Database creating in Interbase/Firebird

bool CreateDatabase(const char *db_name) 
{ 
   // Constructing database creation query 
   unsigned short query_length = 19; 
   query_length += strlen(db_name); 

   char *create_db_query = new char[query_length]; 
   strcpy(create_db_query, "CREATE DATABASE '"); 
   strcat(create_db_query, db_name); 
   strcat(create_db_query, "'\0"); 

   // Creating the specified database 
   ISC_STATUS_ARRAY sts; 
   isc_tr_handle tr = NULL; 
   isc_db_handle db_handle = NULL; 

   isc_start_transaction(sts, &tr, 1, &db_handle, 0, NULL); 

   if(isc_dsql_execute_immediate(sts, &db_handle, &tr, 0, create_db_query, 1, NULL)) 
      return false; 
    
   isc_commit_transaction(sts, &tr); 

   return true; 
}