SQL and Relation Databases - Reading Assignment

  1. A row is a data set representing a single item: records.
  2. A column is a data set of values of a particular simple type: attributes.
  3. A table is a set of columns and rows with a data sharing the same attributes.
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  1. What is a row?
    A. Row is a Record, a data set representing a single item.
  2. What is a column?
    A. Column is an Attribute or field, a labeled element of a tuple.
  3. What is a table?
    A. Table is a Relation or Base relvar, a set of tuples sharing the same attributes i.e a set of columns and rows
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  1. What is a row?
    A row is a data set representing a single item
  2. What is a column?
    A labelled element of a tuple (attribute)
  3. What is a table?
    A table consists of multiple tuples sharing the same attribute; a set of columns and rows

Are these somehow different from the rows, columns and tables of an Excel Spreadsheet ?

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  1. What is a row?

A row is used for keeping record of data set representing a single item

  1. What is a column?

A column is a set or combination of elements of information.

  1. What is a table?

A table is a whole relation or set of all data accumulated.

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  1. data set of a single item
  2. a labeled element of a tuple eg: age, date of birth
  3. a set of columns and rows, a set of tuples sharing the same attributes
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We can said that is the same from the human perspective, for the machines, is just more data to process in certain way.

If you have any more questions, please let us know so we can help you! :slight_smile:

Carlos Z.

  1. What is a row?
    It’s a data set that represents a single item.

  2. What is a column?
    It provides the element of a row, like attributes.

  3. What is a table?
    A set of columns and rows sharing the same elements.

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Row is a set of recorded data (or given) of a single item of various kind

Column indicates which data it refers to, attribute, or field.

Table express the relations

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What is a row?

A data set representing a single item, row is also called record and it can be a user.

What is a column?

A labeled element of a tuple e.g. “Adress, Age, Sex” of a user. Column is an attribute of a record

What is a table?

A table contain rows and columns, table 1 contain information about different things and table 2 also contain information unlike from table 1 table 2 contain another information. To make it short table contains ROWS and COLUMNS.

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  1. Data that represents a single item lika a name
  2. Column is an atribut thwt relates to the row, like a hight of the name
    3 a table is a collection or a set of both, row and columns
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Centralized IT Infrastructure

SQL and Relational Databases - Reading Assignment

What is a row?

Each row in a database table represents one instance of the type of object described in that table. A row is also called a record .

What is a column?

The columns in a table are the set of facts that we keep track of about that type of object. A column is also called an attribute or field. Also referred to as a labeled element of a tuple (a tuple lets us “chunk” together related information and use it as a single thing).

What is a table?

A database table is just that, a table with rows and columns. Different tables contain information about different types of things (a set of tuples sharing the same attributes; a set of columns and rows). Also reffered to as Relation or Base relvar.

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  1. What is a row?
    A row is a set of related data attributes and metrics.
  2. What is a column?
    A column represents a specific attribute or metric within a row.
  3. What is a table?
    A table consists of a set of records (rows) all having the same columns.
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1- A row is a record, which is a data set representing a single item. It can also be called a tuple.
2- A column is an attribute or field, which is a labeled element of a tuple such as “Address” or “Date of Birth.”
3- A table is a set of tuples (rows) sharing the same attributes AKA- a set of columns and rows, which can also be called a relation or base relvar in relational database terms.

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Excellent answers sir, well documented! Please keep them like that :muscle:

Carlos Z.

https://en.wikibooks.org/wiki/Introduction_to_Information_Technology/Relational_Databases

  1. What is a row?
    – A row is a record in the database. A data set representing a single item

  2. What is a column?
    – A column is a characteristic, attribute, or field. A labeled element of a row. e.g. Address or DOB

  3. What is a table?
    – A set of rows sharing the same attributes or columns

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  1. row = a data set which is a single item
  2. column = an element of a tuple
  3. Table= a set of tuples (consisting of columns and rows
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  1. Entry in the database representing single item
  2. a labeled element of a row
  3. Set of rows and columns
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1 Roe or also Record is a data set representing a single item on a table
2 Columns or field are tables with set of facts so we can do follow up
3 Table is a Table with columns and rows that in whole create a table

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  1. What is a row?

its an SQL term defining a data set (columns) for a single item

  1. What is a column?

A column is an attribute or field (ie. height, temperature)

  1. What is a table?

a set of tuples that share the same attribute (ie. an excel spreadsheet with lines and columns of data)

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  1. A row is a record.
  2. A column is an attribute.
  3. A table is a set of columns and rows.
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