Page 509 - Computer_Science_F5

Computer Science DROP: Delete a database, table, Deliverables:
index, or view
In the context of the farming database
example, assume you want to use the
DROP statement to delete an index in
FOR ONLINE READING ONLY
the “crops” table.
Activity 8.26:
Deleting an Index from a SQL
database
Aim:
Understanding how to delete an index
from a database table using the DROP
statement.
Materials:
Computer with Internet access;
MySQL client or command-line
interface (such as MySQL Workbench,
phpMyAdmin) or access to an online
SQL editor (Such as, W3Schools)
Instructions:
Step 1: Open your SQL client or
online SQL editor.
Step 2: Use the following SQL
command to drop an index
from the “crops” table.
Codes look as:
DROP INDEX idx_crops_name ON
crops;
Step 3: Verify that the index has
been dropped by checking
the structure of the “crops”
table. Codes look as:
SHOW INDEX FROM crops;
500
Computer Science Form 5.indd 500
Prepare a brief report tha includes the
following:
(a) Documentation: Detailed
documentation of the process
involved in dropping an index from
the “crops” table in the farming
database.
(b) Screenshots: Screenshots or output
from the SQL client or online SQL
editor showing the execution and
successful dropping of the index.
(c) Reflection: A brief reflection on
the significance of using the DROP
statement in database management,
discussing potential benefits and
considerations when modifying
database structures.
Finally, document all your workings
in a portifolio.
PHP Fundamentals
PHP (Hypertext Preprocessor) is widely
used for developing dynamic websites
and interacting with databases. By
understanding PHP, you can create
dynamic web pages, handle user input,
and manipulate data stored in databases
more effectively. This is done effectively
with earlier covered basic understanding
of HTML which is the markup language
used for creating website structure, CSS
which is responsible for styling web
pages, and databases which stores and
organises data efficiently for different
applications.
for Advanced Secondary Schools
23/07/2024 12:35