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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

Why would you use a text field as a data type for a postal code?

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Using a text field for a postal code allows for flexibility in accommodating unique formats or international postal code variations. It can also prevent issues with data input validations that may occur with other data types. However, it may require additional data cleaning or validation steps to ensure consistency in data entry.

A chain of hardware stores has databases of purchases.To use these databases in a GIS they must be tied to?

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geographic locations such as addresses or coordinates. By geocoding the purchases' addresses or coordinates, the hardware store databases can be integrated into a GIS for spatial analysis, visualization, and decision-making. This linkage enables the hardware store chain to understand the geographical distribution of purchases and make informed business decisions based on spatial patterns.

What term refers to scattered locations storing the same basic data.?

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The term is "distributed database." It refers to a database system in which data is stored and managed across multiple nodes in a network, allowing for improved scalability, availability, and performance.

What do you notice about the location of the new Data file?

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The new Data file is located in the root directory of the system.

When was Spatial Query Server created?

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Spatial Query Server was created in 2001-12.

What statement is best supported by the data in the map and table?

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The statement best supported by the data in the map and table is that there is a significant disparity in income levels between different states in the United States. This is evident from the variation in median household incomes across states, with some states having much higher incomes than others.

What is Morphological data?

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Morphological data refers to information about the physical characteristics or structures of organisms, such as size, shape, color, and anatomical features. This type of data is used in various scientific fields, including biology, paleontology, and taxonomy, to classify and study living organisms.

Why is it necessary to manipulate data on maps?

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Manipulating data on maps allows for better visualization, understanding, and analysis of the information being represented. It can help to highlight patterns, trends, and relationships that may not be immediately apparent in raw data. Additionally, manipulating data can help make maps more impactful and informative for decision-making and communication purposes.

What is a sentence for sequential?

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The numbers 1, 2, 3, and 4 can be arranged in sequential order.

Name of the location of a particular a piece of data is it?

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The location of a particular piece of data is typically referred to as its memory address. This address is a unique identifier that allows the data to be stored and accessed within a computer's memory.

In a relational schema each tuple is divided into fields called?

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In a relational schema, each tuple is divided into fields called attributes. Each attribute corresponds to a specific piece of data within the tuple.

A chain of hardware stores hahave database of purchased and used these databases in a GIS they must be tied to to what?

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In order to tie the hardware store's database of purchased goods to a GIS, they would need to use some form of location data, such as addresses or GPS coordinates, to link the purchases to specific geographic locations on the map. This will help visualize where the goods are being purchased and used, providing insights into customer behavior and preferences across different store locations.

What are some examples of fragmentation?

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Fragmentation in computer science can refer to physical fragmentation (when files and data are scattered across a disk) or memory fragmentation (when memory becomes divided into small unusable chunks). Fragmentation in ecosystems can occur when habitat patches become isolated, affecting the movement and survival of species. Fragmentation in society can be seen through the segregation of communities or the division of resources based on socioeconomic status.

Advantages of Geographic Filing?

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advantages of geographical filing system

Database Designation Language DBDL is a programming language?

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Not in MS Access 2007.

However it is a Database Design Language.

Different types of SQL language?

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  1. Data Definition Language (DDL): Used to define and modify the structure of database objects like tables, indexes, and views.
  2. Data Manipulation Language (DML): Used to query and manipulate data in tables, such as SELECT, INSERT, UPDATE, and DELETE.
  3. Data Control Language (DCL): Used to control access to data, like granting and revoking permissions.
  4. Transaction Control Language (TCL): Used to manage transactions within a database, like committing or rolling back changes.

What is a digital mapping database in terms of surveying.?

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A digital mapping database in surveying is a collection of spatial data that depicts geographic features and land information. It can include aerial imagery, topographic maps, property boundaries, and infrastructure details. This database helps surveyors analyze and visualize the relationships between different elements on the map for planning, designing, and decision-making purposes.

An automated system for the capture storage retrieval analysis and display of spatial data is known as?

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A Geographic Information System (GIS) is an automated system for capture, storage, retrieval, analysis, and display of spatial data. It integrates various types of data like maps, satellite images, and surveys to help users visualize and understand patterns and trends in geographical data. GIS is widely used in various fields such as urban planning, environmental management, and emergency response.

What are dbms languages?

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DBMS languages are specialized programming languages used to interact with databases. Common DBMS languages include SQL (Structured Query Language) for querying and manipulating data, and PL/SQL (Procedural Language/SQL) for developing procedures and functions within a database system. These languages are designed to facilitate communication with the database management system and perform various operations on the data stored in the database.