Example #1
0
// Bind replaces the literals placed in the SQL statement with the actual
// values supplied to the function.
//
// The following templates may be replaced by the values:
//   - ?
//   - ?NNN
//   - :VVV
//   - @VVV
//   - $VVV
// In the templates above, NNN represents an integer literal, VVV represents
// an alphanumeric identifier.
func (p QueryParameter) Bind(s *Statement, value interface{}) (e error) {
	switch v := value.(type) {
	case nil:
		e = SQLiteError(C.sqlite3_bind_null(s.cptr, C.int(p)))
	case int:
		e = SQLiteError(C.sqlite3_bind_int(s.cptr, C.int(p), C.int(v)))
	case string:
		e = SQLiteError(C.gosqlite3_bind_text(s.cptr, C.int(p), C.CString(v), C.int(len(v))))
	case int64:
		e = SQLiteError(C.sqlite3_bind_int64(s.cptr, C.int(p), C.sqlite3_int64(v)))
	case float32:
		e = SQLiteError(C.sqlite3_bind_double(s.cptr, C.int(p), C.double(v)))
	case float64:
		e = SQLiteError(C.sqlite3_bind_double(s.cptr, C.int(p), C.double(v)))
	default:
		buffer := new(bytes.Buffer)
		encoder := gob.NewEncoder(buffer)
		if encoder.Encode(value) != nil {
			e = ENCODER
		} else {
			rawbuffer := string(buffer.Bytes())
			cs := C.CString(rawbuffer)
			defer C.free(unsafe.Pointer(cs))
			e = SQLiteError(C.gosqlite3_bind_blob(s.cptr, C.int(p), unsafe.Pointer(cs), C.int(len(rawbuffer))))
		}
	}
	return
}
Example #2
0
func (p QueryParameter) Bind(s *Statement, value interface{}) (e os.Error) {
	var rv Errno
	switch v := value.(type) {
	case nil:
		rv = Errno(C.sqlite3_bind_null(s.cptr, C.int(p)))
	case int:
		rv = Errno(C.sqlite3_bind_int(s.cptr, C.int(p), C.int(v)))
	case string:
		rv = Errno(C.gosqlite3_bind_text(s.cptr, C.int(p), C.CString(v), C.int(len(v))))
	case int64:
		rv = Errno(C.sqlite3_bind_int64(s.cptr, C.int(p), C.sqlite3_int64(v)))
	case float32:
		rv = Errno(C.sqlite3_bind_double(s.cptr, C.int(p), C.double(v)))
	case float64:
		rv = Errno(C.sqlite3_bind_double(s.cptr, C.int(p), C.double(v)))
	default:
		buffer := new(bytes.Buffer)
		encoder := gob.NewEncoder(buffer)
		if encoder.Encode(value) != nil {
			rv = ENCODER
		} else {
			rawbuffer := string(buffer.Bytes())
			rv = Errno(C.gosqlite3_bind_blob(s.cptr, C.int(p), unsafe.Pointer(C.CString(rawbuffer)), C.int(len(rawbuffer))))
		}
	}
	if rv != OK {
		e = rv
	}
	return
}
Example #3
0
func (s *SQLiteStmt) bind(args []driver.Value) error {
	rv := C.sqlite3_reset(s.s)
	if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
		return s.c.lastError()
	}

