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How To Run SQL Functions in PL/SQL
How To Run SQL Functions in PL/SQL? - Oracle DBA FAQ - Working with Database Objects in PL/SQL Of course, you can run SQL functions in SQL statements. But many SQL functions can also be executed in regular PL/SQL statements, as shown in the following sample script: DECLARE now DATE; id NUMBER; str V...
2007-04-27, 5850👍, 0💬

Externalizable Interface: readExternal() and readExternal()
How many methods in the Externalizable interface? There are two methods in the Externalizable interface. You have to implement these two methods in order to make your class externalizable. These two methods are readExternal() and readExternal().
2007-03-03, 5850👍, 0💬

How To Quote Text Values in SQL Statements
How To Quote Text Values in SQL Statements? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts Text values in SQL statements should be quoted with single quotes ('). If the text value contains a single quote ('), it should be protected by replacing it with two single quotes (''). In...
2007-05-11, 5849👍, 0💬

What Is a Connect Identifier
What Is a Connect Identifier? - Oracle DBA FAQ - Introduction to Command-Line SQL*Plus Client Tool A "connect identifier" is an identification string of a single set of connection information to a specific target database instance on a specific Oracle server. Connect identifiers are defined and stor...
2007-04-28, 5848👍, 0💬

What Happens If a JUnit Test Method Is Declared to Return "String"
What Happens If a JUnit Test Method Is Declared to Return "String"? If a JUnit test method is declared to return "String", the compilation will pass ok. But the execution will fail. This is decause JUnit requires that all test methods must be declared to return "void". For example: type HelloTestNon...
2008-01-24, 5847👍, 0💬

What is the difference WCF and Web services?
What is the difference WCF and Web services? Web services can only be invoked by HTTP. While Service or a WCF component can be invoked by any protocol and any transport type. Second web services are not flexible. But Services are flexible. If you make a new version of the service then you need to ju...
2007-11-04, 5846👍, 0💬

What is basic use of “DataView”
What is basic use of “DataView” ? “DataView” represents a complete table or can be small section of rows depending on some criteria. It is best used for sorting and finding data with in “datatable”. Dataview has the following method’s Find It takes a array of values and returns the index of the r...
2007-10-24, 5846👍, 0💬

How can I show the entire validation error message in a message box on the client side
How can I show the entire validation error message in a message box on the client side? In validation summary set “ShowMessageBox” to true.
2007-10-24, 5843👍, 0💬

What Is SQL*Loader
What Is SQL*Loader? - Oracle DBA FAQ - Loading and Exporting Data SQL*Loader is a database tool that allows to load data from external files into database tables. SQL*Loader is available as part of the free Oracle 10g Expression Edition. It has some interesting features as: Can load data from multip...
2007-04-30, 5843👍, 0💬

Serializable Interface
How many methods in the Serializable interface? There is no method in the Serializable interface. The Serializable interface acts as a marker, telling the object serialization tools that your class is serializable.
2007-03-03, 5842👍, 0💬

What Is a Required Attribute
What Is a Required Attribute? - XHTML Tutorials - Introduction To Tag and Attribute Syntax A required attribute is an attribute required by the XHTML element. When you write an XHTML element, you must include all attributes required by this element in the opening tag. Optional attributes can be omit...
2007-05-12, 5840👍, 0💬

What Are the Main Differences between Atom 1.0 and RSS 2.0
What Are the Main Differences between Atom 1.0 and RSS 2.0? - RSS FAQs - Introduction to RSS (Really Simple Syndication) Basics Main differences between Atom 1.0 and RSS 2.0: Atom has separate "summary" and "content" elements, while RSS only has one "description" element. Atom standardizes auto-disc...
2007-05-12, 5840👍, 0💬

How To Insert Multiple Rows with One INSERT Statement
How To Insert Multiple Rows with One INSERT Statement? - Oracle DBA FAQ - Understanding SQL DML Statements If you want to insert multiple rows with a single INSERT statement, you can use a subquery instead of the VALUES clause. Rows returned from the subquery will be inserted the target table. The f...
2007-04-21, 5838👍, 0💬

What is the difference between System exceptions and Application
What is the difference between System exceptions and Application exceptions? All exception derives from Exception Base class. Exceptions can be generated programmatically or can be generated by system. Application Exception serves as the base class for all applicationspecific exception classes. It d...
2007-10-22, 5834👍, 0💬

How To Place Comments in PL/SQL
How To Place Comments in PL/SQL? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are two ways to place comments into PL/SQL codes: SQL Statement Style: Starts you comment any where in the line but prefixed with '--'. The comment ends at the end of the line. C Language Style: Starts you...
2007-05-01, 5834👍, 0💬

Overriding JSP Server Generated Servlet Subclass
How do I have the JSP-generated servlet subclass be my own custom servlet class, instead of the default? One should be very careful when having JSP pages extend custom servlet classes as opposed to the default one generated by the JSP engine. In doing so, you may lose out on any advanced optimizatio...
2007-04-03, 5834👍, 0💬

Can we sign a satellite assembly
Can we sign a satellite assembly? Yes you can sign the satellite assembly using the /keyfile switch which takes “.snk” file as the input parameter. al /res:MyLanguage.resources /c:de /keyfile:MyLang.snk out:MyLanguages.resources.dll
2007-11-02, 5833👍, 0💬

What is marshalling and what are different kinds of marshalling
What is marshalling and what are different kinds of marshalling ? Marshaling is used when an object is converted so that it can be sent across the network or across application domains. Unmarshaling creates an object from the marshaled data. There are two ways to do marshalling :- ã Marshal-by-valu...
2007-10-23, 5833👍, 0💬

What Is Wrong with My &lt;meta&gt; Tags
What Is Wrong with My &lt;meta&gt; Tags? - XHTML Tutorials - Introduction To Tag and Attribute Syntax If you are converting existing HTML documents to XHTML format, you may find some &lt;meta&gt; tags are written as: &lt;meta name="Author" content="FYICenter.com"&gt ;&lt;...
2007-05-12, 5833👍, 0💬

How To Split a String into Pieces
How To Split a String into Pieces? - PHP Script Tips - PHP Built-in Functions for Strings There are two functions you can use to split a string into pieces: explode(substring, string) - Splitting a string based on a substring. Faster than split(). split(pattern, string) - Splitting a string based on...
2007-04-21, 5833👍, 0💬

What Is a Dead Lock
What Is a Dead Lock? - MySQL FAQs - Transaction Management: Commit or Rollback A dead lock is phenomenon happens between two transactions with each of them holding a lock that blocks the other transaction as shown in the following diagram: (transaction 1) (transaction 2) update row X to create lock ...
2007-05-09, 5830👍, 0💬

How To Invoke the Data Pump Export Utility
How To Invoke the Data Pump Export Utility? - Oracle DBA FAQ - Loading and Exporting Data The Data Pump Export utility is distributed as executable file called "expdp.exe". To invoke this utility, you should go to the "bin" directory of your Oracle server installation and run the "expdp" command. He...
2007-05-01, 5826👍, 0💬

How To Read a File in Binary Mode
How To Read a File in Binary Mode? - PHP Script Tips - Reading and Writing Files If you have a file that stores binary data, like an executable program or picture file, you need to read the file in binary mode to ensure that none of the data gets modified during the reading process. You need to: Ope...
2007-04-23, 5824👍, 0💬

How To Delete Existing Rows in a Table
How To Delete Existing Rows in a Table? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts If you want to remove a row from a table, you can use the DELETE statement with a WHERE clause to identify the row. The following sample script deletes one row: &lt;?php include "mysql_con...
2007-05-11, 5822👍, 0💬

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