When memory is allocated to a variable in the language PLSQL and where in the PGA?

Hi all

When and where the memory is allocated to a variable?

declare

number of my_variable;

number of my_var0;

my_var1 number: = 0;

Start

my_variable = 1;

-logical treatment

end;

In the example above

one) because my_var0 is not assigned a number of execution block will be assigned memory with a value of waste inside?

(b) where my_var1 and my_variable (and my_var0 if it is allocated memory) will have memory allocated (is it in the stack of the PGA space)?

(c) if the my_var0 is allocated memory in his statement is this rule which applies to any oracle data type defined or defined by the user files or objects viz?

Can u please help me with an informative article about the allocation of memory in Oracle. Thanks in advance.

The initial value of a PL/SQL variable is NULL if you do not provide one when it is declared.

http://docs.Oracle.com/CD/E11882_01/AppDev.112/e25519/fundamentals.htm#LNPLS195

PL/SQL variable are stored in a private SQL area Global user (UGA) area, and the UGA may be in the PGA or the SGA according to the type of connection you have.  Details of the architecture of memory are documented in the concepts guide.

Memory architecture

Tags: Database

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