count subquery sql

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18 Jul 2020

1/*count sub query
2Depends on the use case, here are a few options*/
3
4Select Count(*) from 
5(
6--Sub query
7Select id from users 
8) as userCount
9
10Select * from 
11(
12--Sub query
13select count(id) as cnt from Users where LastPasswordChangedDate < '2021-01-01'
14) as LastPasswordChangedDate
15
16Select 
17(
18	--Sub query
19	select count(id) as cnt from Users where LastPasswordChangedDate < '2021-01-01'
20) as LastPasswordChangedDateCount
21, *
22from Users
23where LastPasswordChangedDate < '2021-01-01'

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