Question: The developer noticed that the block of code he had written to fetch the transaction details of the user's credit card info into the user

The developer noticed that the block of code he had written to fetch the transaction details of the user's credit card info into the user interface for processing is vulnerable to unauthorized access.
He identified by using the DBMS_ASSER package, he can prevent SQL injection. Choose the correct options which will help him to meet the requirements.
Input string length should be limited
Verify qualified SQL names
Validated the existing schema name
Validate the TNS connect string
 The developer noticed that the block of code he had written

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