PLS-00382 Error in procedure

Question

I have a procedure (below) that is invalid. Last night the instance of the database I'm working in got refreshed (data only) and a few of my procedures were invalidated, including this one. When I tried to recreate it I got the following error:
PLS-00382: expression is of wrong type
I don't understand why it's now not working (worked fine yesterday), or what this error means in relation to the statement.
Does anyone know what I'm doing wrong here?
Thanks,
Pete
SQL> CREATE OR REPLACE PROCEDURE nyp.WBS_NOTE
2 IS
3 CURSOR C_WBS_NOTES IS
4 SELECT * FROM WBS_NOTES;
5 V_WBS_ID NUMBER;
6 V_WBSMEMO_ID NUMBER;
7 V_PROJ_ID NUMBER;
8 V_WBS_VAL VARCHAR2(200);
9 V_WBS_PARENT VARCHAR2(200);
10
11 BEGIN
12 UPDATE
13 WBS_NOTES W
14 SET W.TEXT = REPLACE(W.Text, 'CHR(13)', '
15 ');
16 INSERT INTO WBS_NOTE_PROJ_NOT_FOUND
17 SELECT *
18 FROM WBS_NOTES W WHERE EXISTS(
19 SELECT 'A'
20 FROM ACC_CONV_PROJ_NOT_FOUND P
21 WHERE W.Project_num = P.Project_num);
22 DELETE
23 FROM WBS_NOTES W WHERE EXISTS(
24 SELECT 'A'
25 FROM ACC_CONV_PROJ_NOT_FOUND P
26 WHERE W.Project_num = P.Project_num);
27 FOR NOTES IN C_WBS_NOTES LOOP
28 SELECT P.PROJ_ID
29 INTO V_PROJ_ID
30 FROM PROJECT P
31 WHERE P.PROJ_SHORT_NAME = NOTES.PROJECT_NUM;
32 V_WBS_VAL := NOTES.WBS;
33 V_WBS_PARENT := SUBSTR(V_WBS_VAL, 1, INSTR(V_WBS_VAL, '.', -1) - 1);
34 WHILE INSTR(V_WBS_PARENT, '.') <> 0 LOOP
35 V_WBS_PARENT := SUBSTR(V_WBS_PARENT, INSTR(V_WBS_PARENT, '.') + 1, 200);
36 END LOOP;
37 V_WBS_VAL := SUBSTR(V_WBS_VAL, INSTR(V_WBS_VAL, '.') + 1, 200);
38 WHILE INSTR(V_WBS_VAL, '.') <> 0 LOOP
39 V_WBS_VAL := SUBSTR(V_WBS_VAL, INSTR(V_WBS_VAL, '.') + 1, 200);
40 END LOOP;
41 SELECT W.WBS_ID
42 INTO V_WBS_ID
43 FROM PROJWBS W
44 , PROJWBS PW
45 WHERE UPPER(W.WBS_NAME) = UPPER(V_WBS_VAL)
46 AND PW.PROJ_ID = V_PROJ_ID
47 AND PW.WBS_ID = W.PARENT_WBS_ID
48 AND UPPER(PW.WBS_SHORT_NAME) = UPPER(V_WBS_PARENT);
49 GETNEXTKEYS('wbsmemo_wbs_memo_id', 1, V_WBSMEMO_ID);
50 EXECUTE IMMEDIATE
51 ' INSERT INTO WBSMEMO ' ||
52 ' SELECT ' || V_WBSMEMO_ID ||
53 ', ''' || V_PROJ_ID || '''' ||
54 ', ''' || V_WBS_ID || '''' ||
55 ', MT.MEMO_TYPE_ID ' ||
56 ', ''' || NOTES.TEXT || '''' ||
57 ' FROM MEMOTYPE MT ' ||
58 ' WHERE MT.MEMO_TYPE = ''' || NOTES.NTBKTYPE || '''';
59 END LOOP;
60 END;
61 /
Warning: Procedure created with compilation errors.
SQL> SHOW ERRORS
Errors for PROCEDURE NYP.WBS_NOTE:
LINE/COL ERROR
50/2 PL/SQL: Statement ignored
51/2 PLS-00382: expression is of wrong type

Answer 1

There could be data type mis-match within the time you re-compiled the program. Check the data type for which you are Inserting / Updating with the values you are actually using to populate.
Note:
Insert into TABLE1
Select * from TABLE2.
It is not advisible to have the above statement
eventhough this will work as long as
the fields in table TABLE1 and TABLE2 are same.
Instead of "*" use the filed names.
CRAMANA