Basic Oracle Concepts and Programming Question:
How To Call a Stored Function in Oracle?
Answer:
A stored function can be called as part of expression in any PL/SQL statement. One simplest way to call a stored function is to a dummy SELECT statement as shown in the following tutorial script using SQL*Plus:
SQL> CREATE OR REPLACE FUNCTION GET_SITE
2 RETURN VARCHAR2 AS
3 BEGIN
4 RETURN 'globalguidelinee.com';
5 END;
6 /
Function created.
SQL> SELECT get_site() FROM dual;
GET_SITE()
---------------------------------
globalguidelinee.com
DUAL is not a real table or view. It is commonly used to with SELECT statement to evaluate expressions.
SQL> CREATE OR REPLACE FUNCTION GET_SITE
2 RETURN VARCHAR2 AS
3 BEGIN
4 RETURN 'globalguidelinee.com';
5 END;
6 /
Function created.
SQL> SELECT get_site() FROM dual;
GET_SITE()
---------------------------------
globalguidelinee.com
DUAL is not a real table or view. It is commonly used to with SELECT statement to evaluate expressions.
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