	for i, v := range args {
		n := C.int(i + 1)
		switch v := v.(type) {
		case nil:
			rv = C.sqlite3_bind_null(s.s, n)
		case string:
			if len(v) == 0 {
				b := []byte{0}
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
			} else {
				b := []byte(v)
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
			}
		case int:
			rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
		case int32:
			rv = C.sqlite3_bind_int(s.s, n, C.int(v))
		case int64:
			rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
		case byte:
			rv = C.sqlite3_bind_int(s.s, n, C.int(v))
		case bool:
			if bool(v) {
				rv = C.sqlite3_bind_int(s.s, n, 1)
			} else {
				rv = C.sqlite3_bind_int(s.s, n, 0)
			}
		case float32:
			rv = C.sqlite3_bind_double(s.s, n, C.double(v))
		case float64:
			rv = C.sqlite3_bind_double(s.s, n, C.double(v))
		case []byte:
			var p *byte
			if len(v) > 0 {
				p = &v[0]
			}
			rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
		case time.Time:
			b := []byte(v.UTC().Format(SQLiteTimestampFormats[0]))
			rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
		}
		if rv != C.SQLITE_OK {
			return s.c.lastError()
		}
	}
	return nil
}
Example #4
0
// BindByIndex binds value to the specified host parameter of the prepared statement.
// Value's type/kind is used to find the storage class.
// The leftmost SQL parameter has an index of 1.
func (s *Stmt) BindByIndex(index int, value interface{}) error {
	i := C.int(index)
	var rv C.int
	switch value := value.(type) {
	case nil:
		rv = C.sqlite3_bind_null(s.stmt, i)
	case string:
		if NullIfEmptyString && len(value) == 0 {
			rv = C.sqlite3_bind_null(s.stmt, i)
		} else {
			cs, l := cstring(value)
			rv = C.my_bind_text(s.stmt, i, cs, l)
		}
	case int:
		rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
	case int64:
		rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value))
	case byte:
		rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
	case bool:
		rv = C.sqlite3_bind_int(s.stmt, i, btocint(value))
	case float32:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(value))
	case float64:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(value))
	case []byte:
		var p *byte
		if len(value) > 0 {
			p = &value[0]
		}
		rv = C.my_bind_blob(s.stmt, i, unsafe.Pointer(p), C.int(len(value)))
	case time.Time:
		if NullIfZeroTime && value.IsZero() {
			rv = C.sqlite3_bind_null(s.stmt, i)
		} else {
			rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value.Unix()))
		}
	case ZeroBlobLength:
		rv = C.sqlite3_bind_zeroblob(s.stmt, i, C.int(value))
	case driver.Valuer:
		v, err := value.Value()
		if err != nil {
			return err
		}
		return s.BindByIndex(index, v)
	default:
		return s.BindReflect(index, value)
	}
	return s.error(rv, "Stmt.Bind")
}
Example #5
0
func (s *SQLiteStmt) bind(args []interface{}) error {
	rv := C.sqlite3_reset(s.s)
	if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
		return errors.New(C.GoString(C.sqlite3_errmsg(s.c.db)))
	}

	for i, v := range args {
		n := C.int(i + 1)
		switch v := v.(type) {
		case nil:
			rv = C.sqlite3_bind_null(s.s, n)
		case string:
			if len(v) == 0 {
				b := []byte{0}
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
			} else {
				b := []byte(v)
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
			}
		case int:
			rv = C.sqlite3_bind_int(s.s, n, C.int(v))
		case int64:
			rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
		case byte:
			rv = C.sqlite3_bind_int(s.s, n, C.int(v))
		case bool:
			if bool(v) {
				rv = C.sqlite3_bind_int(s.s, n, -1)
			} else {
				rv = C.sqlite3_bind_int(s.s, n, 0)
			}
		case float32:
			rv = C.sqlite3_bind_double(s.s, n, C.double(v))
		case float64:
			rv = C.sqlite3_bind_double(s.s, n, C.double(v))
		case []byte:
			var p *byte
			if len(v) > 0 {
				p = &v[0]
			}
			rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
		}
		if rv != C.SQLITE_OK {
			return errors.New(C.GoString(C.sqlite3_errmsg(s.c.db)))
		}
	}
	return nil
}
Example #6
0
// BindReflect binds value to the specified host parameter of the prepared statement.
// Value's (reflect) Kind is used to find the storage class.
// The leftmost SQL parameter has an index of 1.
func (s *Stmt) BindReflect(index int, value interface{}) error {
	i := C.int(index)
	var rv C.int
	v := reflect.ValueOf(value)
	switch v.Kind() {
	case reflect.String:
		vs := v.String() // TODO NullIfEmptyString
		rv = C.my_bind_text(s.stmt, i, C.CString(vs), C.int(len(vs)))
	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
		rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(v.Int()))
	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
		ui := v.Uint()
		if ui > math.MaxInt64 {
			return s.specificError("int overflow")
		}
		rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(ui))
	case reflect.Bool:
		rv = C.sqlite3_bind_int(s.stmt, i, btocint(v.Bool()))
	case reflect.Float32, reflect.Float64:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(v.Float()))
	default:
		name, _ := s.BindParameterName(index)
		return s.specificError("unsupported type in Bind: %T (index: %d, name: %q)", value, index, name)
	}
	return s.error(rv, "Stmt.Bind")
}
Example #7
0
func (stmt Stmt) bind(args []driver.Value) error {
	if C.sqlite3_clear_bindings(stmt.stmt) != C.SQLITE_OK {
		return stmtError(stmt.stmt)
	}
	for i, arg := range args {
		r := C.int(-1)
		switch val := arg.(type) {
		case int64:
			r = C.sqlite3_bind_int64(stmt.stmt, C.int(i+1), C.sqlite3_int64(val))
		case float64:
			r = C.sqlite3_bind_double(stmt.stmt, C.int(i+1), C.double(val))
		case bool:
			if val {
				r = C.sqlite3_bind_int64(stmt.stmt, C.int(i+1), C.sqlite3_int64(1))
			} else {
				r = C.sqlite3_bind_int64(stmt.stmt, C.int(i+1), C.sqlite3_int64(0))
			}
		case nil:
			r = C.sqlite3_bind_null(stmt.stmt, C.int(i+1))
		case string:
			str := C.CString(val)
			defer C.free(unsafe.Pointer(str))
			l := C.int(C.strlen(str))
			r = C.bind_text(stmt.stmt, C.int(i+1), str, l)
		default:
			panic("unsupported type")
		}

