DECLARE
v_test_nbr NUMBER;
v_check_exists NUMBER;
BEGIN
BEGIN
v_test_nbr := to_number(:P6_TEXT_FIELD);
EXCEPTION
WHEN OTHERS THEN
-- or catch 1722 (invalid number) and 6502 (char to number conversion error)
v_test_nbr := NULL;
END;
IF v_test_nbr IS NOT NULL
THEN
-- if v_test_nbr is not null then the field should be numerically valid
-- if it isn't then this code would be skipped and this validation
-- will not throw an error.
-- However, the previous validation will still fail when text is entered,
-- so this shouldn't matter.
BEGIN
SELECT 1
INTO v_check_exists
FROM my_table
WHERE column_name = :P6_TEXT_FIELD;
EXCEPTION
WHEN no_data_found THEN
v_check_exists := 0;
END;
IF v_check_exists = 1
THEN
RETURN 'A record with this key already exists';
END IF;
END IF;
RETURN NULL;
END;
No. | Subject | Author | Date | Views |
---|---|---|---|---|
39 | Fundamentals of PL/SQL | admin | 2016.05.10 | 2053 |
38 | IMP | admin | 2018.10.08 | 745 |
37 | JK | admin | 2019.02.05 | 717 |
36 | APEX Password Change | admin | 2016.08.26 | 469 |
35 | Membership Management | admin | 2016.06.09 | 454 |
34 | control break | admin | 2016.06.25 | 411 |
33 | APEX Web Services Proxy Settings | admin | 2016.06.07 | 380 |
32 | ADD_PRIVILEGE (2nd STEP) | admin | 2016.06.07 | 373 |
31 | DBMS_NETWORK_ACL_ADMIN | admin | 2016.06.07 | 372 |
30 | DBMS_NETWORK_ACL_ADMIN | admin | 2016.06.07 | 357 |
29 | Access Control List (ACL) | admin | 2016.06.07 | 355 |
28 | function get area | admin | 2016.06.08 | 345 |
27 | How to set a proxy in UTL_HTTP | admin | 2016.06.07 | 341 |
26 | CREATE_ACL (1st STEP) | admin | 2016.06.07 | 329 |
25 | ACL 보기 | admin | 2016.06.07 | 324 |
24 | Assign a network host to Access Control List | admin | 2016.06.07 | 321 |
23 | CAPTCHA PLUG-IN | admin | 2016.05.27 | 314 |
22 | Oracle 11g Access Control List for External Network Services | admin | 2016.06.07 | 310 |
» | Validation to detect text in numeric field | admin | 2018.05.19 | 263 |
20 | Change Admin PASSWORD | admin | 2018.07.31 | 251 |