Call a Stored Function in Oracle

Q

How To Call a Stored Function in Oracle?

✍: FYIcenter.com

A

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 'FYICentere.com';
  5  END;
  6  /
Function created.

SQL> SELECT get_site() FROM dual;

GET_SITE()
---------------------------------
FYICentere.com

DUAL is not a real table or view. It is commonly used to with SELECT statement to evaluate expressions.

⇒ Drop a Stored Function in Oracle

⇐ Create a Stored Function in Oracle

⇑ Creating Oracle PL/SQL Procedures and Functions

⇑⇑ Oracle Database Tutorials

2018-10-26, 2940🔥, 0💬

Drop a Stored Function in Oracle
How To Drop a Stored Function in Oracle? If there is an existing stored function and you don't want it any more, you can remove it from the database by using the DROP FUNCTION statement as shown in the following script example: SQL> CREATE OR REPLACE FUNCTION GET_SITE 2 RETURN VARCHAR2 AS 3 B... 2018-10-26, 3832🔥, 0💬

Create a Stored Function in Oracle
How To Create a Stored Function in Oracle? A stored function is a function with a specified name and stored into the current database. If you want to create a stored function, you can use the CREATE FUNCTION statement. The example script below creates a stored procedure: SQL> CREATE OR REPLAC... 2018-11-11, 3449🔥, 0💬

Define a Sub Function in Oracle
How To Define a Sub Function in Oracle? A sub function is a function defined and used inside another procedure or function. You need to define a sub function in the declaration part of the enclosing procedure or function. Sub function definition starts with the FUNCTION key word. Here is a sample sc... 2018-03-18, 3247🔥, 0💬

Create a Stored Procedure in Oracle
How To Create a Stored Procedure in Oracle? A stored procedure is a procedure with a specified name and stored into the current database. If you want to create a stored procedure, you can use the CREATE PROCEDURE statement. The example script below creates a stored procedure: SQL> CREATE PROC... 2018-11-11, 3176🔥, 0💬

Pass Parameters to Procedures in Oracle
How To Pass Parameters to Procedures in Oracle? Store procedures or functions can take parameters. You need to define parameters while defining the procedure, and providing values to parameters while calling the procedure. The script below shows you how to do this: SQL> CREATE OR REPLACE PROC... 2018-11-11, 3057🔥, 0💬

Call a Stored Function in Oracle
How To Call a Stored Function in Oracle? 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 ... 2018-10-26, 2941🔥, 0💬

Execute a Stored Procedure in Oracle
How To Execute a Stored Procedure in Oracle? If you want to execute a stored procedure, you can use the EXECUTE statement. The example script below shows how to executes a stored procedure: SQL> set serveroutput on; SQL> CREATE PROCEDURE Greeting AS 2 BEGIN 3 DBMS_OUTPUT.PUT_LINE('Welc... 2018-11-11, 2873🔥, 0💬

Define a Sub Procedure in Oracle
How To Define a Sub Procedure in Oracle? A sub procedure is a named procedure defined and used inside another procedure or function. You need to define a sub procedure in the declaration part of the enclosing procedure or function. Sub procedure definition starts with the PROCEDURE key word. Here is... 2018-10-26, 2845🔥, 0💬

Call a Sub Procedure in Oracle
How To Call a Sub Procedure in Oracle? To call a sub procedure, just use the sub procedure name as a statement. Here is another example of calling a sub procedure: SQL> CREATE OR REPLACE PROCEDURE WELCOME AS 2 PROCEDURE WELCOME_PRINT(S CHAR) AS 3 BEGIN 4 DBMS_OUTPUT.PUT_LINE('Welcome to ' || ... 2018-10-26, 2810🔥, 0💬

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