		if r != C.SQLITE_OK {
			return stmtError(stmt.stmt)
		}
	}
	return nil
}
Example #8
0
func (s *SQLiteStmt) bind(args []namedValue) error {
	rv := C.sqlite3_reset(s.s)
	if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
		return s.c.lastError()
	}

	for i, v := range args {
		if v.Name != "" {
			cname := C.CString(":" + v.Name)
			args[i].Ordinal = int(C.sqlite3_bind_parameter_index(s.s, cname))
			C.free(unsafe.Pointer(cname))
		}
	}

	for _, arg := range args {
		n := C.int(arg.Ordinal)
		switch v := arg.Value.(type) {
		case nil:
			rv = C.sqlite3_bind_null(s.s, n)
		case string:
			if len(v) == 0 {
				b := []byte{0}
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
			} else {
				b := []byte(v)
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
			}
		case int64:
			rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
		case bool:
			if bool(v) {
				rv = C.sqlite3_bind_int(s.s, n, 1)
			} else {
				rv = C.sqlite3_bind_int(s.s, n, 0)
			}
		case float64:
			rv = C.sqlite3_bind_double(s.s, n, C.double(v))
		case []byte:
			if len(v) == 0 {
				rv = C._sqlite3_bind_blob(s.s, n, nil, 0)
			} else {
				rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(&v[0]), C.int(len(v)))
			}
		case time.Time:
			b := []byte(v.Format(SQLiteTimestampFormats[0]))
			rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
		}
		if rv != C.SQLITE_OK {
			return s.c.lastError()
		}
	}
	return nil
}
Example #9
0
File: stmt.go Project: pkf/gosqlite
// BindByIndex binds value to the specified host parameter of the prepared statement.
// The leftmost SQL parameter has an index of 1.
func (s *Stmt) BindByIndex(index int, value interface{}) error {
	i := C.int(index)
	var rv C.int
	switch value := value.(type) {
	case nil:
		rv = C.sqlite3_bind_null(s.stmt, i)
	case string:
		cs, l := cstring(value)
		rv = C.my_bind_text(s.stmt, i, cs, l)
	case int:
		rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
	case int64:
		rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value))
	case byte:
		rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
	case bool:
		rv = C.sqlite3_bind_int(s.stmt, i, btocint(value))
	case float32:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(value))
	case float64:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(value))
	case []byte:
		var p *byte
		if len(value) > 0 {
			p = &value[0]
		}
		rv = C.my_bind_blob(s.stmt, i, unsafe.Pointer(p), C.int(len(value)))
	case time.Time: // At least three representations are possible: string (YYYY-MM-DD HH:MM:SS.SSS), int64 (unix time), float64 (julian day)
		// rv = C.my_bind_text(s.stmt, i, value.format("2006-01-02 15:04:05.000"))
		rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value.Unix()))
		// rv = C.sqlite3_bind_double(s.stmt, i, JulianDay(value))
	case ZeroBlobLength:
		rv = C.sqlite3_bind_zeroblob(s.stmt, i, C.int(value))
	default:
		return s.specificError("unsupported type in Bind: %T", value)
	}
	return s.error(rv, "Stmt.Bind")
}
Example #10
0
// bind binds statement parameter i (starting at 1) to the value v. The
// parameter name is only used for error reporting.
func (s *Stmt) bind(i C.int, v interface{}, name string) error {
	if v == nil {
		return nil // Unbound parameters are NULL by default
	}
	var rc C.int
	switch v := v.(type) {
	case int:
		rc = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(v))
	case int64:
		rc = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(v))
	case float64:
		rc = C.sqlite3_bind_double(s.stmt, i, C.double(v))
	case bool:
		rc = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(cBool(v)))
	case string:
		rc = C.bind_text(s.stmt, i, cStr(v), C.int(len(v)), 1)
	case []byte:
		rc = C.bind_blob(s.stmt, i, cBytes(v), C.int(len(v)), 1)
	case time.Time:
		rc = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(v.Unix()))
	case RawString:
		rc = C.bind_text(s.stmt, i, cStr(string(v)), C.int(len(v)), 0)
	case RawBytes:
		rc = C.bind_blob(s.stmt, i, cBytes(v), C.int(len(v)), 0)
	case ZeroBlob:
		rc = C.sqlite3_bind_zeroblob(s.stmt, i, C.int(v))
	default:
		if name != "" {
			return pkgErr(MISUSE, "unsupported type for %s (%T)", name, v)
		}
		return pkgErr(MISUSE, "unsupported type at index %d (%T)", int(i-1), v)
	}
	if rc != OK {
		return libErr(rc, s.conn.db)
	}
	return nil
}
Example #11
0
func (s *SQLiteStmt) bind(args []driver.Value) error {
	rv := C.sqlite3_reset(s.s)
	if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
		return s.c.lastError()
	}

