public static int sqlite3_bind_parameter_index(Sqlite3StmtHandle pStmt, string zName)
 {
     var ptr = MarshalEx.StringToHGlobalUTF8(zName);
     try
     {
         return sqlite3_bind_parameter_index(pStmt, ptr);
     }
     finally
     {
         if (ptr != IntPtr.Zero)
         {
             Marshal.FreeHGlobal(ptr);
         }
     }
 }

 public static int sqlite3_bind_text(Sqlite3StmtHandle pStmt, int i, string data, IntPtr xDel)
 {
     int nLen;
     var zData = MarshalEx.StringToHGlobalUTF8(data, out nLen);
     try
     {
         return Sqlite3.bind_text(pStmt, i, zData, nLen, xDel);
     }
     finally
     {
         if (zData != IntPtr.Zero)
         {
             Marshal.FreeHGlobal(zData);
         }
     }
 }

 public static extern int sqlite3_bind_blob(Sqlite3StmtHandle pStmt, int i, byte[] zData, int nData, IntPtr xDel);

 private static extern int sqlite3_bind_text(Sqlite3StmtHandle pStmt, int i, IntPtr zData, int n, IntPtr xDel);

 public static extern int sqlite3_stmt_readonly(Sqlite3StmtHandle pStmt);

 public static string sqlite3_bind_parameter_name(Sqlite3StmtHandle stmt, int i)
     => MarshalEx.PtrToStringUTF8(sqlite3_bind_parameter_name_raw(stmt, i));

 private static extern int sqlite3_column_bytes(Sqlite3StmtHandle pStmt, int iCol);

 public static extern int sqlite3_bind_null(Sqlite3StmtHandle pStmt, int i);

 public static string sqlite3_column_text(Sqlite3StmtHandle stmt, int iCol) => MarshalEx.PtrToStringUTF8(sqlite3_column_text_raw(stmt, iCol));

 public static extern int sqlite3_column_type(Sqlite3StmtHandle stmt, int iCol);

 public static extern long sqlite3_column_int64(Sqlite3StmtHandle stmt, int iCol);

 private static extern IntPtr sqlite3_column_text_raw(Sqlite3StmtHandle stmt, int iCol);

 public static extern double sqlite3_column_double(Sqlite3StmtHandle stmt, int iCol);

 public static extern IntPtr sqlite3_column_decltype_raw(Sqlite3StmtHandle stmt, int iCol);

 public static extern int sqlite3_column_count(Sqlite3StmtHandle stmt);

 public static extern int sqlite3_bind_double(Sqlite3StmtHandle pStmt, int i, double rValue);

 private static extern int sqlite3_prepare_v2(Sqlite3Handle db, IntPtr zSql, int nByte, out Sqlite3StmtHandle ppStmt, out IntPtr pzTail);

 public static extern int sqlite3_bind_int64(Sqlite3StmtHandle pStmt, int i, long iValue);

 public static extern int sqlite3_bind_parameter_count(Sqlite3StmtHandle stmt);

 internal int Bind(Sqlite3StmtHandle stmt)
 {
     var bound = 0;
     foreach (var parameter in _parameters)
     {
         if (parameter.Bind(stmt))
         {
             bound++;
         }
     }
     return bound;
 }