Plsql 从ref游标向客户端返回值

将ref cursor返回给客户端意味着什么，以及如何将ref cursor值传递给oracle中的其他程序。请帮帮我

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提前感谢

好的，下面是一个在sqlplus中返回ref游标的过程、函数和匿名块的示例：

ops$tkyte@ORA817DEV.US.ORACLE.COM> create or replace package types
2 as
3 type rc is ref cursor;
4 end;
5 /

包已创建

ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM> create or replace procedure get_cursor_proc( p_cursor in out types.rc )
2 is
3 begin
4 open p_cursor for select * from dual;
5 end;
6 /

ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM> create or replace function get_cursor_func return types.rc
2 as
3 l_cursor types.rc;
4 begin
5 open l_cursor for select * from dual;
6 return l_cursor;
7 end;
8 /

程序已创建

ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM> create or replace procedure get_cursor_proc( p_cursor in out types.rc )
2 is
3 begin
4 open p_cursor for select * from dual;
5 end;
6 /

ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM> create or replace function get_cursor_func return types.rc
2 as
3 l_cursor types.rc;
4 begin
5 open l_cursor for select * from dual;
6 return l_cursor;
7 end;
8 /

函数已创建

ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM> variable x refcursor
ops$tkyte@ORA817DEV.US.ORACLE.COM> set autoprint on
ops$tkyte@ORA817DEV.US.ORACLE.COM>
ops$tkyte@ORA817DEV.US.ORACLE.COM> REM procedure
ops$tkyte@ORA817DEV.US.ORACLE.COM> exec get_cursor_proc(:x)

PL/SQL过程已成功完成

D X

PL/SQL过程已成功完成

D X

PL/SQL过程已成功完成

D X