Download L2 U11_describing

Gold Unit 11 – Database Software
1. Create and modify non-relational database tables
1.1
I can identify the components of a database design
See database
1.2
I can describe the field characteristics for the data required
Name of field
Data type
If text –
length
required
Reason for
choice of Data
Type
Choice field –
if yes, list the
choices
Would an
‘input mask’
help?
(An input mask
allows a preset layout, e. g.
for national
insurance
numbers, post
codes, phone
fields.)
If number –
type
required.
Decimal
places
needed?
Title
Text
5
It is a text
a only uses
letters I
only used 5
letters for a
tittle
because not
many
common
titles have
over 5
characters
Yes
Surname
Text
25
It uses only No
letters and
all surnames
are under 25
characters
long.
An input
mask would
not help as
a set layout
would not
work as
each option
is a
different
format e.g.
different
amounts of
text.
An input
mask would
not help as
a set layout
would not
work as
each option
Primary
Key
Yes / No
no
No
Initial
Text
1
Address 1
Text
40
Address 2
Text
20
It is a text
a only uses
letters I
only used 1
letters for
an initial
because not
many
common
titles have
over 1
characters
It is a text
a only uses
letters I
only used 40
letters for
an address
line 1
because not
many
common
titles have
over 40
characters
It is a text
a only uses
letters I
only used 1
letters for
an address
line 2
because not
many
common
No
No
No
is a
different
format e.g.
different
amounts of
text.
An input
mask would
not help as
a set layout
would not
work as
each option
is a
different
format.
An input
mask would
not help as
a set layout
would not
work as
each option
is a
different
format e.g.
different
amounts of
text.
An input
mask would
not help as
a set layout
would not
work as
each option
is a
different
format.
No
No
No
Town
Text
20
Postcode
Text
10
Home Phone
Text
15
Mobile No
Text
15
titles have
over 1
characters
It uses only
letters and
all towns
names are
under 20
characters
long.
No
It uses only Yes
letters and
numbers and
this option is
suitable for
them both.
All
postcodes
are under 10
characters
long.
It uses only No
numbers and
all home
phone
numbers are
under 15
characters
long.
It uses only
No
different
amounts of
text.
An input
mask would
not help as
a set layout
would not
work as
each option
is a
different
format e.g.
different
amounts of
text.
It would
help as a
postcode is
always in
the same
layout so
this would
be suitable.
No
No
An input
No
may help but
in the input
mask mobile
numbers you
have the
first bit in
brackets
and you do
not write a
mobile
number in
this format.
It would
Yes
numbers and
all mobile
phone
numbers are
under 15
characters
long.
Phone
Purchased
Text
Date of
Purchase
Price Plan
20
It uses only
letters and
all phone
names are
under 20
characters
long.
No
Date/Time Short
date
It is the
best option
for inputting
dates.
No
Text
It uses only
letters and
all price plan
names are
under 15
characters
long.
Yes
15
work as it
would be in
the correct
format but
some are
ex-directory
and these
would not be
able to be
inputted in
to the filed.
An input
No
mask would
not help as
a set layout
would not
work as
each option
is a
different
format e.g.
different
amounts of
text.
The date
No
text type
already has
an inbuilt
input mask
so one is not
needed.
An input
No
mask would
not help as
a set layout
would not
work as
each option
is a
different
format.
different
amounts of
text
1.3
I can create and modify database tables using a range of field types
See database
1.4
I can describe ways to maintain data integrity
To maintain the data integrity I have used combo boxes using the look up
wizard for the customer’s title and their price plan. This will mean that
there will be spelling mistakes in that filed.
I have also used an input mask in the postcode field. This will mean that
the information in that field will be consistent. This will mean that it will
all be in the correct format. I have also used an input mask in the date
field. This will ensure consistency with the format. The format I chose
was short date. This will be entered as DD/MM/YYYY.
I also set the mobile phone number as the primary key. This is so this
data can only be entered once into this field. This will mean that no
customers will have the same phone number as 2 people can never have
the same phone number. This will ensure that this mistake will not be
made.
1.5
I can respond appropriately to problems with database tables
See database
1.6
I can use database tools and techniques to ensure data integrity is
maintained
See database
2. Enter, edit and organise structured information in a database
2.1
I can create forms to enter, edit and organise data in a database
See database
2.2
I can select and use appropriate tools and techniques to format data
entry forms
See database
2.3
I can check data entry meets needs, using IT tools and making
corrections as necessary
See database
2.4
I can respond appropriately to data entry errors
See database
3. Use database software tools to run queries and produce reports
3.1
I can create and run database queries using multiple criteria to display or
amend selected data
See database
3.2
I can plan and produce database reports from a single table non-relational
database
See database
3.3
I can select and use appropriate tools and techniques to format database
reports
See database
3.4
I can check reports meet needs, using IT tools and making corrections as
necessary
See database