seniorADO.NET
What is SqlCommand?
Updated Feb 20, 2026
Short answer
SqlCommand is used to execute SQL queries or stored procedures.
Deep explanation
Supports:
TypeScript
- ExecuteReader()- ExecuteNonQuery()- ExecuteScalar()Real-world example
SqlCommand cmd = new SqlCommand("SELECT * FROM Users", con);
Common mistakes
- - SQL injection risks
- - Not parameterizing queries
Follow-up questions
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