Question

我想为以下查询创建PL / SQL存储过程：

SELECT order_id, order_date,  customer_id
FROM Orders 
INNER JOIN Customers ON Orders.customer_id = Customers.customer_id
WHERE order_id = xyz;

我想通过order_id作为存储过程中的输入参数。有人可以为此分享PL / SQL代码吗？

Answer 1

尝试使用此功能

   CREATE OR REPLACE FUNCTION fn_test(p1 IN NUMBER)
    RETURN VARCHAR2
    IS

    s_query_stmt     VARCHAR2(1000 CHAR);
    r1               VARCHAR2(100 CHAR);
    r2               VARCHAR2(100 CHAR);
    r3               VARCHAR2(100 CHAR);

   BEGIN

   s_query_stmt := 'Select order_id, order_date, customer_id 
                    From Orders inner join Customers 
                    On Orders.customer_id = Customers.customer_id
                   WHERE order_id = :x )';

   EXECUTE IMMEDIATE s_query_stmt INTO r1, r2, r3 USING p1;
   return 'x';

  END;

Answer 2

返回这些值的过程的最简单形式是这样的（：

PROV_RSA_AES

请注意，您不需要连接到create or replace procedure retrieve_order_values( p_order_id IN Orders.order_id%type , p_order_date OUT Orders.order_date%type , p_customer_id OUT Orders.customer_id%type ) is begin select order_date, customer_id into p_order_date, p_customer_id from orders where order_id = p_order_id; end retrieve_order_values;表即可检索customer_id。

内部联接和where子句的PL / SQL过程

2 个答案: