SQL and Relation Databases - Reading Assignment

Blockchain Business Course
#442
  1. A row is a collection of fields that make up a record.
  2. A column is a set of data values of a particular simple type, one value for each row of the database.
  3. A table is a collection of related data held in a table format within a database. It consists of columns and rows. A table has a specified number of columns, but can have any number of rows.
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#443
  1. What is a row?
    A data set representing a single item
  2. What is a column?
    A labeled element of a tuple, e.g. “Address” or “Date of birth”
  3. What is a table?
    A set of tuples sharing the same attributes; a set of columns and rows
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#444
  • What is a row?

A dataset representing a single item.

  • What is a column?

A labelled element of a tuple e.g name, hair colour

  • What is a table?

A set of tuples sharing the same attributes , a set of columns and rows.

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#445

1)a data set representing a single item
2)a labeled element of a tuple
3)a set of rows and columns

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#446
  1. What is a row?
    A row is a dataset which contains the attributes
  2. What is a column?
    A column contains a list of one attribute of a selection of datssets
  3. What is a table?
    A set of clolums and rows representing selected/filtered datsets with selected/filtered attributes
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#447
  1. Dataset representing a single item
  2. Labeled element of tuple
  3. A set of tuple sharing the same attributes
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#448

  1. A row is the SQL term for a record in the relational database term represents a data set representing a single item, for instance a name.

  2. A column is the SQL term for an attribute or field is a labeled element of a tuple, for instance an address, date of birth, height or weight.

  3. A table is the SQL term for a relation which cross references a set of tuples sharing the same attributes; a set of columns and rows

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#449
  1. What is a row?
    A row represents a record within a database- a data set representing a single item. This could simply be the entry of a persons “name” within the database.
  2. What is a column?
    A column represents an attribute or a field within a database- a labeled element of a tuple. This provides more information related to the “name” from the row. It can contain age, e-mail, address, etc.
  3. What is a table?
    A table is a relation that is a set of tuples sharing the same attributes consisting of columns and rows.
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#450

Row: record, data set representing a single item
Column: Attribute or field, labeled elemnet of a tuple.
Table: Relation or base relvar, set of truples sharing same attributes; set of columns or rows.

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#451
  1. A single record/of record of a single item
  2. it’s a labeled element. Lika a address
  3. A set of collums and rows.
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#452
  1. A record representing a single item.
  2. A labelled element in a tuple.
  3. A set of columns and rows.
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#453
  1. What is a row?

It’s a data set regarding one item

  1. What is a column?

It’s an attribute of the item from the row

  1. What is a table?

It’s a set of columns and rows

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#454
  1. A row is a single record, A user, for ex.
  2. A column is an attribute of a record. The Age or Sex of a user, for ex.
  3. A Table is a set of records. A set of rows and columns.
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#455
  1. A dataset representing a single item.
  2. A labelled element of a tuple.
  3. A set of tuples sharing the same attributes.
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#456

1- What is a row?

A dataset representing a single item.

2- What is a column?

A labelled element such as “age” or “phone number”.

3- What is a table?

A group of rows and columns.

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#457
  1. A data set representing a single item
  2. A labled element of a Tuple
  3. A set of Tuples sharing the same attributes
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#458
  1. What is a row?
    A row, or record when talking about relational data, is a single data set in the table representing one data point.
  2. What is a column?
    A column, also knows as a attribute or field, labels the records into various categories.
  3. What is a table?
    A set of columns and rows. contains the attributes, shown vertically, and the records, shown horizontally
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#459
  1. What is a row?
    A data set representing a single item
  2. What is a column?
    A labeled element eg. Date of Birth or Sex
  3. What is a table?
    A set of rows and columns
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#460
  1. What is a row?
    • A single item of the database
  2. What is a column?
  • An attribute that can have every item of a table
  1. What is a table?
  • Relations between items and attributes
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#461
  1. Record. A data representing a single item.
  2. Attribute or field. A label that can be attributed to each row.
  3. Set of columns and rows. Set of records with the same attributes.
1 Like