Definition:SQL Injection (SQLi)
SQL Injection is a code injection vulnerability where malicious SQL statements are executed by backend database drivers.
Detailed Technical Explanation
Business Perspective
Preventing SQL injection protects enterprise databases from unauthorized data theft, modification, or deletion.
Technical Perspective
Mitigated by using parameterized queries, prepared statements, or battle-tested ORM database drivers.
Real-World Example
Entering `' OR '1'='1` into a login form to bypass password checks if queries lack parameterization.
Common Architectural Mistakes
- ✗String Concatenation in Queries: Building raw SQL query strings using string concatenation instead of parameterized placeholders.
Ecosystem Integration
Engineering Services & Solutions
Technology Hub
Frequently Asked Questions
How to prevent SQL Injection completely?
Always use parameterized queries or ORMs (Prisma/TypeORM) that escape inputs automatically.
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Related Glossarys
CQRS (Command Query Responsibility Segregation)
CQRS is a pattern that separates read data operations (Queries) from write data operations (Commands) into distinct models.
Database Replication
Database Replication copies data from a primary write node to multiple read-replica follower servers in real time.
NewSQL
NewSQL databases combine the relational ACID compliance of SQL with the horizontal multi-region scalability of NoSQL.
Authorization
Authorization is the process of determining whether an authenticated user or system has permission to perform a specific action on a resource.
Encryption
Encryption is the process of encoding plain text information into unreadable ciphertext using mathematical cryptographic keys.
Role-Based Access Control (RBAC)
Role-Based Access Control (RBAC) is an authorization model that assigns permissions to defined Roles rather than individual users.