Parameter and keyword description - procedures, PL-SQL Programming

Assignment Help:

Parameter and Keyword Description:

procedure_name

The user-defined procedure is declared by this construct.

parameter_name:

This identifies the formal parameter that is a variable declared in the procedure specification and referenced in the procedure body.

IN, OUT, IN OUT:

These parameter modes define the behavior of the formal parameters. An IN parameter pass the values to the subprogram being called. The OUT parameter returns the values to the caller of the subprogram. An IN OUT parameter passes the initial values to the subprogram being called and returns the updated values to the caller.

NOCOPY:

This is a compiler hint but it is not directive, that allows the PL/SQL compiler to pass the OUT and IN OUT parameters by the reference rather than of by value.

Datatype:

The datatype construct is a type specifier.

:= | DEFAULT:

This keyword or operator allows you to initialize the IN parameters to the default values.

Expression:

This is a randomly complex combination of constants, variables, literals, operators, & function calls. The easiest expression consists of a single variable. When the declaration is explained, the value of the expression is assigned to the parameter. The value and the parameter should have the compatible datatypes.

type_definition:

The user-defined datatype is specified by this construct.

item_declaration:

This declares the program object

function_declaration:

This construct declares the function.

procedure_declaration:

The procedure is declared by this keyword.

exception_handler:

This construct relates an exception with a series of statements that is executed when the exception is raised.


Related Discussions:- Parameter and keyword description - procedures

Manipulating collections-nested table examples, Manipulating Collections ...

Manipulating Collections Within PL/SQL, the collections add procedural power and flexibility. The biggest benefit is that your program can compute subscripts to process the spec

Implicit cursor attributes, Implicit Cursor Attributes The Implicit cur...

Implicit Cursor Attributes The Implicit cursor attributes returns the information about the execution of an INSERT, DELETE, UPDATE, or SELECT INTO statement. The cursor attribu

Biconditional - sql, Biconditional - SQL The biconditional p ↔ q can b...

Biconditional - SQL The biconditional p ↔ q can be expressed in Tutorial D by p = q and the same is true of SQL. The question then arises as to whether, in SQL, p = q is equiv

Unnest operator in sql, UNNEST operator in SQL The inverse operator of...

UNNEST operator in SQL The inverse operator of GROUP is UNGROUP. SQL has an operator, UNNEST, that can be used for similar purposes, but its method of invocation is somewhat p

Initializing and referencing collections, Initializing and Referencing Coll...

Initializing and Referencing Collections Until you initialize a collection, a nested table or varray is automatically null (i.e. the collection itself is null, not its elements)

%rowtype - cursors, %ROWTYPE: This attribute gives a record type which ...

%ROWTYPE: This attribute gives a record type which represents a row in the database table or a row fetched from a formerly declared cursor. The Fields in the record and corresp

Sql cursor - syntax, SQL Cursor   The Oracle implicitly opens a cursor...

SQL Cursor   The Oracle implicitly opens a cursor to process each SQL statement not related with an explicit cursor. The PL/SQL refers to the most current implicit cursor as t

Sql script to create and populate the tables, Create the four tables and po...

Create the four tables and populate them with the given data. Answer the following queries in SQL. 1. Get all part-color/part-city combinations. Note: Here and subsequently, the

Advantages of packages, Advantages of Packages The benefits of the Pack...

Advantages of Packages The benefits of the Packages are as shown below: Modularity The Packages encapsulate logically associated items, types, and subprograms in the

Block structure in pl/sql, Block Structure The PL/SQL is a block-struct...

Block Structure The PL/SQL is a block-structured language. That is, the fundamental units (procedures, anonymous blocks, and functions) that make up a PL/SQL program are logi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd