29 lines
794 B
Markdown
29 lines
794 B
Markdown
---
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categories:
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- Databases
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- Programming Languages
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tags: [SQL, relational-database]
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---
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# Wildcards in SQL
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SQL does not use Regex. Instead it has a simpler glob-like syntax for carrying out string matching.
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In order to signal that you wish to compare by a wildcard and not a value, you have to use the `LIKE` keyword. The actual wildcard operator is `%` .
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In an SQL statement, the `%` wild card will match any number of occurrences of any character.
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Any characters can appear before or after ‘MacBook’ and the record will still be returned:
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```sql
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SELECT name, cores, release_date
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FROM model
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WHERE name LIKE '%MacBook%';
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```
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This wildcard only filters characters that come after `Raspberry` :
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```sql
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SELECT name, cores, release_date
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FROM model
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WHERE name LIKE 'Raspberry%';
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```
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