SQL LIKE
Pattern matching for text — case-sensitive by default in Postgres.
What & Why
LIKE matches text against a pattern using two wildcard characters: % (any sequence of characters, including none) and _ (exactly one character).
See How It Works
BUSINESS QUESTION
Find campaigns whose names end with 'ing'.
| 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 |
Watch like check each rowRow 1 of 4
-- checking Spring Launch: 'Spring Launch' LIKE '%ing'?FALSE — dropped| name |
|---|
| Spring Launch |
| Retention Webinar |
| Finance Retargeting |
| Enterprise Search |
name LIKE '%ing' is false for Spring Launch.
EXAMPLE QUERY
SELECT name FROM marketing.campaigns
WHERE name LIKE '%ing';Now You Try
Practice this concept
Marketing wants leads with valid-looking email values. Find lead emails that contain an at-sign.
Available schema
marketingPrefix tables with marketing.table_name.
idemailsourcemarketing.leads| Column | Type |
|---|---|
| id | integer |
| campaign_id | integer |
| text | |
| created_at | timestamp with time zone |
| qualified_at | timestamp with time zone |
| converted_at | timestamp with time zone |
| lead_score | integer |
| source | text |
| country | text |
| archive_status | text |
query.sql
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