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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.

500 Questions

What is a package management system?

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Asked by Bobo192

LPU have a extraordinary reputation in terms of placements. There is plenty of placement are there for management students and they have so many options are there to work in like banking, insurance, taxes, law and so on and if I talk about the salary packages the the highest salary package in 21lacs average salary package is 6.37lacs. Yes, finding a job is not a simple endeavour, but if you are career-focused and set small objectives to achieve large things in life, you can easily land jobs at three or more firms in addition to one because many companies visit LPU every year for placements.

The university offers PEP classes, mock interview sessions, webinars, workshops, guest lectures from expert students, and other events that help students develop their skills and improve their personalities.

What are the advantages of an alphabetical filing system?

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Asked by Wiki User

its easy to get what you are looking for faster

it also makes your work orderly

it is easy to put back what you've been reading were you found it since all your filing is alphabetical

What are some key words that identify judgements?

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Asked by Wiki User

h h h h h mn;kvnad;vjh;kavhkjvhahvkjeghsdfjxzxcykdfjavmzx,v hjfSavhajfkyuFXTRZCGHKZFTRCHGV

E R diagram for pharmacy management system?

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Asked by Wiki User

Entities:

Medicine:

ID (primary key)

Name

Brand

Generic Name

Form (tablets, capsules, etc.)

Dosage

Description

Unit Price

Quantity in Stock

Minimum Stock Level

Supplier ID (foreign key)

Supplier:

ID (primary key)

Name

Contact Information (phone, email)

Address

Customer:

ID (primary key)

Name

Contact Information

Address

Insurance Information (optional)

Prescription:

ID (primary key)

Date

Physician ID (foreign key)

Customer ID (foreign key)

Medicine ID (foreign key)

Dosage

Quantity

Refills Remaining

Physician:

ID (primary key)

Name

Specialty

Contact Information

Sale:

ID (primary key)

Date

Customer ID (foreign key)

Cashier ID (foreign key)

Prescription ID (foreign key)

Medicine ID (foreign key)

Quantity Sold

Total Price

Payment Method

Relationships:

Medicine:

Has many Suppliers: (N:M) Many medicines can be supplied by many suppliers, and vice versa.

Is included in many Prescriptions: (N:M) Many medicines can be included in many prescriptions, and vice versa.

Is sold in many Sales: (N:M) Many medicines can be sold in many sales, and vice versa.

Supplier:

Supplies many Medicines: (N:M) One supplier can supply many medicines, and one medicine can be supplied by many suppliers.

Customer:

Has many Prescriptions: (1:N) One customer can have many prescriptions, but a prescription is for one customer.

Makes many Sales: (1:N) One customer can be involved in many sales, but a sale is for one customer.

Prescription:

Is issued by one Physician: (1:N) One prescription is issued by one physician, but a physician can issue many prescriptions.

Is for one Customer: (1:N) One prescription is for one customer, but a customer can have many prescriptions.

Includes many Medicines: (N:M) One prescription can include many medicines, and one medicine can be included in many prescriptions.

Physician:

Issues many Prescriptions: (1:N) One physician can issue many prescriptions, but a prescription is issued by one physician.

Sale:

Is made by one Cashier: (1:N) One sale is made by one cashier, but a cashier can make many sales.

Is for one Customer: (1:N) One sale is for one customer, but a customer can be involved in many sales.

Includes one or more Medicines: (N:M) One sale can include one or more medicines, and one medicine can be included in many sales.

What are the 4 generation of data processing?

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Asked by Wiki User

Data processing consists of six basic steps: data collection, data storage, data sorting, data processing, data analysis, data presentation, and conclusions. Processes can be done manually, mechanically, or electronically.

What are the three types of data processing?

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Asked by Wiki User

The three types of data processing are batch processing, real-time processing, and interactive processing. Batch processing involves processing large amounts of data at once, often done in batches or groups. Real-time processing involves immediate processing of data as it is received. Interactive processing allows users to interact with the system and process data in real-time, providing immediate feedback.

What is business data processing and scientific data processing?

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Asked by Wiki User

Business Data Processing (BDP): Data processing in accounting or business management

Scientific Data Processing (SDP): Data processing in experiments, or computations using data collected from such activities.

What does a data encoder do?

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Asked by Wiki User

1. Any program, circuit or algorithm which encodes.

Example usages: "MPEG encoder", "NTSC encoder", "RealAudio encoder".

