Backend
SQL
Structured Query Language, the standard language for managing and querying relational databases.
Why it matters
- Industry standard for relational data
- Powerful and expressive query capabilities
- Works across most database systems
When to use
- When working with relational databases
- When data relationships are important
- When complex queries and transactions are needed
Common mistakes
- Writing queries vulnerable to SQL injection
- Not optimizing slow queries
- Fetching more data than needed
Related terms
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