Explanation:
Both Primary Key and Candidate Key are the attributes that are used to access tuples from a table. These (Primary key and Candidate key) are also can be used to create a relationship between two tables.
- A Candidate Key can be any column or a combination of columns that can qualify as a unique key in the database. Each Candidate Key can qualify as a Primary Key.
- A Primary Key is a column or a combination of columns that uniquely identify a record. The primary key is a minimal super key, so there is one and only one primary key in any relationship.
<em> The main difference between them is that a primary key is unique but there can be many candidate keys. </em>
I hope you find this information useful and interesting! Good luck!
Answer:
Java Class given below
Explanation:
class ReadOnly
{
protected int val;
public ReadOnly(int arg)
{
val = arg;
}
public int getVal()
{
return val;
}
}
class ReadWrite extends ReadOnly
{
private boolean dirty;
public ReadWrite(int arg)
{
super(arg);
dirty = false;
}
public void setVal(int arg)
{
val = arg;
dirty = true;
}
public boolean isDirty()
{
return dirty;
}
}
In the case above, the cell that you can highlight before selecting freeze panes is row 3 column 4.
<h3>How do one freeze several column?</h3>
This can be done when a person select the column that's is said to be next to the right of the last column a person want to freeze.
Therefore, In the case above, the cell that you can highlight before selecting freeze panes is row 3 column 4.
Learn more about panes from
brainly.com/question/17194167
#SPJ1
Answer:
Check the explanation
Explanation:
def get_list_of_integers_from_file(filename):
int_list=[]
for line in open(filename).readlines():
try:
int_list.append(int(line))
except:
continue
return int_list
print(get_list_of_integers_from_file('file.txt'))
File.txt:
Kindly check the output below.
