Can we create package body without package?

Can we create package body without package?

2 Answers. Can we create a package Specification without body ? Yes, and these are quite useful when the package only contains variable and/or type declarations, e.g.

What is the difference between package and package body?

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.

How do I wrap a package in Oracle?

Running the Wrap Utility

1. To run the Wrap Utility, enter the wrap command at your operating system prompt using the following syntax: wrap iname=input_file [oname=output_file]
2. The wrap command requires only one argument, which is iname=input_file.
3. where input_file is the name of the Wrap Utility input file.

What is Oracle wrap?

The wrap utility is a command line utility that obfuscates the contents of a PL/SQL source file. The iname parameter specifies the source file, while the oname parameter specifies the destination file. If the destination file is not specified it defaults to the source file name with a “. plb” extension.

How do I view a package 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 is a package in PL SQL Mcq?

It declares the types,variables,constants,exceptions,cursors and the subprograms. It contains all information about the content of the package. 2. Package Body – It consists of all the codes for the methods declared in the package specification. 8) You can pass parameters to procedures or functions in a package.

Which is better procedure or package?

Packages provide the following advantages: Cohesion: all the procedures and functions relating to a specfic sub-system are in one program unit. This is just good design practice but it’s also easier to manage, e.g. in source control. We only need to grant EXECUTE on a package rather than on several procedures.

How do I compile a package body?

To recompile the body of the emp_mgmt package in the schema hr , issue the following statement: ALTER PACKAGE hr. emp_mgmt COMPILE BODY; If Oracle Database encounters no compilation errors while recompiling the package body, then the body becomes valid.

How can I see the wrapped code in PL SQL?

Right-click within editor to show the pop-up-menu. Select Unwrap or simply press Ctrl-Shift-U to unwrap the code. The editor content is replaced by the unwrapped code.

How do I describe a package in SQL Developer?

A package is a schema object that groups logically related PL/SQL types, variables, and subprograms. Packages usually have two parts, a specification (spec) and a body; sometimes the body is unnecessary. The specification is the interface to the package.

Is it possible to wrap a package body in Oracle?

Answer: Oracle has two method for wrapping PL/SQL, a way to hide the source code in vendor applications, and they are the wrap.exe and the dbms_ddl.wrap utility in release 10.2 and onwards. According to Dave Moore, author of the book ” Oracle Utilities “, you cannot use wrap.exe to wrap a package body .

When to leave the specification unwrapped or wrap?

Wrap only the body of a package or type, not the specification. Leaving the specification unwrapped allows other developers to see the information needed to use the package or type (see Example A-5). Wrapping the body prevents them from seeing the package or type implementation. Wrap files only after you have finished editing them.

What is the effect of wrapping a file?

Wrapping a file that is already wrapped has no effect on the file. Wrap only the body of a package or ADT, not the specification. This allows other developers to see the information they must use the package or type, but prevents them from seeing its implementation.

What does wrapping mean in Oracle Database vault?

Wrapping text is low-assurance security. For high-assurance security, use Oracle Database Vault, described in Oracle Database Vault Administrator’s Guide. A file containing wrapped PL/SQL source text is called a wrapped file. A wrapped file can be moved, backed up, or processed by SQL*Plus or the Import and Export utilities.