What is package and its advantages in Oracle
Each package is straightforward to understand, and the interfaces between packages are straightforward, clear, and well defined, which helps with application development. Easier Application Design.
What is the use of package in Plsql
The practice of using packages, which allows you to encapsulate logically related types, variables, constants, subprograms, cursors, and exceptions in named PL/SQL modules, helps application development because each package can be made simple to understand, and the interfaces between packages can be made clear, concise, and well defined.
What are the benefits of packages in Java
Advantages of using Packages in Java
- Make classes and interfaces easier to find or search for.
- Avoid naming disputes.
- Apply data encapsulation (also known as data-hiding).
- Access control is provided at the package level by the access specifiers protected and default.
What are packages in database
A package can hold other database objects like variables, constants, cursors, exceptions, procedures, functions, and sub-programs. A package typically consists of two parts: a specification and a body.
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, if properly designed, this should improve performance when one procedure within the package calls another within the same package.
How do packages benefit the developer
It is a good practice to group related classes that you have implemented so that a programmer can quickly ascertain that the classes, interfaces, enumerations, and annotations are related. Programmers can define their own packages to bundle a group of classes/interfaces, etc.
What is the difference between package and procedure in Oracle
Similar to standalone procedures and functions, packaged procedures and functions can be explicitly called by applications or users. A package is a collection of related procedures and functions, along with the cursors and variables they use, stored together in the database for continued use as a unit.
What is a package body in Oracle
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, is created or replaced by the CREATE PACKAGE BODY statement.
How do I run a package
Right-click the package name and choose Execute. Set the parameters, connection managers, and advanced options in the Execute Package dialog box. Click OK to launch the package. Run the package using stored procedures.
What is collection in Oracle with example
PL/SQL – Collections
|Collection Type||Number of Elements||Where Created|
|Associative array (or index-by table)||Unbounded||Only in PL/SQL block|
|Nested table||Unbounded||Either in PL/SQL block or at schema level|
|Variablesize array (Varray)||Bounded||Either in PL/SQL block or at schema level|
What are triggers in Oracle
The Oracle Database automatically executes a trigger when a specified event occurs, which could be a system event or a DML statement being issued against the table. A trigger is either a stored PL/SQL block or a PL/SQL, C, or Java procedure associated with a table, view, schema, or the database itself.
Can pass you parameters to procedures or functions in a package
A packages procedures and functions both support the passing of parameters, which can also be passed to them as default values.
What is ref cursor in Oracle with example
In essence, a REF CURSOR is a pointer or handle to a result set on the database. REF CURSORs are represented through the OracleRefCursor ODP.NET class. A REF CURSOR is a PL/SQL data type whose value is the memory address of a query work area on the database.
What is cursor types of cursor and diff b W cursors
Implicit cursors are automatically created when select statements are executed, whereas explicit cursors require the user to define them explicitly by giving them a name. Both types of cursors are capable of fetching a single row at a time.
Which query is correct in finding the difference between months in Apex Oracle
If date1 is later than date2, the result of MONTHS_BETWEEN is positive. Otherwise, it returns the number of months between the two dates.
Which command will drop a package body
The DROP PACKAGE statement drops the body and specification of a package, allowing you to delete a stored package from the database.
What is forward declaration in Oracle
Remember that both procedures and functions have a header and a body. A forward declaration is simply the program header followed by a semicolon (;). This construction is referred to as the module header. This declaration makes that program available to be called by other programs even before the program definition.
What are the advantages of package in DBMS
A packages public variables and cursors persist for the duration of the session, allowing all cursors and procedures that execute in this environment to share them. Packages enable the overloading of procedures and functions when necessary.