functionsandstored procedurescan be used in other database systems like Sybase , Microsoft SQL server etc, with some change inSQL syntax. This PL/SQL tutorial will be growing regularly; let us know if any topic related to PL SQL needs to be added or you ...
PL/SQL Function– explains what PL/SQL functions are and shows you how to create PL/SQL functions. PL/SQL Procedure– discusses PL/SQL procedures and shows you how to create PL/SQL procedures. PL/SQL Nested Block– explains what a PL/SQL nested block is and how to apply it in PL/SQL...
Creating PL/SQL Procedures and Functions Functions and Procedures are reusable code blocks that perform specific tasks: Procedure Example: CREATE OR REPLACE PROCEDURE greet_employee (emp_name IN VARCHAR2) AS BEGIN DBMS_OUTPUT.PUT_LINE('Hello, ' || emp_name); END; Function Example: CREATE OR ...
The Exception section of a PL/SQL Block starts with the reserved keyword EXCEPTION. This section is optional. Any errors in the program can be handled in this section so that the PL/SQL Blocks terminates gracefully. If the PL/SQL Block contains exceptions that cannot be handled, the Block t...
This Oracle tutorial explains how to create and drop procedures in Oracle / PLSQL with syntax and examples. In Oracle, you can create your own procedures. The syntax for a procedure is:
1> CREATE OR REPLACE PROCEDURE emp_name (id IN NUMBER, emp_name OUT NUMBER) 2> IS 3> BEGIN 4> SELECT first_name INTO emp_name 5> FROM emp_tbl WHERE empID = id; 6> END; 7> / We can call the procedure ‘emp_name’ in this way from a PL/SQL Block. ...
Step 2. Choose theDrop…menu option Step 3. In the Prompts dialog, click theApplybutton to remove the procedure. In this tutorial, you have learned how to create a PL/SQL procedure and execute it from Oracle SQL Developer.
A collection method is a dot notation-based built-in function or procedure that acts on collections. In terms of collecting techniques, the following apply: SQL statements are unable to call collection methods. Associative arrays cannot be utilized with EXTEND and TRIM. Functions include EXISTS, CO...
A function is a named PL/SQL Block which is similar to a procedure. The major difference between a procedure and a function is, a function must always return a value, but a procedure may or may not return a value. General Syntax to create a function is ...
原文参考:http://plsql-tutorial.com/ PL/SQL存储过程 存储过程相当于一个有名字的PL/SQL块,经过第一次编译后再次调用时不需要再次编译 创建格式: CREATE [OR REPLACE]PROCEDUREproc_name [list of parameters] IS Declaration section BEGIN Execution section ...