나중에 프로덕션 애플리케이션에서는 **PostgreSQL**과 같은 데이터베이스 서버를 사용하는 것이 좋습니다.

/// tip | 팁

프론트엔드와 더 많은 도구를 포함하여 **FastAPI**와 **PostgreSQL**을 포함한 공식 프로젝트 생성기가 있습니다: [https://github.com/fastapi/full-stack-fastapi-template](https://github.com/fastapi/full-stack-fastapi-template)

///

이 튜토리얼은 매우 간단하고 짧습니다. 데이터베이스 기본 개념, SQL, 또는 더 고급 기능에 대해 배우고 싶다면, [SQLModel 문서](https://sqlmodel.tiangolo.com/)를 참고하세요.

## `SQLModel` 설치하기 { #install-sqlmodel }

   * syntax</a>. One caveat to this is that the {@code TreeSet} constructor uses a null {@code
   * Comparator} to mean "natural ordering," whereas this factory rejects null. Clean your code
   * accordingly.
   *
   * @param comparator the comparator to use to sort the set
   * @return a new, empty {@code TreeSet}
   * @throws NullPointerException if {@code comparator} is null
   */

* fix issue that pull image failed from a cross-subscription Azure Container Registry ([#66429](https://github.com/kubernetes/kubernetes/pull/66429), [@andyzhangx](https://github.com/andyzhangx))
* Preserve vmUUID when renewing nodeinfo in vSphere cloud provider ([#66007](https://github.com/kubernetes/kubernetes/pull/66007), [@w-leads](https://github.com/w-leads))

* GCE provider: Log full contents of long operations ([#26962](https://github.com/kubernetes/kubernetes/pull/26962), [@zmerlynn](https://github.com/zmerlynn))
* Fix system container detection in kubelet on systemd. ([#26586](https://github.com/kubernetes/kubernetes/pull/26586), [@derekwaynecarr](https://github.com/derekwaynecarr))

    node.thread = null; // mark as 'deleted'
    restart:
    while (true) {
      Waiter pred = null;
      Waiter curr = waitersField;
      if (curr == Waiter.TOMBSTONE) {
        return; // give up if someone is calling complete
      }
      Waiter succ;
      while (curr != null) {
        succ = curr.next;
        if (curr.thread != null) { // we aren't unlinking this node, update pred.

verification is always pulled if authentication information from an image pull is not yet present, thus enforcing authentication / re-authentication. This means an image pull might be attempted even in cases where a pod requests the `IfNotPresent` image pull policy, and might lead to the pod not starting if its pull policy is `Never` and is unable to present authentication information that led to a previous successful pull of the image it is requesting. ([#128152](https://github.com/kubernetes/k...

succeeds only when both a sender and receiver are ready. Otherwise, the channel
is buffered and communication succeeds without blocking if the buffer
is not full (sends) or not empty (receives).
A <code>nil</code> channel is never ready for communication.
</p>

<p>
A channel may be closed with the built-in function
<a href="#Close"><code>close</code></a>.

* Correct env var name in configure-helper ([#33848](https://github.com/kubernetes/kubernetes/pull/33848), [@mtaufen](https://github.com/mtaufen))
* wait until the pods are deleted completely ([#34778](https://github.com/kubernetes/kubernetes/pull/34778), [@ymqytw](https://github.com/ymqytw))

        final String requestsPerSecond = getReindexRequestsPerSecound(fessConfig);
        final String scroll = StringUtil.isNotBlank(fessConfig.getIndexReindexScroll()) ? fessConfig.getIndexReindexScroll() : null;
        final String maxDocs = StringUtil.isNotBlank(fessConfig.getIndexReindexMaxDocs()) ? fessConfig.getIndexReindexMaxDocs() : null;

    val sslContext2 = get().newSSLContext()
    sslContext2.init(null, null, null)
    val sslSocketFactory2 = sslContext2.socketFactory
    val trustManagerFactory =
      TrustManagerFactory.getInstance(
        TrustManagerFactory.getDefaultAlgorithm(),
      )
    trustManagerFactory.init(null as KeyStore?)
    val trustManager = trustManagerFactory.trustManagers[0] as X509TrustManager
    client =