如何在PLSQL过程中做简单数组

时间:2012-08-08 12:38:59

标签: sql oracle plsql procedure

如何在plsql中执行类似简单数组的操作?最好用例子来解释。

让我们看看我有什么

PROCEDURE MyProcedure(name varchar2 := '', father varchar2 := '', description varchar2 := '') IS 
        BEGIN
            UPDATE BC_ACTIONTYPEGROUP SET
                ColumnName = name,
                ColumnFather = father,
                ColumnDecription = description
            WHERE
                ColumnName = name;
            IF SQL%ROWCOUNT = 0 THEN
                INSERT INTO TableNames  (ColumnName, ColumnFather, ColumnDescription)
                VALUES (name, description, father);
            END IF;
        END;
/
MyProcedure('John',     '', 'Little John has three brothers');
MyProcedure('George',   'YES',  'George is father of John');

我需要这样的东西

MyProcedure(name=>'John', description=>'Little John has three brothers');
MyProcedure(name=>'George', father=>'YES',  description=>'George is father of John');

有可能吗?或者在程序中如何使用这样的东西最简单的方法是什么。

我是IT的新生,所以感谢任何建议。

1 个答案:

答案 0 :(得分:1)

我不确定您是否在寻找数组或哈希表(关联数组)。

阵列很简单:

declare
TYPE names IS VARRAY(6) OF VARCHAR2(20) ;
name names;
name names.extend(1);
begin
name(1) := 'John Doe';
end;

参考:
http://docs.oracle.com/cd/B10500_01/appdev.920/a96624/05_colls.htm

对于关联数组,您必须定义一个类型,如:

TYPE my_type IS TABLE OF VARCHAR2(256) INDEX BY VARCHAR2(5);
-- Declare actual associative array using new data type.
my_array my_type;
my_key VARCHAR2(5);

看看这个:

http://javaconfessions.com/2008/08/associative-arrays-hashtables-for-plsql.html

http://tylermuth.wordpress.com/2008/02/21/plsql-associative-arrays/

然后按照以下步骤将数组传递给函数或过程:

How to use pass an array in PL/SQL function