PL/SQL程序有3种模式:IN (default),IN OUT,OUT (1)、IN 模式参数是一个常量 IN模式参数是一个常量必须被看作常量。下面的过程将不能编译成功以为第3行是一个IN模式变量 PROCEDURE print_next_value(v_data IN INTEGER) IS BEGIN v_data := v_data+1; -- compile error dbms_output.put_line(v_data...
首先,我们需要登录需要执行sql文件的用户,在我们确保sql文件无误的情况下,进入plsqldeveloper: 1,找到tools---》import tables ---》选择sql insert,不要选中sqlplus,选择最下面的那个导入sql文件,选中好sql文件后,点击import就会执行sql语句,生成日志。 2,如果执行sql语句中出现问题或者创建表后,有一些数据需要重新...
plsql CREATE OR REPLACE PROCEDURE update_employee_salary ( p_employee_id IN NUMBER, p_new_salary IN NUMBER ) IS BEGIN -- 更新员工的薪水 UPDATE employees SET salary = p_new_salary WHERE employee_id = p_employee_id; -- 检查更新是否成功 IF SQL%NOTFOUND THEN RAISE_APPLICATION_ERROR(-20001...
This Oracle tutorial explains how tocreate and drop proceduresin Oracle/PLSQL with syntax and examples. Create Procedure Just as you can in other languages, you can create your own procedures in Oracle. Syntax The syntax to create a procedure in Oracle is: CREATE [OR REPLACE] PROCEDURE procedu...
[oracle@localhost notes]$ vim s73.sql CREATE OR REPLACE PROCEDURE query_emp (p_id IN employees.employee_id%TYPE, p_name OUT employees.last_name%TYPE, p_salary OUTemployees.salary%TYPE) IS BEGIN SELECT last_name,salary INTO p_name, p_salary ...
Oracle/PLSQL: Creating Procedures In Oracle, you can create your own procedures. The syntax for a procedure is: CREATE [OR REPLACE] PROCEDURE procedure_name [ (parameter [,parameter]) ] IS [declaration_section] BEGIN executable_section
In thePL SQL Operators And Control Statements Tutorialof thePL/SQL series, we learned about different PL SQL Operators and Control Statements like if-then-else, for loop, while loop, etc. with sample code examples. In this article, we will discuss the subprograms that PL/SQL supports. Also...
可以使用 SQL PL 在 SQL 过程中实现过程逻辑。 SQL PL 语句主要用于 SQL 过程。SQL 过程可包含用于查询和修改数据的基本 SQL 语句,但它们也可包含用于在其他 SQL 语句周围实现控制流逻辑的 SQL PL 语句。可在 SQL 过程中使用一组完整的 SQL PL 语句。 SQL 过程还支持参数、变量、赋值语句、功能强大的条件和...
Learn how to create and manage PL/SQL procedures with examples. Master the use of procedures in PL/SQL to improve your database programming skills.
Invocation references to PL/SQL procedures within PL/SQL contexts can be compiled by the data server. Function invocation syntax support (PL/SQL) A number of procedures support function invocation syntax in a PL/SQL assignment statement.