How do I create a stored procedure in PL SQL?
Creating a Procedure
- procedure-name specifies the name of the procedure.
- [OR REPLACE] option allows the modification of an existing procedure.
- The optional parameter list contains name, mode and types of the parameters.
- procedure-body contains the executable part.
What is a stored procedure in PL SQL?
A stored procedure in PL/SQL is nothing but a series of declarative SQL statements which can be stored in the database catalogue. A procedure can be thought of as a function or a method. They can be invoked through triggers, other procedures, or applications on Java, PHP etc.
How do I execute a stored procedure in PL SQL?
Executing a PL/SQL procedure
- Right-click the procedure name and choose Run… menu item.
- Enter a value for the in_customer_id parameter and click OK button.
- The following shows the result.
How do you write a procedure in PL SQL Explain with examples?
Syntax. The syntax to create a procedure in Oracle is: CREATE [OR REPLACE] PROCEDURE procedure_name [ (parameter [,parameter]) ] IS [declaration_section] BEGIN executable_section [EXCEPTION exception_section] END [procedure_name]; When you create a procedure or function, you may define parameters.
What is difference between stored procedure and function?
The function must return a value but in Stored Procedure it is optional. Even a procedure can return zero or n values. Functions can have only input parameters for it whereas Procedures can have input or output parameters. Functions can be called from Procedure whereas Procedures cannot be called from a Function.
Why do we use procedures in PL SQL?
PL/SQL has two types of subprograms called procedures and functions. Generally, you use a procedure to perform an action and a function to compute a value. Like unnamed or anonymous PL/SQL blocks, subprograms have a declarative part, an executable part, and an optional exception-handling part.
What is difference between procedure and stored procedure?
What is the difference between procedure and function in Plsql?
Procedures are basic PL SQL blocks to perform a specific action. Functions are blocks used mainly to perform the computations. Functions must return the value. When you are writing functions make sure that you can write the return statement.
What is faster stored procedure or function?
There is no difference in speed between a query run inside a function and one run inside a procedure. Stored procedures have problems aggregating results, they cannot be composed with other stored procedures.
Can we call stored procedure in view?
Answers. No, but most-likely you can convert your stored procedure to a table-valued function. Then you can call the table-valued function in a view.
What is the difference between functions and procedures?
A function would return the returning value/control to the code or calling function. The procedures perform certain tasks in a particular order on the basis of the given inputs. A procedure, on the other hand, would return the control, but would not return any value to the calling function or the code.
Can we call function from stored procedure?
we can call a function using a select command or by using it in a stored procedure. The function would return a value as a result, therefore we need a parameter in the stored procedure as well so as to hold the result value in it.