What is Oracle PL SQL package?
What is a PL/SQL package. In PL/SQL, a package is a schema object that contains definitions for a group of related functionalities. A package includes variables, constants, cursors, exceptions, procedures, functions, and subprograms. It is compiled and stored in the Oracle Database.
What packages are available to PL SQL developers?
For more information, see Oracle Database PL/SQL Packages and Types Reference.
- About the DBMS_ALERT Package.
- About the DBMS_OUTPUT Package.
- About the DBMS_PIPE Package.
- About the HTF and HTP Packages.
- About the UTL_FILE Package.
- About the UTL_HTTP Package.
- About the UTL_SMTP Package.
What are packages in Oracle SQL?
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.
How do I run a package in PL SQL?
Running PL/SQL routines and packages
- In either the Data Source Explorer or the Data Project Explorer, right-click the PL/SQL package or routine that you want to run, and click Run.
- View the results that correspond to the run action in the SQL Results view.
What are the benefits of PL SQL packages?
Advantages of PL/SQL
- Tight Integration with SQL.
- High Performance.
- High Productivity.
- Portability.
- Scalability.
- Manageability.
- Support for Object-Oriented Programming.
- Support for Developing Web Applications.
What is difference between procedure and package in Oracle?
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.
What is the difference between package and package body in Oracle?
A PL/SQL package consists of two parts: package specification and package body. If the package specification has cursors or subprograms, then the package body is mandatory. Otherwise, it is optional. Both the package body and package specification must be in the same schema.
Why do we use packages in PL SQL?
Package Specification It just DECLARES the types, variables, constants, exceptions, cursors, and subprograms that can be referenced from outside the package. In other words, it contains all information about the content of the package, but excludes the code for the subprograms.
What is package and package body in Oracle?
The CREATE PACKAGE BODY statement creates or replaces the body of a stored package, which is an encapsulated collection of related procedures, stored functions, and other program objects stored as a unit in the database. The package body defines these objects.
How do I execute a package?
Right-click the package name and select Execute. Configure the package execution by using the settings on the Parameters, Connection Managers, and Advanced tabs in the Execute Package dialog box. Click OK to run the package. Use stored procedures to run the package.
How do I run a package in PL SQL Developer?
After couple of tries, I found an easy way to execute the stored procedure from sql developer itself.
- Under packages, select your desired package and right click on the package name (not on the stored procedure name).
- You will find option to run. Select that and supply the required arguments.
What is the disadvantage of packages in PL SQL?
Disadvantages of Package – More memory may be required on the Oracle database server when using Oracle PL/SQL packages as the whole package is loaded into memory as soon as any object in the package is accessed.
Which is better procedure or package?
The advantage of a package over a stand-alone procedure is that all the procedures and functions are loaded into memory so that when one procedure within the package calls another within the same package it is already loaded so this should give performance benefits if designed properly.
Which of the following are advantages of PL SQL packages?
PL/SQL Packages – Advantages, Disadvantages
- a. Modularity.
- b. Easier Application Design.
- c. Information Hiding.
- d. Added Functionality,Better Performance.
- e. All mentioned above.
How do I view packages in SQL Developer?
Go to VIEW menu, click on find DB objects option. In the find db object pane put the name of the package and select the DB. Both, the spec and body will appear, double click to open.
What are the packages in PL/SQL?
Packages provide a convenient way of organizing the functions and procedures that have a related purpose.
How do I create an oracle package?
Creating SERIALLY_REUSABLE Packages. To create a SERIALLY_REUSABLE package,include the SERIALLY_REUSABLE pragma in the package specification and,if it exists,the package body.
How to add blank space in Oracle PL SQL?
Description. The Oracle/PLSQL RPAD function pads the right-side of a string with a specific set of characters (when string1 is not null).
What is a package in PL SQL?
Components of Packages