« previous next »

Author Question: Selection operation does which of the following? A) Combines data from two tables B) Retrieves a ... (Read 81 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jul 7, 2018
Selection operation does which of the following?
 
  A) Combines data from two tables B) Retrieves a subset of rows
  C) Retrieves a subset of columns D) Makes a link between two tables

Question 2

Joining operation does which of the following?
 
  A) Combines data from two tables B) Retrieves a subset of rows
  C) Retrieves a subset of columns D) Makes a link between two tables


strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 7, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Energy budget for a temperate deciduous forest (data from Gosz et al. 1978). Energy budget for a temperate deciduous forest (data from Gosz et al. 1978).
The Split-Brain Operation The Split-Brain Operation
Flow cytometry data that shows the differences in CD3+ CD4+ cells that occur with HIV infection. ... Flow cytometry data that shows the differences in CD3+ CD4+ cells that occur with HIV infection. ...
Find a quadractic equation that models the data in standard form Find a quadractic equation that models the data in standard form
The effect of selection on allele frequency The effect of selection on allele frequency
Disruptive selection eliminates midrange forms of a trait Disruptive selection eliminates midrange forms of a trait
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library