SQL and Relation Databases - Reading Assignment

Blockchain Business Course
#622
  1. A data set representing a single item
  2. Column is a labeled element of a tuple, e.g. “Address” or “Date of birth”
  3. A set of tuples sharing the same attributes; a set of columns and rows
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#623

  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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#624

  1. In an SQL database, a row is a data set representing a single item.

  2. A column contains a field or attribute of an item.

  3. A table holds a collection of similar items, organized into rows and columns.

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#625
  1. What is a row?
  • A row in a database is a “record” or data set of a single item.
  1. What is a column?
  • A column is an “Attribute / Field”, a labeled element, like an address or date of birth.
  1. What is a table?
  • A table is a “relation or base”, which is a set of tuples sharing the same attributes, just like a set of columns and rows.
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#626

  1. What is a row?
    A single record of data.

  2. What is a column?
    A variable or attribute.

  3. What is a table?
    A set of columns and rows.

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#627
  1. What is a row?
    Data representing single record of ata
  2. What is a column?
    Attribute
  3. What is a table?
    Set of columns and rows
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#628

1/ Row is a collection of attributes in a record
2/Column is an attribute
3/ a spreadsheet with rows and columns

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#629
  1. What is a row?
  2. What is a column?
  3. What is a table?

ANSWERS—

1.A data set representing a single item
2.A labeled element of a record, e.g. “Address” or “Date of birth”
3.a set of columns and rows

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#630

The row has the characteristics of a single entity.

Each attribute of an entity is described in column

Table is the collection of all rows and columns.

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#631
  1. **What is a row?
    A data set representing a single item = a record
  2. **What is a column?
    A labelled element of a tuple = attribute or field
  3. **What is a table?
    A set of tuples sharing the same attributes, a set of rows and columns = relation
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#632
  1. What is a row? Data set representing a single item (record)
  2. What is a column? A labeled element of a tuple (ordered list of elements) (Attribute or field)
  3. What is a table? Set of tuples sharing the same attributes. The set of rows columns and rows (relation)
2 Likes
#633
  1. What is a row?
  • A row is a data set representing a single item
  1. What is a column?
  • A column is a labeled element of a tuple
  1. What is a table?
  • A table is a set of tuples sharing the same attributes; a set of columns and rows
1 Like
#634
  1. What is a row?
    A row represents a single record (like a person and a bunch of data about that person).
  2. What is a column?
    A column represents attributes of the records, like name, height, favorite book, or whatever else is chosen to be recorded.
  3. What is a table?
    A table is a set of columns and rows, ie a stack of records (rows) holding the same attributes (columns), ie a list of a lot of people with their attributes recorded in the exact same order. (ie a set of tuples - a set of finite ordered lists, recording the same attributes).
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#635
  1. A row is a record: data for a single item
  2. A column is an attribute or field
  3. A table is a set of rows and columns
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#636

  1. What is a row?
    A details pertaining to a single transaction/data point/item.

  2. What is a column?
    Column can be consider a detail header/attribute that all the rows should have.

  3. What is a table?
    Table is the specific collection of rows and columns.
    Imagine this as a tab in an excel spread sheet, you might have multiple tables in a database.

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#637
  1. A row is a data set representing a single item
  2. A column is a labeled element of a tuple
  3. A table is a set of tuples sharing the same attributes
1 Like
#638

A row is a set of data that represents a single item/record in a table.

A column stores specific characteristics or attributes of an item or record in a table.

A table is a set of records or items that share the same characteristics or attributes, organized into columns and rows.

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#639
  1. A data set representing a single item
  2. A labeled element of a tuple, e.g. “Address” or “Date of birth”
  3. A set of tuples sharing the same attributes; a set of columns and rows
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#640
  1. A data set representing a single item or key.
  2. A specific labeled part of a row.
  3. A set of columns and rows.
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#641

  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 columns and rows that share the same attributes.

1 Like