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db<>fiddle
Db2
Firebird
MariaDB
MySQL
Node.js
Oracle
Postgres
SQL Server
SQLite
TimescaleDB
YugabyteDB
Developer-C 11.1
3.0
4.0
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.11
11.4
5.5
5.6
5.7
8.0
8.4
18
11g Release 2
18c
21c
23c
8.4
9.3
9.4
9.5
9.6
10
11
12
13
14
15
16
17
2012
2014
2016
2017
2017 (Linux)
2019
2019 (Linux)
2022
3.8
3.16
3.27
3.39
2.11
2.14
2.6
2.8
2.18
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Sakila
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AdventureWorks
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AdventureWorks
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no sample DB
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WITH yourTable AS ( SELECT 'a' AS col UNION ALL SELECT 'b' UNION ALL SELECT 'c' UNION ALL SELECT 'c' UNION ALL SELECT 'c' UNION ALL SELECT 'a' UNION ALL SELECT 'a' ) SELECT col, ROW_NUMBER() OVER (PARTITION BY col ORDER BY col) cn FROM yourTable;
col
cn
a
1
a
2
a
3
b
1
c
1
c
2
c
3