Table of Contents
What is Package state?
“The values of the variables, constants, and cursors that a package declares (in either its specification or body) comprise its package state. If a PL/SQL package declares at least one variable, constant, or cursor, then the package is stateful; otherwise, it is stateless.”
Is a package a stored procedure?
A package is a group of related procedures and functions, together with the cursors and variables they use, stored together in the database for continued use as a unit. Similar to standalone procedures and functions, packaged procedures and functions can be called explicitly by applications or users.
Has errors ORA 06508 PL SQL could not find program unit being called?
The ORA-06508 is an error deriving from a program unit being called and not being found. What this means is that the user tried to call a procedure that was not available due to the procedure being dropped or modified in an incompatible manner.
Which of the following is an incorrect statement about packages?
6. Which of the following is an incorrect statement about packages? Explanation: A package can be renamed only after renaming the directory in which the classes are stored.
Can we import same class package twice?
Yes, you can import a class twice in Java, it doesn’t create any issues but, irrespective of the number of times you import, JVM loads the class only once.
What is difference between procedure and package?
A package can contain no procedures or functions. It may just contain data types or global variables. 2. A procedure does not return any values in itself, however it can have parameters that can be used to return values as either OUT or modify (IN/OUT).
What are packages in database?
A package is a schema object that groups logically related PL/SQL types, variables, constants, subprograms, cursors, and exceptions. A package is compiled and stored in the database, where many applications can share its contents.
Which of the following is true about packages?
Which of the following is true about packages? Explanation: A library contains many packages and it is used to collect and describe elements that can be shared globally among all the design units. It may contain any commonly used data type, functions or constants.
What will happen if we import a package twice?
Can I write package STMT after import STMT?
No, we cannot define a package after the import statement in Java. The compiler will throw an error if we are trying to insert a package after the import statement. A package is a group of similar types of classes, interfaces, and sub-packages.
What is the difference between package specification and package body?
The specification is the interface to the package. It declares the types, variables, constants, exceptions, cursors, and subprograms that can be referenced from outside the package. The body defines the queries for the cursors and the code for the subprograms.
What are database packages examples?
Database packages are used to design a database in a computer. Example of a common database package is Microsoft Access. MS Access is a Relational Database Management System used to create and modify databases.
What are components of package?
Packages consist of two main components: the package specification and the package body. The package specification is the public interface, comprising the elements that can be referenced outside of the package.
Can we alter the definition and declaration of the existing procedure?
This statement does not change the declaration or definition of an existing procedure. To redeclare or redefine a procedure, use the CREATE PROCEDURE statement with the OR REPLACE clause (see CREATE PROCEDURE ). The ALTER PROCEDURE statement is quite similar to the ALTER FUNCTION statement.
Can you alter procedure with in package?
Because all objects in a package are stored as a unit, the ALTER PACKAGE statement recompiles all package objects. You cannot use the ALTER PROCEDURE statement or ALTER FUNCTION statement to recompile individually a procedure or function that is part of a package.
Why is packaging so important?
The primary purpose of packaging is to protect its contents from any damage that could happen during transport, handling and storage. Packaging retains the product intact throughout its logistics chain from manufacturer to the end user. It protects the product from humidity, light, heat and other external factors.