SQL and Relation Databases - Reading Assignment

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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a row is a single line data linked to one item/key
the columns represent the fields or attributes (address, name,…) of data. so every row has several columns/fields with data
a table is a combination of several row and columns.

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  1. Row is a record of information representing a single item

  2. Column is an attribute or field to place information (tuple)

  3. Table is a set of rows and columns as in a set or multiple (tuples)

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  1. Single value
  2. Attribute of value
  3. Row and columns combined
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  1. What is a row?

Represents an instance of a specific data type (Example: Person)

  1. What is a column?

A column represents a specific attribute of the data (Example: Person name)

  1. What is a table?

A collection of records with the same attributes (A set of columns and rows)

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  1. What is a row?
  • “A data set(s representing a single item that can be retrieved”.
  • Data can also be compared through various relationships, a one-to-one, a one-to-many, a many-to-many and an entity-relationship diagram.
  1. What is a column?
  • "A labeled element “section of data’ of a tuple, e.g. “Address” or “Date of birth””
  • Usually Tuples are from left to right
  1. What is a table?
  • Usually multiple sets of tuples which are connected through an idea or a common theme
  • A defined set of columns and rows.
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  1. Row is a data set representing a single item.
  2. Column represents the attributes of items.
  3. Table is a set of rows sharing the same attributes.
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  1. A SQL row is in a Relational database term, a finite ordered list (record/tuple) of elements, a data set representing a single identity or item. It’s the horizontal data sequence represented on a table.

  2. A SQL column is in a Relational database term, the labeled element of a tuple. It’s the vertical field of attributes represented on a table.

  3. A SQL table is in a Relational database term, the Relation or Base relvar of a set of tuples (rows) sharing the same attributes (columns).

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1 A row is a record in a table, made of a collection of attributes

2 A column is an attribute of the records

3 A table is the collection of rows that share the same attributes

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  1. What is a row?
    It’s the part of a table cells that go horizontally
  2. What is a column?
    A column is the part of the table that goes vertically
  3. What is a table?
    A table is collection of rows and columns
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  1. A record - a dataset representing a single item. A tuple.
  2. An attribute / field - a labeled element of a tuple.
  3. A relation - a set of tuples sharing the same attributes
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  1. Row is an entry in the database about a single item
  2. Column is a field in the database containing a specific detail of each item
  3. Table is a set of attributes recorded for each item, which is available for analysis and the creating of relations without changing the structure in the database
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  1. ROW: A set of data from one single item

  2. COLUMN: A labeld element of the data set (row)

  3. TABLE: the object which contains all the data (rows and columns), or group of singles item sharing same attributes

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  1. A row is a single piece of data, such as a user.
  2. A column is an attribute to sets of data.
  3. A table is a set of rows and columns that may share the same attributes and tuples.
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1.- It is a set of information, record or combination of key and attribute.
2.- It is an attribute of a key.
3.- it is a combination of a key and attribute.

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  1. A row is a data set representing a single item.
  2. A column is a labeled element or an attribute.
  3. A table is a visual display of the relationship between the columns and rows.
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  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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