. It allows users to store and retrieve related data in a multiuser environment so that many users can concurrently access the same data. All thi...
2007-04-21, 5258👍, 0💬

What Happens If NULL Values Are Involved in Expressions
What Happens If NULL Values Are Involved in Expressions? - MySQL FAQs - Introduction to SQL Basics If NULL values are used in expressions, the resulting values will be NULL values. In other words: Arithmetic expressions with NULL values result NULL values. Comparison expressions with NULL values res...
2007-05-11, 5257👍, 0💬

How To Join Two Tables in a Single Query
How To Join Two Tables in a Single Query? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements Two tables can be joined together in a query in 4 ways: Inner Join: Returns only rows from both tables that satisfy the join condition. Left Outer Join: Returns rows from both tables that satisfy t...
2007-04-20, 5257👍, 0💬

How To Move Uploaded Files To Permanent Directory
How To Move Uploaded Files To Permanent Directory? - PHP Script Tips - Uploading Files to Web Servers PHP stores uploaded files in a temporary directory with temporary file names. You must move uploaded files to a permanent directory, if you want to keep them permanently. PHP offers the move_uploade...
2007-04-19, 5255👍, 0💬

How can we use Culture Auto in project
How can we use Culture Auto in project? We will make a simple login screen which we will try to use for English as well as Greek. The login screen will display English settings when an English user logs in and Greek Settings when a Greek user logs in. So below are the steps to start with. In the abo...
2007-11-01, 5254👍, 0💬

What Happens If You Use a Wrong Connect Identifier
What Happens If You Use a Wrong Connect Identifier? - Oracle DBA FAQ - Introduction to Command-Line SQL*Plus Client Tool Of course, you will get an error, if you use a wrong connect identifier. Here is an example of how SQL*Plus react to a wrong connect identifier: SQL> CONNECT fyi/retneciyf@WRONG; ...
2007-04-28, 5253👍, 0💬

How to Accessing HTML Elements using javascript?
How to Accessing HTML Elements using javascript? To do something interesting with HTML elements, we must first be able to uniquely identify which element we want. In the example below: &lt;body> &lt;form action=""> &lt;input type="button" id="useless" name="mybutton" value="doNothing" />...
2008-09-23, 5252👍, 0💬

How To Add Images to Backgrounds
How To Add Images to Backgrounds? - CSS Tutorials - HTML Formatting Model: Block, Inline and Floating Elements One image can be specified to the background at a particular position. It can also be repeated in horizontal direction, vertical direction, or both directions with the following style prope...
2007-05-11, 5252👍, 0💬

What Is a SQL*Loader Control File
What Is a SQL*Loader Control File? - Oracle DBA FAQ - Loading and Exporting Data A SQL*Loader control file a text that defines how data files should be loaded into the database. It allows you to specify: Where is the input data file. The format of the input date file. The target table where the data...
2007-04-30, 5252👍, 0💬

How To Create an Initialization Parameter File
How To Create an Initialization Parameter File? - Oracle DBA FAQ - Creating New Database Instance Manually This is Step 3. To run an Oracle database as an Oracle instance, you need to create an initialization parameter file, which contains a set of initialization parameters. The easiest way to creat...
2007-04-22, 5252👍, 0💬

What Are the Restrictions in a READ ONLY Transaction
What Are the Restrictions in a READ ONLY Transaction? - Oracle DBA FAQ - Understanding SQL Transaction Management There are lots of restrictions in a READ ONLY transaction: You can not switch to READ WRITE mode. You can not run any INSERT, UPDATE, DELETE statements. You can run SELECT query statemen...
2007-04-17, 5252👍, 0💬

How Many Ways to Get the Current Time
How Many Ways to Get the Current Time? - MySQL FAQs - Introduction to SQL Date and Time Handling There are 8 ways to get the current time: SELECT NOW() FROM DUAL; 2006-07-01 10:02:41 SELECT CURRENT_TIME() FROM DUAL; 10:02:58 SELECT SYSDATE() FROM DUAL; 2006-07-01 10:03:21 mysql> SELECT CURRENT_TIMES...
2007-05-11, 5250👍, 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, 5249👍, 0💬

What Are Numeric Data Types
What Are Numeric Data Types? - MySQL FAQs - Introduction to SQL Basics MySQL supports the following numeric data types: BIT(n) - An integer with n bits. BOOL same as BOOLEAN - Boolean values stored in 1 bit. TINYINT - A small integer stored in 1 byte. SMALLINT - A small integer stored in 2 bytes. ME...
2007-05-11, 5249👍, 0💬

How To Write a Query with a Left Outer Join
How To Write a Query with a Left Outer Join? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements If you want to query from two tables with a left outer join, you can use the LEFT OUTER JOIN ... ON clause in the FROM clause. The following query returns output with a left outer join from two ...
2007-04-19, 5249👍, 0💬

What Are DDL Statements
What Are DDL Statements? - Oracle DBA FAQ - Understanding SQL DDL Statements DDL (Data Definition Language) statements are statements to create and manage data objects in the database. The are 3 primary DDL statements: CREATE - Creating a new database object. ALTER - Altering the definition of an ex...
2007-04-22, 5247👍, 0💬

What Is SQL
What Is SQL? Structured Query Language (SQL) is the most popular computer language used to create, retrieve, update and delete data from relational database management systems. SQL has been standardized by both ANSI and ISO.
2007-04-15, 5247👍, 0💬

How Nested Block Elements Are Formatted
How Nested Block Elements Are Formatted? - CSS Tutorials - Understanding Multiple Element Formatting Rules If a block element is nested in another block element, the inner block, child block, will be formatted as the content box of the outer block, parent block. The HTML and CSS document below shows...
2007-05-11, 5246👍, 0💬

How White Spaces Are Formatted
How White Spaces Are Formatted? - CSS Tutorials - Understanding Multiple Element Formatting Rules White spaces are formatted depending where they are located: White spaces will be ignored between block elements. White spaces will be preserved in &lt;PRE> tags. White spaces will be collapsed into...
2007-05-11, 5246👍, 0💬

Can we post and access view state in another application
Can we post and access view state in another application? You can post back to any page and pages in another application, too. But if you are posting pages to another application, the PreviousPage property will return null. This is a significant restriction, as it means that if you want to use the v...
2007-10-23, 5245👍, 0💬

What Are SUB and SUP Tags/Elements
What Are SUB and SUP Tags/Elements? - XHTML 1.0 Tutorials - Understanding In-line Elements and Tags "sub" and "sup" elements are inline elements that you can use to specify text to be treated as subscript and superscript respectively. Here are basic rules about "sub" and "sup" elements: "sub" and "s...
2007-05-12, 5244👍, 0💬

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