How do you return in PL SQL?

How do you return in PL SQL?

If you want to have RETURN value as return from the PL/SQL call, then use FUNCTION . Please note that in case, you would be able to return only one variable as return variable.

What does a RETURN statement in a function do in PL SQL?

The RETURN statement immediately completes the execution of a subprogram and returns control to the caller. Execution resumes with the statement following the subprogram call. In a function, the RETURN statement also sets the function identifier to the return value.

Can a PL SQL function return 2 values?

A pl/sql function can return multiple values by using the pipe row or we call it as PIPELINED FUNCTIONS.

Which must have to return value in PL SQL?

The main difference between procedure and a function is, a function must always return a value, and on the other hand a procedure may or may not return a value. Except this, all the other things of PL/SQL procedure are true for PL/SQL function too.

How many return statements can a function have in PL SQL?

one RETURN statement
A function can have more than one RETURN statement. All the RETURN statements is executed each time the function is called. The RETURN statement can accept any expression for evaluation and return.

How many return are possible in function and procedure?

There are three ways of returning data from a procedure to a calling program: result sets, output parameters, and return codes.

How many RETURN statements can a function have in PL SQL?

How can I return multiple values from a function in PL SQL?

CREATE OR REPLACE FUNCTION GET_FREE_SEAT(P_NO VARCHAR2, ID NUMBER, RESERVE_TIME NUMBER) RETURN INTEGER AS RESERVED_SEAT_NO VARCHAR2(100) := ‘NULL’; RES INTEGER := 0; — Assume Success Scenario from the Get-go BEGIN SELECT SEAT_NO INTO RESERVED_SEAT_NO FROM SEAT WHERE RESERVED IS NULL AND BOOKED IS NULL AND ROWNUM = 1 …

How a function can return multiple values?

You can return multiple values by bundling those values into a dictionary, tuple, or a list. These data types let you store multiple similar values. You can extract individual values from them in your main program. Or, you can pass multiple values and separate them with commas.

How many return statements can a function have in Plsql?

A function can have more than one RETURN statement. All the RETURN statements is executed each time the function is called. The RETURN statement can accept any expression for evaluation and return.

How many return statements can a function have?

The body of a function should have only one return statement.

How do you return a function in PL SQL?

In functions, a RETURN statement must contain an expression, which is evaluated when the RETURN statement is executed. The resulting value is assigned to the function identifier. In functions, there must be at least one execution path that leads to a RETURN statement. Otherwise, PL/SQL raises an exception at run time.

What are funfunctions in PL/SQL?

Functions in PL/SQL. A function can be used as a part of SQL expression i.e. we can use them with select/update/merge commands. One most important characteristic of a function is that unlike procedures, it must return a value.

What is declaring defining and invoking a PL/SQL function?

Let’s take an example to demonstrate Declaring, Defining and Invoking a simple PL/SQL function which will compute and return the maximum of two values. Let’s take a customer table. This example illustrates creating and calling a standalone function. This function will return the total number of CUSTOMERS in the customers table.

What is a function in SQL Server?

A function can be used as a part of SQL expression i.e. we can use them with select/update/merge commands. One most important characteristic of a function is that unlike procedures, it must return a value. Syntax to create a function: function which will compute and return the reverse of a number.