UPDATE CURRENT Problem

Question

I am using Oracle8i Release 8.1.6.0.0, and now I encounter an
error when running the following PL/SQL Block:
1 declare
2 cursor c1 is
3 (select k1, f1 from geotab1)
4 for update of f1;
5 cursor c2 (key_k1 in geotab1.k1%type) is
6 (select f2 from geotab2
7 where k1 = key_k1);
8 begin
9 for rec in c1 loop
10 open c2 (rec.k1);
11 fetch c2 into rec.f1;
12 if c2%found then
13 update geotab1
14 set f1 = rec.f1
15 where current of c1;
16 end if;
17 close c2;
18 end loop;
19* end;
update geotab1
ERROR at line 13:
ORA-06550: line 13, column 10:
PLS-00801: internal error [22602]
ORA-06550: line 13, column 10:
PL/SQL: SQL Statement ignored
Note that the field k1 is the primary key of geotab1, and k2 is
the primary key of geotab2. When I replace the "where current of
c1" with "where k1 = rec.k1", the error is fixed and the program
block update geotab1 correctly.
I suppose the "where current of" clause works, but I have no
idea on the meaning of the internal error [22602]. What's going
wrong? Should I patch the Oracle Server?

Answer 1

Thank you for your advice. Unfortunately, the problem still
persists when running the first block of PL/SQL you suggested:
1 DECLARE
2 CURSOR c1 is
3 (SELECT k1, f1
4 FROM geotab1)
5 FOR UPDATE OF f1;
6 var_f2 geotab2.f2%type;
7 BEGIN
8 FOR rec IN c1 LOOP
9 BEGIN
10 SELECT f2 INTO var_f2
11 FROM geotab2
12 WHERE k1 = rec.k1;
13 UPDATE geotab1
14 SET f1 = var_f2
15 WHERE CURRENT OF c1;
16 EXCEPTION
17 WHEN NO_DATA_FOUND THEN
18 NULL;
19 END;
20 END LOOP;
21* END;
DECLARE
ERROR at line 1:
ORA-06550: line 13, column 10:
PLS-00801: internal error [22602]
ORA-06550: line 13, column 10:
PL/SQL: SQL Statement ignored
I've fixed some syntax errors and remove the commit statement
inside the codes. It seems not the problem of cursor variable.
The second block of PL/SQL you suggested seems to be a better
solution, and I should have use this logic before. Instead of
using the exception NO_DATA_FOUND, I will insert "IF SQL%
NOTFOUND THEN ..." after the UPDATE statement if I want to trap
the condition. (NO_DATA_FOUND was not raised when no record was
updated.)
By the way, thank you very much for your advice.