You would have **one single `engine` object** for all your code to connect to the same database.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

Using `check_same_thread=False` allows FastAPI to use the same SQLite database in different threads. This is necessary as **one single request** could use **more than one thread** (for example in dependencies).

#### Tips and guidelines

Calling this program outputs:

```
John Doe
```

The function does the following:

* Takes a `first_name` and `last_name`.
* Converts the first letter of each one to upper case with `title()`.
* <abbr title="Puts them together, as one. With the contents of one after the other.">Concatenates</abbr> them with a space in the middle.

{* ../../docs_src/python_types/tutorial001_py39.py hl[2] *}

### Edit it { #edit-it }

Conversations in the chat systems are also not as easily searchable as in GitHub, so questions and answers might get lost in the conversation. And only the ones in GitHub count to become a [FastAPI Expert](fastapi-people.md#fastapi-experts){.internal-link target=_blank}, so you will most probably receive more attention in GitHub.

            for (Iterator<ResolutionNode> i = node.getChildrenIterator(); i.hasNext(); ) {
                ResolutionNode child = i.next();

                try {

                    // We leave in optional ones, but don't pick up its dependencies
                    if (!child.isResolved() && (!child.getArtifact().isOptional() || child.isChildOfRootNode())) {
                        Artifact artifact = child.getArtifact();

     */
    boolean isAllowNTLMFallback();

    /**
     * Property {@code jcifs.smb.useRawNTLM} (boolean, default false)
     *
     * @return whether to use raw NTLMSSP tokens instead of SPNEGO wrapped ones
     * @since 2.1
     */
    boolean isUseRawNTLM();

    /**
     *
     * Property {@code jcifs.smb.client.disablePlainTextPasswords} (boolean, default true)
     *

            final SmbTransportInternal trans = dc.unwrap(SmbTransportInternal.class);
            // the tconHostName is from the DC referral, that referral must be resolved
            // before following deeper ones. Otherwise e.g. samba will return a broken
            // referral.
            synchronized (trans) {
                try {
                    // ensure connected
                    trans.ensureConnected();

  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
  private static void closeAll(BaseStream<?, ?>[] toClose) {
    // If one of the streams throws an exception, continue closing the others, then throw the
    // exception later. If more than one stream throws an exception, the later ones are added to the
    // first as suppressed exceptions. We don't catch Error on the grounds that it should be allowed
    // to propagate immediately.

     */
    public void removeTestCompileSourceRoot(String path) {
        removeSourceRoot(ProjectScope.TEST, Language.JAVA_FAMILY, path);
    }
    /**
     * {@return all source root directories, including the disabled ones, for all languages and scopes}.
     * The iteration order is the order in which the sources are declared in the POM file.
     * The returned collection is unmodifiable.
     *
     * @see #addSourceRoot(SourceRoot)

        // Analyze plugins from effective model
        return analyzePluginsFromEffectiveModel(context, effectiveModel, pluginUpgrades);
    }

    /**
     * Analyzes plugins from the effective model and determines which ones need upgrades.
     */
    private Set<String> analyzePluginsFromEffectiveModel(
            UpgradeContext context, Model effectiveModel, Map<String, PluginUpgrade> pluginUpgrades) {