.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

<< < … 54 55 56 57 58 59 60 61 62 63 64 … > >>   Sort: Date

What Are HR Tags/Elements
What Are HR Tags/Elements? - XHTML 1.0 Tutorials - Body Tag and Block Level Tags A "hr" element is a block level element that can be used directly as a sub-element in the body element. You can use "hr" elements to specify horizontal rulers. Here are basic rules about "hr" elements: "hr" elements can... 2007-05-12, 5347👍, 0💬

Where Are the Session Values Stored
Where Are the Session Values Stored? - PHP Script Tips - Understanding and Using Sessions When a value is saved into the current session by one PHP page, the PHP engine must stored this value somewhere on Web server, so that the PHP engine can retrieve it back when same visitor comes back to request... 2007-04-18, 5347👍, 0💬

What are queues and stacks
What are queues and stacks ? Queue is for first-in, first-out (FIFO) structures. Stack is for last-in, first-out (LIFO) structures. 2007-10-23, 5346👍, 0💬

How To Add a New Column to an Existing Table
How To Add a New Column to an Existing Table? - Oracle DBA FAQ - Managing Oracle Database Tables If you have an existing table with existing data rows, and want to add a new column to that table, you can use the ALTER TABLE ... ADD statement to do this. Here is an example script: SQL> connect HR/fyi... 2007-05-03, 5346👍, 0💬

What Is a Group Selector
What Is a Group Selector? - CSS Tutorials - Introduction To CSS Basics A group selector selects multiple HTML tags. Group selectors are specified with multiple tags separated with a comma like (tag, tag, tag). For example, the following CSS definition uses a group selector: /* set background color t... 2007-05-11, 5345👍, 0💬

Why it called Struts?
Why it called Struts Because the designers want to remind us of the invisible underpinnings that hold up our houses, buildings, bridges, and ourselves when we are on stilts. This excellent description of Struts reflect the role the Struts plays in developing web applications. 2007-11-28, 5344👍, 0💬

What Is Screen Resolution
What Is Screen Resolution? - CSS Tutorials - Page Layout and Background Image Design Screen resolution is measure by how many graphical points (pixels) per inch or DPI (dots per inch) on a computer system. Screen resolution can be changed within a range on most of today's computer systems. For examp... 2007-05-11, 5344👍, 0💬

How do we get JavaScript onto a web page?
How do we get JavaScript onto a web page? You can use several different methods of placing JavaScript in you pages. You can directly add a script element inside the body of page. 1. For example, to add the "last updated line" to your pages, In your page text, add the following: &lt;p>blah, blah,... 2008-03-25, 5343👍, 0💬

How To Validate an Atom 1.0 Feed File
How To Validate an Atom 1.0 Feed File? - RSS FAQs - Atom Feed Introduction and File Generation If you created an Atom feed file yourself, and want to know if the file meets the Atom 1.0 standards or not, you can validate your feed file using the following methods: Using the on-line validator provide... 2007-05-12, 5343👍, 0💬

Why Cursor Variables Are Easier to Use than Cursors
Why Cursor Variables Are Easier to Use than Cursors? - Oracle DBA FAQ - Working with Cursors in PL/SQL Cursor variables are easier to use than cursors because: Cursor variables are easier to define. No need to give a specific query statement. Cursor variables are easier to open. You can specify the ... 2007-04-28, 5343👍, 0💬

How To Center Your Page in Browser Windows
How To Center Your Page in Browser Windows? - CSS Tutorials - Page Layout and Background Image Design In the previous exercise, the page width is fixed, but the page is not centered. If you want to center your page in the browser window, you can add the CENTER tag before the DIV tag. The following t... 2007-05-11, 5342👍, 0💬

How To Pass a Cursor Variable to a Procedure
How To Pass a Cursor Variable to a Procedure? - Oracle DBA FAQ - Working with Cursors in PL/SQL A cursor variable can be passed into a procedure like a normal variable. The sample script below gives you a good example: CREATE OR REPLACE PROCEDURE FYI_CENTER AS sys_cur SYS_REFCURSOR; PROCEDURE emp_pr... 2007-04-28, 5341👍, 0💬

