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BETWEEN and NOT BETWEEN Operator in SQL
Example: Restricting exam marks to between 0 and 100
CREATE ASSERTION Marks_between_0_and_100
CHECK (NOT EXISTS (SELECT *
FROM EXAM_MARK
WHERE Mark NOT BETWEEN 0 AND 100));
Cursor Variables As Parameters You can declare the cursor variables as the formal parameters of the functions and procedures. In the illustration below, you define the REF CUR
LOOP Statements The LOOP statements execute a series of statements at multiple times. The loops enclose the series of statements that is to be repeated. The PL/SQL provides typ
Advantages of Packages The benefits of the Packages are as shown below: Modularity The Packages encapsulate logically associated items, types, and subprograms in the
Write a program to implement the inverted file shown in the slides (Simple Index file, LabelID file and Data file). Use the Avail_List to point at the deleted Label IDs so that th
%FOUND Subsequent to a cursor or cursor variable is opened but before the first fetch, the %FOUND yields NULL. Afterward, it yields TRUE when the last fetch returned a row, or
If two relations R and S are joined, then the non matching tuples of both R and S are ignored in __________________.
THEO R Y OF ETERNITY OF LIFE (PRAYER - 1880) - The theory of eternity of life, also called the steady-state theory , states that life has ever been in existence as at presen
What are 3 good practices of modeling and/or implementing data warehouses?
Write a cursor to open an employee database and fetch the employee record whose age is greater than 45
Need Azure CRM Web Application with two-factor authentication We presently have a CRM-like database stored on MS Azure that we presently access over an MS Access application. It
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