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2.3.6 Standard Query Language (SQL)
“SQL
is an American National Standard Institute (ANSI) standard computer language
for accessing and manipulating database” [16]
SQL
has
function
to
create
database,
retrieve
and
update
the
data
within.
There
are
many programs used SQL language such as: Microsoft Access, MySQL Server, and
Oracle.
SQL consist of Data Manipulation Language (DML) and Data Definition Language
(DDL). DML manipulate the data inside the database. The commands are: SELECT
UPDATE, INSERT, and DELETE. DDL define the definition of the database when it
created, set keys and constraints, and delete the database. The commands are: CREATE
TABLE, ALTER TABLE, DROP TABLE, CREATE INDEX, and DROP INDEX.
2.3.7 Java
“Java
is
a
programming
language
that
is
designed
to
be
platform
independent
with robust runtime environment and simplified
memory
management.”[19]
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