Assignment statement in pl sql, PL-SQL Programming

Assignment Help:

Assignment Statement:

The assignment statement sets the present value of the variable, parameter, field, or element. The statement consists of an assignment target followed by an assignment operator and an expression. Whenever the statement is executed, the expressions evaluate and the resulting value is stored in the target.

 

1257_assignment statement.png

 Keyword and Parameter Description

1) collection_name:

These identify an index-by table, nested table, or varray previously declared within the present scope.

2) cursor_variable_name:

These identify a PL/SQL cursor variable formerly declared within the present scope. Only the value of the other cursor variable can be assigned to a cursor variable.

3) host_cursor_variable_name:

These identify a cursor variable declared in the PL/SQL host atmosphere and passed to the PL/SQL as a bind variable. The host cursor's datatype variable is well-suited with the return type of any PL/SQL cursor variable. The host variables have to be prefixed with a colon.

4) host_variable_name:

These identify a variable declared in the PL/SQL host atmosphere and passed to the PL/SQL as a bind variable. The host variables should be prefixed with a colon.

5) object_name:

These identify an object (instance of the object type) formerly declared within the present scope.

6) indicator_name:

These identify an indicator variable declared in a PL/SQL host atmosphere and passed to the PL/SQL. The Indicator variables should be prefixed with a colon. The indicator variable "indicates" the value or condition of its related host variable. For illustration, in the Oracle Precompiler atmosphere, the indicator variables let you detect nulls or truncated values in the output host variables.

7) parameter_name:

These identify the formal OUT or IN OUT parameter of the subprogram in which the assignment statement become visible.

 8) index:

This is a numeric expression that should results a value of the type BINARY_INTEGER or a value implicitly convertible to that datatype.

9) record_name.field_nameP:

These identify the field in a user-defined or %ROWTYPE record earlier declared within the present scope.

10) variable_name:

These identify a PL/SQL variable earlier declared within the present scope.


Related Discussions:- Assignment statement in pl sql

Iteration schemes- iterative control, Iteration Schemes The bounds of a ...

Iteration Schemes The bounds of a loop range can be variables, literals, variables, or expressions but must compute to integers. Below are some of the examples. As you can see t

Packaging cursors, Packaging Cursors   You can split a cursor specific...

Packaging Cursors   You can split a cursor specification from its body for placement in a package. In that way, you can change the cursor body without changing the cursor spec

Recursion versus iteration, Recursion versus Iteration Dissimilar the i...

Recursion versus Iteration Dissimilar the iteration, recursion is not crucial to PL/SQL programming. Any problem which can be solved using recursion can be solving using the it

Example of using aggregation on nested tables, Example of Using Aggregation...

Example of Using Aggregation on Nested Tables Example: How many students sat each exam WITH C_ER AS (SELECT CourseId, CAST (TABLE (SELECT DISTINCT StudentId, Mark FROM EXAM

Positional notation, Positional Notation The first procedure call uses...

Positional Notation The first procedure call uses the positional notation. The PL/SQL compiler relates the first actual parameter, account, with the first proper parameter, ac

Create Tables, Hi there, I have the final part of a submission to do, it ...

Hi there, I have the final part of a submission to do, it is a demonstration that takes place tomorrow. I do not have to use previous information, but i have resources that sho

Join query, Using a join on 3 tables, select 5 columns and 10 rows from the...

Using a join on 3 tables, select 5 columns and 10 rows from the 3 tables without the use of a Cartesian product Query: SELECT E.LAST_NAME, E.FIRST_NAME, S.BUILDING, S.BRAN

Full time system administrator, Need Windows and Linux system Administrator...

Need Windows and Linux system Administrator We are seeking a part time system administrator to take care of our servers. Your things to do would add, but not limited to: -

Predicate - sql, Predicate - SQL Consider the declarative sentence-a p...

Predicate - SQL Consider the declarative sentence-a proposition-that is used to introduce this topic:  "Student S1, named Anne, is enrolled on course C1." Recall that th

Fetching from a cursor variable, Fetching from a Cursor Variable The F...

Fetching from a Cursor Variable The FETCH statement retrieve rows one at a time from the product set of a multi-row query. The syntax for the same is as shown: FETCH {curso

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