A delimiter is a simple or compound symbol that has a special meaning in PL/ SQL.
DelimiterDescription
+, -, *, /Addition, subtraction/negation, multiplication, division
%Attribute indicator
'Character string delimiter
.Component selector
(,)Expression or list delimiter
:Host variable indicator
,Item separator
"Quoted identifier delimiter
=Relational operator
@Remote access indicator
;Statement terminator
:=Assignment operator
=Association operator
||Concatenation operator
**Exponentiation operator
Label delimiter (begin and end)
/*, */Multi-line comment delimiter (begin and end)
--Single-line comment indicator
..Range operator
, =Relational operators
, '=, ~=, ^=Different version of NOT EQUAL