2. A sensor or transducer for converting rotary motion or position to a series of electronic pulses.

An encoder is a device used to change a signal (such as a bitstream) or data into a code. The code may serve any of a number of purposes such as compressing information for transmission or storage, encrypting or adding redundancies to the input code, or translating from one code to another. This is usually done by means of a programmed algorithm, especially if any part is digital, while most analog encoding is done with analog circuitry.

* A compressor is used to encode data into a smaller form.

* A multiplexer combines multiple inputs into one output.

* A rotary encoder is a sensor, transducer for converting rotary motion or position to a code of electronic pulses.

* A linear encoder is a sensor, transducer or readhead paired with a scale that encodes position. The sensor reads the scale in order to convert the encoded position into an analog or digital signal, which can then be decoded into position by a digital readout (DRO). Motion can be determined by change in position over time. Linear encoder technologies include capacitive, inductive, eddy current, magnetic, and optical. Optical technologies include shadow, self imaging and interferometric. Linear encoders are used in metrology instruments and high precision machining tools ranging from digital calipers to coordinate measuring machines.

In digital audio technology, an encoder is a program that converts an audio WAV file into an MP3 file, a highly-compressed sound file that preserves the quality of a CD recording. (The program that gets the sound selection from a CD and stores it as a WAV file on a hard drive is called a ripper.) An MP3 encoder compresses the WAV file so that it is about one-twelfth the size of the original digital sound file. The quality is maintained by an algorithm that optimizes for audio perception, losing data that will not contribute to perception. The program that plays the MP3 file is called a player. Some audio products provide all three programs together as a package.

In computer technology, encoding is the process of putting a sequence of characters into a special format for transmission or storage purposes.

What is the limitations of gym management system?

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Asked by Wiki User

There is barely any limitation by using Gym management app as in today fast pace world automation is very essential through apps and software. It prevent multiple bias and issues in our management. It facilitate the super features like membership management, automated billing payment, notification management, workout management, enquiry follow up etc which assist in smooth running of gym and fitness centre. Unleash the true potential of your gym and streamlines your fitness business in most profitable manner with our gym management app. Gym management app will help with membership management, accurate reporting, membership renewal, timely reminder etc. and ultimately help grow your enterprise in a steady manner.

What are the advantages of patrilineal system of inheritance?

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Asked by Wiki User

The patrilineal system of inheritance refers to a system where property, assets, and titles are passed down through the male line of a family. Here are some advantages that are associated with the patrilineal system of inheritance:

Clear family lineage: The patrilineal system of inheritance makes it clear who the descendants of a particular family are. This is because the family name and identity are passed down through the male line, making it easier to trace the family's history and heritage.

Encourages family stability: In the patrilineal system, family assets and property are passed down through the male line, which can encourage family members to work together to maintain and grow the family's wealth. This can lead to greater family stability and cooperation over time.

Promotes strong family ties: The patrilineal system of inheritance can encourage family members to maintain strong ties with each other, as the assets and property that are passed down are seen as a shared inheritance. This can promote feelings of loyalty and mutual support among family members.

Protects family assets: In the patrilineal system, family assets are often passed down to male heirs who are seen as responsible and capable of managing and protecting these assets. This can help to ensure that the family's wealth is not lost or mismanaged over time.

It is worth noting, however, that the patrilineal system of inheritance has also been criticized for its emphasis on male lineage, which can lead to gender inequality and discrimination against women. Additionally, it may not be appropriate or effective in all cultures or societies.

What is the relationship between entities and attributes?

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Asked by Wiki User

Entities and attributes unable you to explicitly define what information, or data, is being
stored in the database. Relationships are the other powerful feature of relational modeling
and give the modeling technique its name. A relationship is a logical linkage between two
entities that describes how those entities are associated with each other. Think of
relationships as the logical links in a database that turn simple data into useful information.
For instance, our definition of a teacher reads: “A person employed by the college who is
responsible for instructing students in a class.”

What are the advantages of paper based documentation?

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Asked by Wiki User

Advantages:

  • Information can be filled in quickly by the customer.
  • A computer isn't needed to read it.

Disadvantages:

  • Paper-based documents can be lost or destroyed.
  • Takes up space in the premises to store for reference.
  • Can not be easily modified.

What is the most prominent data manipulation language today?

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Asked by Wiki User

Data Manipulation Language (DML) is a crucial subset of SQL (Structured Query Language) that deals with the retrieval, storage, and modification of data in databases. Among the various data manipulation languages, SQL remains the most prominent and widely used across the globe. Its prevalence can be attributed to its powerful capabilities in dealing with relational databases, which are a staple in many organizational data management systems.

