Fundamentals of InfoSecadvanced
Order the steps for securely executing a database query that incorporates user input using a prepared statement.
Answer
Validate and sanitize the incoming user input, Prepare the SQL statement with parameter placeholders, Bind the user input to the query placeholders, Execute the prepared statement
Explanation
### The order
1. **Receive and validate the user's input**: check that it meets expected requirements.
2. **Prepare the SQL command structure**: define the query separately from user values.
3. **Bind the input as a parameter rather than joining it into the SQL text**: preserve the distinction between command and data.
4. **Execute the prepared statement with the bound value**: run the query using the separated parameter.
### Terms
- **SQL**: Structured Query Language, used to issue database commands.
- **Prepared statement**: a query structure prepared separately from its values.
- **Parameter**: a value supplied to a query separately from its command text.
### Remember
Validate input, keep query structure separate, bind values, then execute.
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