问题描述
我正在尝试将一组 (varchar) 数据传递到 Oracle 过程中.Oracle 过程可以从 SQL*Plus 或另一个 PL/SQL 过程调用，如下所示:
I'm trying to pass an array of (varchar) data into an Oracle procedure. The Oracle procedure would be either called from SQL*Plus or from another PL/SQL procedure like so:
BEGIN
pr_perform_task('1','2','3','4');
END;
pr_perform_task 将读取每个输入参数并执行任务.
pr_perform_task will read each of the input parameters and perform the tasks.
我不确定如何实现这一目标.我的第一个想法是使用 varray 类型的输入参数，但我收到 Error: PLS-00201: identifier 'VARRAY' must be债看起来像这样:
I'm not sure as to how I can achieve this. My first thought was to use an input parameter of type varray but I'm getting Error: PLS-00201: identifier 'VARRAY' must be declared error, when the procedure definiton looks like this:
创建或替换程序 PR_DELETE_RECORD_VARRAY(P_ID VARRAY) 是
总而言之，如何将数据作为数组传递，让 SP 循环遍历每个参数并执行任务?
To summarize, how can I pass the data as an array, let the SP loop through each of the parameters and perform the task ?
我使用 Oracle 10gR2 作为我的数据库.
I'm using Oracle 10gR2 as my database.
推荐答案
这是一种方法:
SQL> set serveroutput on
SQL> CREATE OR REPLACE TYPE MyType AS VARRAY(200) OF VARCHAR2(50);
2 /
Type created
SQL> CREATE OR REPLACE PROCEDURE testing (t_in MyType) IS
2 BEGIN
3 FOR i IN 1..t_in.count LOOP
4 dbms_output.put_line(t_in(i));
5 END LOOP;
6 END;
7 /
Procedure created
SQL> DECLARE
2 v_t MyType;
3 BEGIN
4 v_t := MyType();
5 v_t.EXTEND(10);
6 v_t(1) := 'this is a test';
7 v_t(2) := 'A second test line';
8 testing(v_t);
9 END;
10 /
this is a test
A second test line
为了扩展我对@dcp 的回答的评论，如果您想使用关联数组，这里是如何实现那里提出的解决方案:
To expand on my comment to @dcp's answer, here's how you could implement the solution proposed there if you wanted to use an associative array:
SQL> CREATE OR REPLACE PACKAGE p IS
2 TYPE p_type IS TABLE OF VARCHAR2(50) INDEX BY BINARY_INTEGER;
3
4 PROCEDURE pp (inp p_type);
5 END p;
6 /
Package created
SQL> CREATE OR REPLACE PACKAGE BODY p IS
2 PROCEDURE pp (inp p_type) IS
3 BEGIN
4 FOR i IN 1..inp.count LOOP
5 dbms_output.put_line(inp(i));
6 END LOOP;
7 END pp;
8 END p;
9 /
Package body created
SQL> DECLARE
2 v_t p.p_type;
3 BEGIN
4 v_t(1) := 'this is a test of p';
5 v_t(2) := 'A second test line for p';
6 p.pp(v_t);
7 END;
8 /
this is a test of p
A second test line for p
PL/SQL procedure successfully completed
SQL>
这需要创建一个独立的 Oracle TYPE(不能是关联数组)，但需要定义一个所有人都可以看到的包，以便所有人都可以使用它定义的 TYPE.
This trades creating a standalone Oracle TYPE (which cannot be an associative array) with requiring the definition of a package that can be seen by all in order that the TYPE it defines there can be used by all.
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