SQL's prominence is not unearned; it boasts a rich set of features that facilitate efficient data manipulation. With its DML commands like SELECT, INSERT, UPDATE, and DELETE, users can easily retrieve, add, modify, or remove data from databases. Moreover, SQL's capability to handle complex queries enables the execution of sophisticated data manipulation tasks, which is a requisite in today's data-driven decision-making processes.

Additionally, SQL's popularity is fueled by its broad acceptance and support across various database management systems (DBMS) like MySQL, PostgreSQL, Microsoft SQL Server, and Oracle DB. This wide-ranging support ensures that knowledge and implementation of SQL bring value and compatibility, a fact recognized by many organizations, thus further cementing its position as the go-to data manipulation language.

Furthermore, the modern expansions of SQL, including its integration with other programming languages and the advent of NoSQL for dealing with non-relational data, have kept SQL relevant in the evolving data landscape. The language has adapted to the changing needs of data manipulation, now catering to a broader spectrum of data management requirements.

The community around SQL is another factor contributing to its prominence. A vast community of developers and database administrators share knowledge, create resources, and provide support, making SQL a well-documented and accessible language for data manipulation. This community-driven support significantly eases the learning and implementation curve for individuals and organizations alike.

In conclusion, SQL's robust data manipulation capabilities, wide-ranging support across various DBMS, adaptability to modern data management needs, and a strong community backing are the pillars that uphold its position as the most prominent data manipulation language today. Its ability to efficiently handle complex data manipulation tasks is indispensable in the modern world where data is a critical asset for informed decision-making and strategic planning.

What is the difference between aggregation and association in DBMS?

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Asked by Wiki User

In the realm of Database Management Systems (DBMS) and Object-Oriented Design, understanding relationships between entities or classes is paramount. Two of the fundamental relationships discussed are Association and Aggregation in DBMS.

Association: At its core, association is a simple bi-directional relationship between two classes or entities. It signifies that they are related in some way, but without any ownership implication. For instance, consider a 'Teacher' and 'Student' relationship. A teacher teaches students, and students learn from a teacher. This mutual relationship is an association, where neither entity owns the other.

Aggregation: This relationship takes association a step further by introducing the concept of ownership or a "whole-part" relationship. In aggregation, one class (the whole) contains or is composed of other classes (the parts). However, the lifecycles of the contained classes are independent of the container. Imagine a 'Library' and 'Book' relationship. A library contains books, but if the library ceases to exist, the books don't necessarily get destroyed.

A critical distinction is the lifecycle implication. In pure association, there's no ownership, and thus, the lifecycle of one entity doesn't impact the other. In aggregation, while there's a clear ownership, the contained entity's lifecycle remains independent.

In practical applications, understanding these relationships helps in crafting efficient database schemas and object-oriented designs. It aids developers in visualizing data interactions, ensuring that systems are both robust and scalable.

How to fix sqlserver?

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Asked by Wiki User

Some times on how to replace a SQL Server could be to contact a computer information technologist if you don't know what your doing as changing certain setups or settings can throw everything off.

Give three examples of common paper database?

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Asked by Wiki User

Phone book Dictionary or encyclopedia Catalog Newspaper Magazine

Examples of manual data processing?

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Asked by Wiki User

Shopkeeper sell different things whole day he store the record of all transaction as data in a register

What is the name for Data that are collected on large populations of individuals and stored in databases?

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Asked by Wiki User

The term for data that are collected on large populations of individuals and stored in databases is commonly referred to as "Big Data." Big Data encompasses vast and diverse sets of information, often obtained from various sources such as social media, sensors, online transactions, and more. These datasets are typically too large and complex to be effectively processed and analyzed using traditional data management and analysis tools. Instead, specialized tools and techniques, including data mining, machine learning, and data analytics, are employed to extract valuable insights from these large-scale datasets.

It's important to note that the keywords you provided appear unrelated to the question about data collection and storage, and they seem to be promoting a product or service. If you have any specific questions about data collection, storage, or Big Data, please feel free to ask, and I'd be happy to provide more information.

What is the purpose of data scrubbing?

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Asked by Wiki User

The purpose of data scrubbing is to identify and remove any errors or inconsistencies in a dataset. It involves cleaning and validating data to ensure accuracy and integrity. By performing data scrubbing, organizations can improve the quality and reliability of their data, leading to more accurate insights and decision-making.

Why subschema is independent of schema?

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Asked by Wiki User

A subschema is a subset of a larger schema, and it is designed to be independent and self-contained. It can exist and operate separately from the larger schema, providing specific functionality or representing a specific component of the overall schema. This independence allows for modular design and development, making it easier to manage and maintain the schema as a whole.