How do I protect this function from SQL injection?

Question

public static bool TruncateTable(string dbAlias, string tableName)
{
    string sqlStatement = string.Format(\"TRUNCATE TABLE {0}\", tableName);
    return ExecuteNo         


        

Answer 1

CREATE OR REPLACE PROCEDURE truncate(ptbl_name IN VARCHAR2) IS
  stmt VARCHAR2(100);
BEGIN
  stmt := 'TRUNCATE TABLE '||DBMS_ASSERT.SIMPLE_SQL_NAME(ptbl_name);
  dbms_output.put_line('<'||stmt||'>');
  EXECUTE IMMEDIATE stmt;
END;