answersLogoWhite

0

📱

Database Programming

Databases are collections of tables that maintain and display information, often collaboratively; this information can be used for interaction with an application or gaining general knowledge. Questions about database engines and modifying or using them belong in this category.

8,803 Questions

What is the type of field is used for money value in access?

Dear Sir,

Currency is used as a type of field for money values in access.

Dev

What are the 4 phases of the therapeutic process?

ADLER THERAPEUTIC PROCESS

PHASE 1: Establishing the Relationship

PHASE 2: Exploring the Individual's Dynamic

PHASE 3: Encouraging Self-Understanding and Insight

PHASE 4: Helping with Reorientation

What is calculated control in Access?

It contains data that has been calculated from other data. So it could be a text box that shows a total of two numbers in two other text boxes for example.

Give 5 functions of a store?

1. display stock, 2. set an ambient atmosphere for consuming, 3. sell, sell, sell 4. transact with buyers 5. after sales service

What is Efficiency of Binary Search tree operations?

If it is an unbalanced binary tree, O( ln( n ) / ln( 2 ) ) is best-case. Worst case is O( n ).

If it is balanced, worst case is O( ln( n ) / ln( 2 ) ).

Is it possible to access databases through C-CPP and if so how?

Most database vendors offer an API for this purpose. The usage will vary by vendor, but generally you open a connection, query (or runcommand), check or step through results, close connection. In the MS Windows environment, you can also use ODBC (Open Database Connectivity), which is an API that abstracts (no, its not C++ classes) the database, its tables, and its query language. You still have to install a vendor specific ODBC driver, and a vendor specific database client, so you still need to consult the vendor documentation. The procedure is similar to the non ODBC solution - you open the connection, query it, step through the results cursor, and close the connection.

How does information differ from data?

Data is just a set of random information without organization - Information is data that is organized in a way to make it useful and actionable.

What is PLPA dataset in mainframe?

pageable link pack area (PLPA)

An element of MVS/ESA virtual storage. This area contains supervisor call routines, access methods, and other read-only system programs along with read-only reenterable user programs selected by an installation to be shared among users of the system. Optional functions or devices selected by an installation during system generation add additional modules to the PLPA.

What is the data type of a file?

Files don't have a data type. Functions, classes, enumerations and variables are all examples of data types. We may use a stream to represent a file, but a stream is no more a file than a file is a stream. A stream is merely an abstraction that can be used to represent any device that requires buffered input and/or output of character sequences.

What is field-based indexing?

Field indexing is a form of indexing that makes unique identification of documents possible and retrieval easier. They may identify documents by their creation date, time, and creator, as well as by fields involving a controlled vocabulary.

What is a database union?

In SQL (the Structured Query Language), the language used to access databases, a UNION is the joining of several unrelated queries into a single result set. As a trivial example:

SELECT FirstName, LastName FROM Contacts UNION

SELECT FirstName, LastName FROM Leads

In this case, you are looking for all contacts' and leads' first names and last names.

How to get xml from postgresql?

I too have had this question. In my research, I have come accross pages that indicate XML support is currently under development. There is a patch for PostgreSQL version 8.2.1 found here : http://chernowiki.ru/94.html

Version 8.3 of PostgreSQL already has this functionality. I have only just downloaded this patch myself.

I am not able, at this time, to give a full answer. I can only redirect you to this link :

http://wiki.postgresql.org/wiki/XML_Support

If someone has already figured out a full answer, feel free to contribute.

( Be advised, the links given above are valid at the time of this writing. Your milage my vary. )

What is processes and systems?

The question is vague, but a process in reference to a database usually involves 1-x transactions and completes some predefined amount of work. A transaction is the smallest unit of work that is complete in the database scheme of things. The system is even larger than the process and usually covers a complete area of business and contains many processes.

How do you connect oracle with c?

You'll have to get the object code to link in some of the utilities.

What is the difference between a Database and a Data Structure?

A data structure is the internal representation of the data. It may be a list, a linked list, a stack, heap or just about anything else that can be immagined and represented internal to the machine. For example, the data structure may be a linked list of control blocks for a specific product that is progressing through an automated machining facility. The control block may include information regarding the product, the tolerances, date/time that the product entered the different machining centers and the inspectors who verified the product at different points along the way. The data structure (control block) may or may not be stored in a database during the manufacturing process. Some application engineers may determine that the data needs to remain in memory to address real-time issues and for speed concerns. On the other hand, the data may be handed off to a database application for archiving. A well defined database links the similar data elements together and provides lookup "keys" that allow subsequent users to view and manipulate the data.

What is role of statistic in management?

Considering the abundance of data accessible, statistics provide managers more confidence in dealing with uncertainty, allowing them to make better decisions more rapidly and provide more solid leadership to those who rely on them.

What is Idle?

Idle is when the computer is on, but it is not in use at that time. For example, were you using the computer, then stopped for a period (you made no key depressions or the like), your computer then becomes idle. Just consider it as if it were a car; if you start your car and leave it in park, then your car is idle (its on but not in use). Were u to put your car in drive, it would no longer b idle (the same can be said with a computer if u make a key depression). Hope this helps. == idle== lazy ===