	var vargs []bindArg
	narg := len(args)
	vargs = make([]bindArg, narg)
	if len(s.nn) > 0 {
		for i, v := range s.nn {
			if pi, err := strconv.Atoi(v[1:]); err == nil {
				vargs[i] = bindArg{pi, args[i]}
			}
		}
	} else {
		for i, v := range args {
			vargs[i] = bindArg{i + 1, v}
		}
	}

	for _, varg := range vargs {
		n := C.int(varg.n)
		v := varg.v
		switch v := v.(type) {
		case nil:
			rv = C.sqlite3_bind_null(s.s, n)
		case string:
			if len(v) == 0 {
				b := []byte{0}
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
			} else {
				b := []byte(v)
				rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
			}
		case int64:
			rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
		case bool:
			if bool(v) {
				rv = C.sqlite3_bind_int(s.s, n, 1)
			} else {
				rv = C.sqlite3_bind_int(s.s, n, 0)
			}
		case float64:
			rv = C.sqlite3_bind_double(s.s, n, C.double(v))
		case []byte:
			var p *byte
			if len(v) > 0 {
				p = &v[0]
			}
			rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
		case time.Time:
			b := []byte(v.UTC().Format(SQLiteTimestampFormats[0]))
			rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
		}
		if rv != C.SQLITE_OK {
			return s.c.lastError()
		}
	}
	return nil
}
Example #12
0
func (self *sqlStatement) sqlBindDouble(slot int, value float64) int {
	return int(C.sqlite3_bind_double(self.handle, C.int(slot+1), C.double(value)))
}
Example #13
0
// BindByIndex binds value to the specified host parameter of the prepared statement.
// Value's type/kind is used to find the storage class.
// The leftmost SQL parameter has an index of 1.
func (s *Stmt) BindByIndex(index int, value interface{}) error {
	i := C.int(index)
	var rv C.int
	switch value := value.(type) {
	case nil:
		rv = C.sqlite3_bind_null(s.stmt, i)
	case string:
		if len(value) == 0 {
			if NullIfEmptyString {
				rv = C.sqlite3_bind_null(s.stmt, i)
			} else {
				rv = C.my_bind_empty_text(s.stmt, i)
			}
		} else {
			if i64 && len(value) > math.MaxInt32 {
				return s.specificError("string too big: %d at index %d", len(value), index)
			}
			rv = C.my_bind_text(s.stmt, i, C.CString(value), C.int(len(value)))
		}
	case int:
		if i64 {
			rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value))
		} else {
			rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
		}
	case int32:
		rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
	case int64:
		rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value))
	case byte:
		rv = C.sqlite3_bind_int(s.stmt, i, C.int(value))
	case bool:
		rv = C.sqlite3_bind_int(s.stmt, i, btocint(value))
	case float32:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(value))
	case float64:
		rv = C.sqlite3_bind_double(s.stmt, i, C.double(value))
	case []byte:
		if i64 && len(value) > math.MaxInt32 {
			return s.specificError("blob too big: %d at index %d", len(value), index)
		}
		var p *byte
		if len(value) > 0 {
			p = &value[0]
		}
		rv = C.my_bind_blob(s.stmt, i, unsafe.Pointer(p), C.int(len(value)))
	case time.Time:
		if NullIfZeroTime && value.IsZero() {
			rv = C.sqlite3_bind_null(s.stmt, i)
		} else if s.c.DefaultTimeLayout == "" {
			rv = C.sqlite3_bind_int64(s.stmt, i, C.sqlite3_int64(value.Unix()))
		} else {
			v := value.Format(s.c.DefaultTimeLayout)
			rv = C.my_bind_text(s.stmt, i, C.CString(v), C.int(len(v)))
		}
	case ZeroBlobLength:
		rv = C.sqlite3_bind_zeroblob(s.stmt, i, C.int(value))
	case driver.Valuer:
		v, err := value.Value()
		if err != nil {
			return err
		}
		return s.BindByIndex(index, v)
	default:
		return s.BindReflect(index, value)
	}
	return s.error(rv, "Stmt.Bind")
}
Example #14
0
File: driver.go Project: rsc/sqlite
func (s *stmt) start(args []driver.Value) error {
	if err := s.reset(); err != nil {
		return err
	}

