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Db2
Firebird
MariaDB
MySQL
Node.js
Oracle
Postgres
SQLite
SQL Server
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
5.5
5.6
5.7
8.0
18
11g Release 2
18c
21c
23c
8.4
9.3
9.4
9.5
9.6
10
11
12
13
14
15
16
3.8
3.16
3.27
3.39
2012
2014
2016
2017
2017 (Linux)
2019
2019 (Linux)
2022
2.11
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
no sample DB
no sample DB
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CREATE TABLE T( [Column A] VARCHAR(50) ); INSERT INTO T VALUES ('Item 1'); INSERT INTO T VALUES ('Item 1'); INSERT INTO T VALUES ('Item 2'); INSERT INTO T VALUES ('Item 3'); SELECT [Column A],COUNT(*) /CAST ((SELECT COUNT(*) FROM T) AS FLOAT) FROM T GROUP BY [Column A]
Column A
(No column name)
Item 1
0.5
Item 2
0.25
Item 3
0.25