[英]How to debug a pipelined function in PL/SQL Developer?
I have a PL/SQL package in oracle database which contains a pipelined function named FN_GET_USERINFO_ROWS as bellow: 我在oracle数据库中有一个PL / SQL包,它包含一个名为FN_GET_USERINFO_ROWS的流水线函数,如下所示:
CREATE OR REPLACE PACKAGE PKG_USERINFO AS
TYPE TY_USERINFO_RECORD IS RECORD( U_ID VARCHAR2(50),
U_NAME VARCHAR2(50),
DOB DATE);
TYPE TY_USERINFO_TABLE IS TABLE OF TY_USERINFO_RECORD;
FUNCTION FN_GET_USERINFO_ROWS(P_USER_ID IN NUMBER)
RETURN TY_USERINFO_TABLE PIPELINED;
END PKG_USERINFO;
And I'm running following test script to test pipelined FN_GET_USERINFO_ROWS at PL/SQL Developer ( File->New->Test Window ) 我正在运行以下测试脚本来测试PL / SQL Developer上的流水线FN_GET_USERINFO_ROWS ( 文件 - >新建 - >测试窗口 )
declare
result PKG_USERINFO.TY_USERINFO_TABLE;
begin
-- calling pipelined function
result := PKG_USERINFO.FN_GET_USERINFO_ROWS(P_USER_ID => :P_USER_ID);
end;
But it is showing following error: 但它显示以下错误:
ORA-06550: line 28, column 12: PLS-00653: aggregate/table functions are not allowed in PL/SQL scope ORA-06550:第28行,第12列:PLS-00653:PL / SQL范围内不允许使用聚合/表函数
How can I debug a pipelined function using PL/SQL Developer ? 如何使用PL / SQL Developer调试流水线函数?
One of the ways is to create a block with FOR-SELECT-LOOP
and put a breakpoint into the function or just log contents for each fetched row (depends on what you mean by debugging). 其中一种方法是使用FOR-SELECT-LOOP
创建一个块并将断点放入函数中,或者只记录每个读取行的内容(取决于调试的含义)。 So you can separate each PIPE ROW
execution and see its results. 因此,您可以分离每个PIPE ROW
执行并查看其结果。
Then in PL/SQL Dev choose File->Open->TestScript and run the block from opened window. 然后在PL / SQL Dev中选择File-> Open-> TestScript并从打开的窗口运行块。
DECLARE
result pkg_userinfo.ty_userinfo_table;
BEGIN
-- we call pipelined functions like this
FOR rec IN (SELECT *
FROM TABLE (pkg_userinfo.fn_get_userinfo_rows(:P_USER_ID))
-- WHERE rownum < 2
-- uncomment this line and vary amount of fetched rows
)
LOOP
dbms_output.put_line('another step : ' || rec.u_id);
END LOOP;
END;
Also I advise you to debug variants when NO_DATA_NEEDED
is being thrown. 另外,我建议你在抛出NO_DATA_NEEDED
时调试变体。 To do it add WHERE
clause limiting number of rows. 为此,添加WHERE
子句限制行数。
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