Question
What is a bind variable and how is it used?
Answers
A bind variable is a variable within a SQL statement that has to be replaced by a valid value on the successful execution of the statement. This value can be referenced into the PL/SQL block. Bind variable is always preceded by a colon (:), as shown in the following code:

Declare
y_emp_age number;
Begin
Select emp-age into :v_empLage from t_employee
where emp_code.121;
End;

In the preceding code, v_emp_age is a bind variable.   Your Comment




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