	n := int(C.sqlite3_bind_parameter_count(s.stmt))
	if n != len(args) {
		return fmt.Errorf("incorrect argument count for command: have %d want %d", len(args), n)
	}

	for i, v := range args {
		var str string
		switch v := v.(type) {
		case nil:
			if rv := C.sqlite3_bind_null(s.stmt, C.int(i+1)); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case float64:
			if rv := C.sqlite3_bind_double(s.stmt, C.int(i+1), C.double(v)); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case int64:
			if rv := C.sqlite3_bind_int64(s.stmt, C.int(i+1), C.sqlite3_int64(v)); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case []byte:
			var p *byte
			if len(v) > 0 {
				p = &v[0]
			}
			if rv := C.my_bind_blob(s.stmt, C.int(i+1), unsafe.Pointer(p), C.int(len(v))); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case bool:
			var vi int64
			if v {
				vi = 1
			}
			if rv := C.sqlite3_bind_int64(s.stmt, C.int(i+1), C.sqlite3_int64(vi)); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case time.Time:
			str = v.UTC().Format(timefmt[0])

		case string:
			str = v

		default:
			str = fmt.Sprint(v)
		}

		cstr := C.CString(str)
		rv := C.my_bind_text(s.stmt, C.int(i+1), cstr, C.int(len(str)))
		C.free(unsafe.Pointer(cstr))
		if rv != 0 {
			return s.c.error(rv)
		}
	}

	return nil
}
Example #15
0
func (h *Statement) BindDouble(column int, val float64) int {
	rv := C.sqlite3_bind_double(h.cptr, C.int(column), C.double(val))
	return int(rv)
}
Example #16
0
func (s *Stmt) Exec2(args ...interface{}) os.Error {
	s.args = fmt.Sprintf(" %v", []interface{}(args))
	rv := C.sqlite3_reset(s.stmt)
	if rv != 0 {
		return s.c.error(rv)
	}

	n := int(C.sqlite3_bind_parameter_count(s.stmt))
	if n != len(args) {
		return os.NewError(fmt.Sprintf("incorrect argument count for Stmt.Exec: have %d want %d", len(args), n))
	}

	for i, v := range args {
		var str string
		switch v := v.(type) {
		case int:
			if rv := C.sqlite3_bind_int(s.stmt, C.int(i+1), C.int(v)); rv != 0 {
				return s.c.error(rv)
			}
			continue
		case int64:
			if rv := C.sqlite3_bind_int64(s.stmt, C.int(i+1), C.sqlite3_int64(v)); rv != 0 {
				return s.c.error(rv)
			}
			continue
		case float64:
			if rv := C.sqlite3_bind_double(s.stmt, C.int(i+1), C.double(v)); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case []byte:
			var p *byte
			if len(v) > 0 {
				p = &v[0]
			}
			if rv := C.my_bind_blob(s.stmt, C.int(i+1), unsafe.Pointer(p), C.int(len(v))); rv != 0 {
				return s.c.error(rv)
			}
			continue

		case bool:
			if v {
				str = "1"
			} else {
				str = "0"
			}

		default:
			str = fmt.Sprint(v)
		}

		cstr := C.CString(str)
		rv := C.my_bind_text(s.stmt, C.int(i+1), cstr, C.int(len(str)))
		C.free(unsafe.Pointer(cstr))
		if rv != 0 {
			return s.c.error(rv)
		}
	}
	return nil
}