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What is the difference between declaration and definition?
What is the difference between declaration and definition? The declaration tells the compiler that at some later point we plan to present the definition of this declaration. E.g.: void stars () //function declaration The definition contains the actual implementation. E.g.: void stars () // declarato... 2012-01-25, 3196👍, 0💬

If we run autoconfig which files will get effected ?
If we run autoconfig which files will get effected ? In order to check list of files changes during Autoconfig , you can run adchkcfg utility which will generate HTML report. This report will list all files and profile options going to change when you run AutoConfig. 2011-11-04, 3196👍, 0💬

How do you find the number of rows in a Table ?
How do you find the number of rows in a Table ? select count(*) from table, or from NUM_ROWS column of user_tables if the table statistics has been collected. 2011-11-22, 3194👍, 0💬

What are cursor attributes?
What are cursor attributes? Cursor attributes are used to get the information about the current status of your cursor. Both explicit and implicit cursors have four attributes, as shown: Name Description %FOUND Returns TRUE if record was fetched successfully, FALSE otherwise. %NOTFOUND Returns TRUE i... 2011-11-18, 3193👍, 0💬

What is difference between procedure and function
What is difference between procedure and function A function always returns a value, while a procedure does not. When you call a function you must always assign its value to a variable. 2011-10-25, 3193👍, 0💬

What is a conversion constructor C++?
What is a conversion constructor C++? A constructor that accepts one argument of a different type. 2012-03-16, 3187👍, 0💬

What is difference between AD_BUGS and AD_APPLID_PATCHES ?
What is difference between AD_BUGS and AD_APPLID_PATCHES ? AD_BUGS holds information about the various Oracle Applications bugs whose fixes have been applied (ie. patched) in the Oracle Applications installation. AD_APPLIED_PATCHES holds information about the "distinct" Oracle Applications patches t... 2011-11-09, 3186👍, 0💬

What is a Null object? C++
What is a Null object? C++ It is an object of some class whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a member function that is supposed to return an object with some specified properties but cannot find such an... 2012-01-10, 3183👍, 0💬

What is the difference between Mutex and Binary semaphore?
What is the difference between Mutex and Binary semaphore? semaphore is used to synchronize processes. where as mutex is used to provide synchronization between threads running in the same process. 2012-03-26, 3179👍, 0💬

How do you pass cursor variables in PL/SQL?
How do you pass cursor variables in PL/SQL? Pass a cursor variable as an argument to a procedure or function. You can, in essence, share the results of a cursor by passing the reference to that result set. 2011-10-31, 3178👍, 0💬

Explain term POLIMORPHISM and give an example using eg. SHAPE object: If I have a base class SHAPE, how would I define DRAW meth
Explain term POLIMORPHISM and give an example using eg. SHAPE object: If I have a base class SHAPE, how would I define DRAW methods for two objects CIRCLE and SQUARE Answer1 POLYMORPHISM : A phenomenon which enables an object to react differently to the same function call. in C++ it is attained by u... 2012-02-08, 3177👍, 0💬

What is an incomplete type? C++
What is an incomplete type? C++ Incomplete types refers to pointers in which there is non availability of the implementation of the referenced location or it points to some location whose value is not available for modification. int *i=0x400 // i points to address 400 *i=0; //set the value of memory... 2012-01-06, 3171👍, 0💬

What methods can be overridden in Java?
What methods can be overridden in Java? In C++ terminology, all public methods in Java are virtual. Therefore, all Java methods can be overwritten in subclasses except those that are declared final, static, and private. 2012-03-27, 3168👍, 0💬

Name 7 layers of the OSI Reference Model?
Name 7 layers of the OSI Reference Model? -Application layer -Presentation layer -Session layer -Transport layer -Network layer -Data Link layer -Physical layer 2012-04-13, 3167👍, 0💬

How do you link a C++ program to C functions?
How do you link a C++ program to C functions? By using the extern "C" linkage specification around the C function declarations. 2012-03-12, 3167👍, 0💬

Can main method be declared final?
Can main method be declared final? Yes, the main method can be declared final, in addition to being public static. 2013-07-02, 3163👍, 0💬

Assignment Operator - What is the diffrence between a "assignment operator" and a "copy constructor"?
Assignment Operator - What is the diffrence between a "assignment operator" and a "copy constructor"? Answer1. In assignment operator, you are assigning a value to an existing object. But in copy constructor, you are creating a new object and then assigning a value to that object. For example: compl... 2012-03-30, 3161👍, 0💬

Which recursive sorting technique always makes recursive calls to sort subarrays that are about half size of the original array?
Which recursive sorting technique always makes recursive calls to sort subarrays that are about half size of the original array? Mergesort always makes recursive calls to sort subarrays that are about half size of the original array, resulting in O(n log n) time. 2012-02-21, 3161👍, 0💬

What is Rational Suite?
I found your website in a Google search, after having visited another link in that search, IBM, which had an entire website devoted to Rational Suite. Essentially, all I wanted to know was who the vendor/developer of this software was and what the software did and hopefully get some detailed descrip... 2019-07-20, 3160👍, 0💬

How you will avoid your query from using indexes?
How you will avoid your query from using indexes? By changing the order of the columns that are used in the index, in the Where condition, or by concatenating the columns with some constant values. 2011-12-02, 3155👍, 0💬

What is TWO_TASK in Oracle Database ?
What is TWO_TASK in Oracle Database ? TWO_TASK mocks your tns alias which you are going to use to connect to database. Lets assume you have database client with tns alias defined as PROD to connect to Database PROD on machine teachmeoracle.com listening on port 1521. Then usual way to connect is sql... 2011-11-30, 3154👍, 0💬

What is a pseudo column. Give some examples?
What is a pseudo column. Give some examples? Information such as row numbers and row descriptions are automatically stored by Oracle and is directly accessible, ie. not through tables. This information is contained within pseudo columns. These pseudo columns can be retrieved in queries. These pseudo... 2011-11-23, 3153👍, 0💬

You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc()
You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc() Answer1 1.) “new and delete” are preprocessors while “malloc() and free()” are functions. [we dont use brackets will calling new or delete]. 2.) no need of allocate the m... 2012-02-06, 3152👍, 0💬

Can you be bale to identify between Straight- through and Cross- over cable wiring? and in what case do you use Straight- throug
Can you be bale to identify between Straight- through and Cross- over cable wiring? and in what case do you use Straight- through and Cross-over? Straight-through is type of wiring that is one to connection, Cross- over is type of wiring which those wires are got switched We use Straight-through cab... 2012-03-29, 3151👍, 0💬

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.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