Simple data manipulation is a programming technique used to
SELECT or INSERT
a single row. It can also be used to INSERT, DELETE, or
UPDATE one or more rows based on a specific criterion.
These types of data manipulation operations are considered
simple because they can be done with SQL data manipulation
commands that staisfy the following conditions:
Do not contain the BULK option; therefore,
the host variables used are not arrays, and data references
are simplified.
Are not executed in conjunction with a cursor; therefore,
additional SQL commands such as FETCH and OPEN are not required.
Are not dynamically preprocessed; and therefore, do not require use of
commands such as PREPARE, DESCRIBE, and EXECUTE IMMEDIATE.
This chapter reviews how to use the SELECT, INSERT, DELETE, and
UPDATE commands
for simple data manipulation. It then briefly examines
transaction management considerations. For further discussion of
transaction management, refer to the ALLBASE/SQL Reference Manual .
A program illustrating simple data manipulation is found at the end of
the chapter.
