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Question 1. Compare SQL and PL/SQL
Question 2. Write a database trigger to implement the following check condition
Given the following table
Empno Empname Joining Date
Every time the user enters the employee number in the above table, it should check that it is always >1 and <200
Question 3. Differentiate between shared pool and large pool of Oracle memory component
Question 4. Write about the following Oracle 9i objects
Question 5. Write a query using oracle SQL to compute the number of months between September 29,1999 and August 17, 2003
Question 6. Write a select statement in oracle SQL that returns each instructors last name followed by a comma and a space, followed by instructor's first name all in single column in the result set
Project Description: I want a small relational database to be built. I want the database to have the subsequent information tables: Employee Information Document storage
Case Sensitivity Similar to all the identifiers, the variables, the names of constants, and parameters are not case sensitive. For illustration, PL/SQL considers the following n
Type versus Representation Confusion in SQL This describes how a value might have two or more distinct representations. For example, user-defined type POINT might have a decla
Using Host Arrays The Client-side programs can use anonymous PL/SQL blocks to bulk-bind input and output host arrays. However, this is the well-organized way to pass the colle
Data Types and Representations This explains the concept possible representation, abbreviated possrep, and explains how these can be used in conjunction with constraints to de
SELECT a.child_fname,a.child_lname,concat(b.parent_title,b.parent_fname), b.parent_lname,b.parent_tphone FROM child a,parent b WHERE a.parent_id=b.parent_id ORDER BY a.child_fnam
Data Types in SQL - Integer INTEGER or synonymously INT, for integers within a certain range. SQL additionally has types SMALLINT and BIGINT for certain ranges of integers. T
Exception handling In the PL/SQL, a warning or error condition is known as an exception. The Exceptions can be internally defined (by the run-time system) or user defined. The
Assignments in pl/sql The Variables and constants are initialized every time a block or subprogram is entered. By default, the variables are initialized to NULL. Therefore, unle
IS NULL Operator The IS NULL operator returns the Boolean value TRUE whenever its operand is null or FALSE if it is not null. The comparisons including the nulls always yield NU
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