add
remove
split
language
show hidden
hide
db<>fiddle
Db2
DuckDB
Firebird
MariaDB
MySQL
Oracle
Postgres
SQL Server
SQLite
TimescaleDB
YugabyteDB
11.1
11.5
12.1
1.4 LTS
3.0
4.0
5.0
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.11
11.4
11.8
12.3
5.5
5.6
5.7
8.0
8.4
9.7
11g Release 2
18c
21c
23ai
23c
26ai
8.4
9.3
9.4
9.5
9.6
10
11
12
13
14
15
16
17
18
19 beta 3
2012
2014
2016
2017
2017 (Linux)
2019
2019 (Linux)
2022
2025
3.8
3.16
3.27
3.39
3.45
3.53
2.11
2.14
2.28
2.6
2.8
2.18
2024.2 LTS
2025.2 LTS
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
Sakila
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
AdventureWorks
no sample DB
no sample DB
AdventureWorks
no sample DB
AdventureWorks
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
no sample DB
run
abort
markdown
clear
donate
feedback
about
By using db<>fiddle, you agree to license everything you submit by
Creative Commons CC0
.
create table t1 (c1 int, c2 int, c3 int, c4 int); create table t2 (c1 int, c2 int, c3 int, c4 int); insert into t1 (c1, c2, c3, c4) values (40, 161, 425, 702), (40, 161, 719, 791), (45, 161, 719, 791), (45, 700, 719, 791), (47, 700, 719, 791); insert into t2 (c1, c2, c3, c4) values (40, NULL, NULL, NULL), (45, 161, NULL, NULL);
7 rows affected
select * from t1 where not exists ( select 1 from t2 where t1.c1 = t2.c1 and (t1.c2 = isnull(t2.c2, t1.c2)) and (t1.c3 = isnull(t2.c3, t1.c3)) and (t1.c4 = isnull(t2.c4, t1.c4)) );
c1
c2
c3
c4
45
700
719
791
47
700
719
791