Wednesday, October 21, 2009

PL/SQL Programming 2


Fall into Autumn 1, originally uploaded by Three Headed Dragon.

ALPHABET SOUP
Just like any language, there is a set of characters. For PL/SQL, here they are:
A-Z and a-z (letters)
0-9 (digits)
Spaces, tabs, carrigae returns(white spaces)
+ - * / <>= (mathematical symbols)
( ){ }[ ] ? !~ ; : . '" @ % $ ^ & _ | (punctuation symbols)

VOCABULARY
Like any language, if you don't build vocabulary, you won't be able to communicate. Here are a few basic vocabulary.

Indentifier: these are used to name plsql variables, objects etc that are containers that contains resources that you will use in your program to perform tasks.

Reserved Words: these are identifier reserved for system use. They can not be used to name your own identifiers.

Delimiters: they are used to separate identifiers.

Literals: they are made of the alphatec mentioned above but are not identifiers.

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