How To Drop a Stored Function
How To Drop a Stored Function? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions If there is an existing stored function and you don't want it any more, you can remove it from the database by using the DROP FUNCTION statement as shown in the following script example: SQL> CREATE O... 2007-04-25, 5341👍, 0💬

How To Open Standard Output as a File Handle
How To Open Standard Output as a File Handle? - PHP Script Tips - Reading and Writing Files If you want to open the standard output as a file handle yourself, you can use the fopen("php://stdout") function. It creates a special file handle linking to the standard output, and returns the file handle.... 2007-04-23, 5341👍, 0💬

What Are DEL and INS Tags/Elements
What Are DEL and INS Tags/Elements? - XHTML 1.0 Tutorials - Understanding In-line Elements and Tags "del" and "ins" elements are inline elements that you can use to specify text to be treated as deleted text and inserted text respectively. Here are basic rules about "del" and "ins" elements: "del" a... 2007-05-12, 5340👍, 0💬

How To Assign a Table Row to a RECORD Variable
How To Assign a Table Row to a RECORD Variable? - Oracle DBA FAQ - Working with Database Objects in PL/SQL If you have a table, and want to assign a data row of that table to a RECORD variable, you need to define this RECORD variable to match the table column structure, then use the SELECT ... INTO ... 2007-04-27, 5340👍, 0💬

What Are the Oracle Built-in Data Types
What Are the Oracle Built-in Data Types? - Oracle DBA FAQ - Understanding SQL Basics There are 20 Oracle built-in data types, divided into 6 groups: Character Datatypes - CHAR, NCHAR, NVARCHAR2, VARCHAR2 Number Datatypes - NUMBER, BINARY_FLOAT, BINARY_DOUBLE Long and Row Datatypes - LONG, LONG RAW, ... 2007-04-24, 5340👍, 0💬

How To Use Values from Other Tables in UPDATE Statements
How To Use Values from Other Tables in UPDATE Statements? - Oracle DBA FAQ - Understanding SQL DML Statements If you want to update values in one with values from another table, you can use a subquery in the SET clause. The subquery should return only one row for each row in the update table that ma... 2007-04-21, 5340👍, 0💬

Differences between Process and Thread
What is the difference between Process and Thread? A process can contain multiple threads. In most multithreading operating systems, a process gets its own memory address space; a thread doesn't. Threads typically share the heap belonging to their parent process. For instance, a JVM runs in a single... 2007-03-03, 5340👍, 0💬

How To Write an Inner Join with the WHERE Clause
How To Write an Inner Join with the WHERE Clause? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements If you don't want to use the INNER JOIN ... ON clause to write an inner join, you can put the join condition in the WHERE clause as shown in the following query example: SQL> SELECT d.depar... 2007-04-19, 5339👍, 0💬

How Arrays Are Passed Through Arguments
How Arrays Are Passed Through Arguments? - PHP Script Tips - Creating Your Own Functions Like a normal variable, an array is passed through an argument by value, not by reference. That means when an array is passed as an argument, a copy of the array will be passed into the function. Modifying that ... 2007-04-24, 5338👍, 0💬

How To Use Existing Values in UPDATE Statements
How To Use Existing Values in UPDATE Statements? - Oracle DBA FAQ - Understanding SQL DML 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 represented by columns in ... 2007-04-21, 5338👍, 0💬

How To Start an Oracle Instance
How To Start an Oracle Instance? - Oracle DBA FAQ - Creating New Database Instance Manually This is Step 6. Now you are ready to start the new Oracle Instance without any database. This instance will be used to create a database. Starting an instance without database can be done by using STARTUP NOM... 2007-04-23, 5336👍, 0💬

Can Group Functions Be Mixed with Non-group Selection Fields
Can Group Functions Be Mixed with Non-group Selection Fields? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements 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... 2007-04-20, 5336👍, 0💬

<< < … 54 55 56 57 58 59 60 61 62 63 64 … > >>   Sort: Date

.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