SQL IN
Check membership in a list of values — cleaner than chaining several OR conditions.
What & Why
IN checks whether a value matches any item in a list. channel IN ('google_ads', 'linkedin') means exactly the same thing as channel = 'google_ads' OR channel = 'linkedin', just shorter and more readable once the list grows past two or three values.
See How It Works
BUSINESS QUESTION
Campaigns in google_ads or linkedin.
| id | name | channel | spend | start_date | end_date | status | target_segment |
|---|---|---|---|---|---|---|---|
| 1 | Spring Launch | google_ads | 55000.00 | 2024-01-15 | 2024-03-31 | active | smb |
| 2 | Retention Webinar | 45000.00 | 2024-02-10 | 2024-04-15 | active | enterprise | |
| 3 | Finance Retargeting | 50000.00 | 2024-03-12 | 2024-05-31 | active | enterprise | |
| 4 | Enterprise Search | google_ads | 60000.00 | 2024-04-01 | 2024-06-30 | active | enterprise |
Check each campaign against the channel listRow 1 of 4
-- checking Spring Launch: 'google_ads' IN ('google_ads', 'linkedin')TRUE — kept| name | channel |
|---|---|
| Spring Launch | google_ads |
| Retention Webinar | |
| Finance Retargeting | |
| Enterprise Search | google_ads |
channel IN ('google_ads', 'linkedin') is true for Spring Launch.
EXAMPLE QUERY
SELECT name FROM marketing.campaigns
WHERE channel IN ('google_ads', 'linkedin');Now You Try
Practice this concept
Marketing wants campaigns from email, SEO, or referral channels.
Available schema
marketingPrefix tables with marketing.table_name.
namechannelstatusmarketing.campaigns| Column | Type |
|---|---|
| id | integer |
| name | text |
| channel | text |
| spend | numeric |
| start_date | date |
| end_date | date |
| status | text |
| target_segment | text |
| legacy_id | text |
query.sql
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