SQL and Relation Databases - Reading Assignment

Blockchain Business Course
#602
  1. A Row is a set of data representing a single item
  2. A Column is a piece / type of information that appears on many Rows (For example, “Surname”)
  3. A table is a set of Rows that have a common set of Columns
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#603

Answers to “SQL and Relation Databases” questions:

  1. Row - a data set representing a single item
  2. Column - A labeled element of a tuple
  3. Table - A set of tuples sharing the same attributes, a set of columns and rows
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#604
  1. What is a row?
    A data set representing a single item. also called record
  2. What is a column?
    A labeled element of a tuple, e.g. “Address” or “Date of birth”. also called attribute or field
  3. What is a table?
    A set of tuples sharing the same attributes; a set of columns and rows
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#605

  1. A data set for a single item.

  2. Field/attribute a label element of a tuple/row.

  3. A set of tuples sharing the same attributes.

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#606
  1. What is a row?

A data set representing a single item.

  1. What is a column?

A labeled element of a tuple.

  1. What is a table?

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

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#607

Reading Assignment: SQL & Relational Database

  * What is a row?
    *    A data set representing a single item.
  * What is a column?
    *    A labelled element of a tuple.
  * What is a table?
          A set of tuples sharing the same attributes; a set of columns and rows
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#608

1/ row = record, value
2/ column = attribute
3/ table = relation

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#609
  1. What is a row?
  2. What is a column?
  3. What is a table?

1- A row is a single record. A user, for example.
2- A column is an attribute of a record. The age or sex of a user, for example.
3- A table is a set of records. A set or rows and columns.

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#610
  1. What is a row?
  • Dataset represending a single item
  1. What is a column?
  • A row of elements of the same datatype (f.e. birthday)
  1. What is a table?
  • a set of colums and rows
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#611
  1. What is a row?

A row represents an entry in a database, a specific record where all required attributes are entered.

  1. What is a column?

A column represents an attribute - some property that every entry (row) in the database may or must have.

  1. What is a table?

A table is all of the entries (rows) sharing the same attributes (columns).

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#612

1) What is a row?
A record of a single item.

2) What is a column?
A labeled element of a single item

3) What is a table?
A table is a set of rows and column, or a set of single items who share the same attributes.

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#613

SQL- Relation DB homework
1- A row is a tuple, a specific data that identifies or applies to an item (something or someone)
2´A Column is an attribute common to the tuples of the same table,
3- A table establishes the relationship of the tuples with common, although with different values, attributes

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#614

What is a row?

A row is a record.

It is data set representing a single item.

What is a column?

A column is an attribute. A labeled element of a tuple, e.g. “Address” or "Date of birth.”

What is a table?
Relation or Base relvar A set of tuples sharing the same attributes; a set of columns and rows.

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#615
  1. A row is a data set representing a single item
  2. A column is a labeled element such as a date of birth or address.
  3. A table is a set of tulles sharing the same attributes; a set of columns and rows
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#616

What is a row?
Each row in a database table represents one set of a 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 records, keeping track of data. A column is also called an attribute or a field

What is a table?
A database table is a table with rows and columns of data.

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#617
  1. What is a row?

A row is a set of data for an item in the database, such as a customer, order, or any item that has various attributes stored for it

  1. What is a column?

A column is an attribute or field that that applies to an item in the database. For example, if it is a customer database, an attribute / field could be customer name, customer number, address, start date, etc

  1. What is a table?

A table is a combination of rows and columns that lists the items and displays their various attributes

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#618
  1. A data set representing a single item or data record.
  2. A labelled element of a tuple, e.g. “Address” or “Date of birth”
  3. A set of data records sharing the same attributes; a set of columns and rows
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#619
  1. A single record in the database (also called ‘tuple’)
  2. One data element (or attribute) of a record
  3. A set of records of the same type, which share the same attributes (columns)
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#620
  1. What is a row?

A SQL relational database term: a data set representing a single item

  1. What is a column?

A SQL term that is an attribute or field: a labeled element of a tuple (eg) address or a date of birth

  1. What is a table?

A SQL term that is a relation or base relvar: a set of tuples sharing the same attribute (set of climbs and rows)

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#621

A row is a record, for example, a user.
A column is an attribute or field. A labeled element like DOB or address.
A table is called a relation, it is a set of rows and columns.

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