Contents
- 1 What term is used to refer to a row?
- 2 Which term is used to refer to a column?
- 3 What represents a relationship among a set of values?
- 4 Which of the following attribute can be taken as a primary key?
- 5 Is a table represents a relationship among set of values?
- 6 What is each row called in a database?
- 7 How is a database row similar to a spreadsheet?
- 8 What does a row Mean in a NoSQL database?
What term is used to refer to a row?
Answer: B. Tuple is one entry of the relation with several attributes which are fields.
Which term is used to refer to a column?
Answer: A column can also be called an attribute. Each row would provide a data value for each column and would then be understood as a single structured data value.
Which term attribute refers to a table?
Answer: B. Attribute is a specific domain in the relation which has entries of all tuples. In the context of relational databases, a column is a set of data values, all of a single type, in a table. Columns define the data in a table, while rows populate data into the table.
What represents a relationship among a set of values?
table
A in a table represents a relationship among a set of values.
Which of the following attribute can be taken as a primary key?
Answer: C. The attributes name, street, and department can repeat for some tuples. But the id attribute has to be unique.So it forms a primary key.
Which of the following is used to represent attributes in a table in DBMS?
A table has rows and columns, where rows represents records and columns represent the attributes.
Is a table represents a relationship among set of values?
2. A ________ in a table represents a relationship among a set of values. Explanation: Column has only one set of values. Keys are constraints and row is one whole set of attributes.
What is each row called in a database?
In the context of a relational database, a row—also called a tuple—represents a single, implicitly structured data item in a table. In simple terms, a database table can be thought of as consisting of rows and columns. Each row in a table represents a set of related data, and every row in the table has the same structure.
What does a row Mean in a table?
Each row in a table represents a set of related data, and every row in the table has the same structure. For example, in a table that represents companies, each row would represent a single company. Columns might represent things like company name, company street address, whether the company is publicly held, its VAT number, etc..
How is a database row similar to a spreadsheet?
Techopedia explains Database Row. Database tables generally look similar to a spreadsheet. Relational tables have a very similar but more complex structure, as each table column represents a certain table property. For example, a table called CUSTOMER_MASTER might store basic customer data.
What does a row Mean in a NoSQL database?
In certain NoSQL database management systems, a row has a slightly different meaning. In a column store database, each row can contain a different number of columns to the other rows. The columns within each row are contained to that row. A column family containing 3 rows. Each row contains its own set of columns.