Distinct   bool
	Columns    []Column
	Expression Expression
}

func (s Select) Name() string {
	return "SELECT"
}

func (s Select) Build(builder Builder) {
	if len(s.Columns) > 0 {
		if s.Distinct {
			builder.WriteString("DISTINCT ")
		}

		for idx, column := range s.Columns {
			if idx > 0 {
				builder.WriteByte(',')
			}
			builder.WriteQuoted(column)
		}
	} else {
		builder.WriteByte('*')

            "Indicates a Windows NT Server could not be contacted or that objects within the domain are protected such that necessary information could not be retrieved.",
            "The specified domain did not exist.", "The directory name is invalid.", "Access is denied.",

        if (origin_server != null) {
            resolveWeak();
        }
        return SID_TYPE_NAMES[type];
    }

    /**
     * Return the domain name of this SID unless it could not be
     * resolved in which case the numeric representation is returned.
     */
    /**
     * Gets the domain name for this SID.
     *
     * @return the domain name
     */

                        wagonManager.getArtifactMetadata(metadata, repository, file, policy.getChecksumPolicy());
                    } catch (ResourceDoesNotExistException e) {
                        getLogger().debug(metadata + " could not be found on repository: " + repository.getId());

                        // delete the local copy so the old details aren't used.
                        if (file.exists()) {

			}},
			"SELECT * FROM `users` WHERE `users`.`id` = ? OR `name` <> ? AND `age` > ?",
			[]interface{}{"1", "jinzhu", 18},
		},
		{
			[]clause.Interface{clause.Select{}, clause.From{}, clause.Where{

          fileToClose = file
          file = null
        }
      }

      fileToClose?.closeQuietly()
    }
  }

  companion object {
    // TODO(jwilson): what to do about timeouts? They could be different and unfortunately when any
    //     timeout is hit we like to tear down the whole stream.

    private const val SOURCE_UPSTREAM = 1
    private const val SOURCE_FILE = 2

	}

	if DB.First(&CouponProduct{}, "coupon_id = ? AND product_id = ?", coupon.ID, "full-save-association-product1").Error != nil {
		t.Errorf("Failed to query saved association")
	}

	orders := []Order{{Num: "order1", Coupon: coupon}, {Num: "order2", Coupon: coupon}}
	if err := DB.Create(&orders).Error; err != nil {
		t.Errorf("failed to create orders, got %v", err)
	}

	coupon2 := Coupon{

			builder.WriteByte('@')
			builder.WriteString(string(name))
		}
	}
}

// IN Whether a value is within a set of values
type IN struct {
	Column interface{}
	Values []interface{}
}

func (in IN) Build(builder Builder) {
	builder.WriteQuoted(in.Column)

	switch len(in.Values) {
	case 0:
		builder.WriteString(" IN (NULL)")
	case 1:
		if _, ok := in.Values[0].([]interface{}); !ok {

    expected.addAll(index, elements);
    expectContents(expected);
  }

  /*
   * TODO: if we're testing a list, we could check indexOf(). (Doing it in
   * AbstractListTester isn't enough because many tests that run on lists don't
   * extends AbstractListTester.) We could also iterate over all elements to
   * verify absence
   */
  protected void expectMissing(E... elements) {
    for (E element : elements) {

/// tip

The next sections are **not necessarily "advanced"**.

And it's possible that for your use case, the solution is in one of them.

///

## Read the Tutorial first { #read-the-tutorial-first }

You could still use most of the features in **FastAPI** with the knowledge from the main [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank}.