问题
I'm trying to debug a SELECT inside a procedure, and I'm trying to this using a anonymous block. I would like that SQL Developer simply return the last SELECT statement, but I get the error:
ORA-06550: line 21, column 5:
PLS-00428: an INTO clause is expected in this SELECT statement
Inside the procedure, I have an INTO for that select, but is there a simple way that I can simply get the results for the last SELECT statement for my debugging? I'm using anonymous block and variables so that the code is as similar as possible from what's actually inside the procedure, so that I don't have to change the code
set serveroutput on format wrapped;
DECLARE
p_cd_doc_type number;
p_dc_doc_code varchar2(200);
p_dt_base date;
p_qt_days number;
p_vl_mov_total number;
p_qt_transac number;
v_dt_max date;
v_dt_min date;
begin
p_dt_base := sysdate;
p_qt_days := 1;
v_dt_max := trunc(p_dt_base) + 1;
v_dt_min := v_dt_max - p_qt_days;
p_vl_mov_total := 0;
DBMS_OUTPUT.PUT_LINE('v_dt_max = ' || v_dt_max);
DBMS_OUTPUT.PUT_LINE('v_dt_min = ' || v_dt_min);
select *
from tb_cad_cliente a join tb_trn_transacao b
on a.cd_cliente = b.cd_cliente
where a.cd_doc_type = p_cd_doc_type
and a.dc_doc_code = p_dc_doc_code
and b.dt_row between v_dt_min and v_dt_max
and b.cd_status = 3;
end;
回答1:
You can try with this, to print your result easily:
declare
your_variable varchar2(19);
BEGIN
DBMS_OUTPUT.PUT_LINE('init..');
FOR x IN (SELECT your_column
FROM you_table
where rownum<2
order by 1)
LOOP
DBMS_OUTPUT.PUT_LINE(x.your_column);
END LOOP;
END;
回答2:
Error
For what I know, whatever tool you use to debug, the pl/sql blocks(anonymous and named) should be valid for the PL/SQL compiler. The fact is that your block doesn't result valid for the PL/SQL compiler, and your error is there to tell you, and is coming out from the PL/SQL compiler and not from the Sql Developer!
PLS-00428: an INTO clause is expected in this SELECT statement Cause: The INTO clause of a SELECT INTO statement was omitted. For example, the code might look like SELECT deptno, dname, loc FROM dept WHERE ... instead of SELECT deptno, dname, loc INTO dept_rec FROM dept WHERE ... In PL/SQL, only a subquery is written without an INTO clause. Action: Add the required INTO clause
and
ORA-06550: line string, column string: string Cause: Usually a PL/SQL compilation error. Action: None
Why error
When an Pl/sql error appear, you only have the choice to investigate in the code and in the manuals: Resolution of names in static SQL statements
PS: The route is always the same:
How to ask
All the "oracles" are here:
Sql Developer
回答3:
In order to return the value of the select it needs to be selected into a container (a reference cursor or REF CURSOR). In your Declare you should include ref_cursor_out SYS_REFCURSOR;
and change your select to:
select * into ref_cursor_out ...
In SQL Developer there is an option (I am a Toad user, so I forget where in SD) that tells the IDE to load the result set into a grid to view.
[edit: per comment from @DCookie, Thanks for the catch!]
回答4:
I recently changed from MSSQL to PLSQL and I miss the return values as tables from procedures for analytical purposes. I wrote simply dynamic query that return table by two steps. Maybe someone use it:
/*
rkry20150929: Return table from anonymous block
*/
declare
v_stmt varchar2(1000);
c int;
BEGIN
select count(*) into c from user_tables where table_name = upper('tmp_result');
if c>0
THEN
v_stmt := 'truncate table tmp_result';
execute immediate v_stmt;
v_stmt := 'drop table tmp_result';
execute immediate v_stmt;
end if;
v_stmt :='CREATE GLOBAL TEMPORARY TABLE tmp_result on commit preserve rows AS ';
v_stmt:= v_stmt ||
/*-----THERE FILL SQL COMMAND-----------*/'
SELECT ''Result select to table in anonymous block '' MyColumn FROM DUAL
';/*-----THERE FILL SQL COMMAND-----------*/
execute immediate v_stmt;
End;
/*FIRST EXECUTE TO HERE */
SELECT * FROM tmp_result;
来源：https://stackoverflow.com/questions/6455566/display-select-results-inside-anonymous-block