{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[25:30]  hl[25:27,30] *}

### Créer les tables de base au démarrage { #create-database-tables-on-startup }

Nous allons créer les tables de base de données au démarrage de l'application.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[32:37] hl[35:37] *}

  }

  /**
   * Encodes an integer as a string with given radix, then uses {@link Ints#tryParse(String, int)}
   * to parse the result. Asserts the result is the same as what we started with.
   */
  private static void radixEncodeParseAndAssertEquals(Integer value, int radix) {
    assertWithMessage("Radix: %s", radix)
        .that(Ints.tryParse(Integer.toString(value, radix), radix))

    assertTrue(executor.isTerminated());
    assertInterrupted();
  }

  /**
   * Wrapper around {@link Stopwatch} which also contains an "expected completion time." Creating a
   * {@code Completion} starts the underlying stopwatch.
   */
  private static final class Completion {
    final Stopwatch stopwatch;
    final long expectedCompletionWaitMillis;

    Completion(long expectedCompletionWaitMillis) {

        totalCount = laterCount = currentEntry.getCount();
      }
      laterCount--;
      canRemove = true;
      /*
       * requireNonNull is safe because laterCount starts at 0, forcing us to initialize
       * currentEntry above. After that, we never clear it.
       */
      return requireNonNull(currentEntry).getElement();
    }

    @Override

        totalCount = laterCount = currentEntry.getCount();
      }
      laterCount--;
      canRemove = true;
      /*
       * requireNonNull is safe because laterCount starts at 0, forcing us to initialize
       * currentEntry above. After that, we never clear it.
       */
      return requireNonNull(currentEntry).getElement();
    }

    @Override

struct_, union_, or enum_, as in C.struct_stat. The size of any C type
T is available as C.sizeof_T, as in C.sizeof_struct_stat. These
special prefixes means that there is no way to directly reference a C
identifier that starts with "struct_", "union_", "enum_", or
"sizeof_", such as a function named "struct_function".
A workaround is to use a "#define" in the preamble, as in
"#define c_struct_function struct_function" and then in the

 *
 * The circuit breaker has three states:
 * - CLOSED: Normal operation, requests pass through
 * - OPEN: Service is failing, requests are blocked
 * - HALF_OPEN: Testing if service has recovered
 */
public class SmbCircuitBreaker {

    private static final Logger log = LoggerFactory.getLogger(SmbCircuitBreaker.class);

    /**
     * Circuit breaker states
     */
    public enum State {
        /**

	ObjectInfo
	ExpireAll         bool
	DeleteMarkerCount int64
}

// Start the batch expiration job, resumes if there was a pending job via "job.ID"
func (r *BatchJobExpire) Start(ctx context.Context, api ObjectLayer, job BatchJobRequest) error {
	ri := &batchJobInfo{
		JobID:     job.ID,
		JobType:   string(job.Type()),
		StartTime: job.Started,
	}
	if err := ri.loadOrInit(ctx, api, job); err != nil {
		return err
	}

接著我們建立一個 `Annotated` 的依賴 `SessionDep`，讓後續使用這個依賴的程式碼更簡潔。

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[25:30]  hl[25:27,30] *}

### 在啟動時建立資料表 { #create-database-tables-on-startup }

我們會在應用啟動時建立資料庫的資料表。

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[32:37] hl[35:37] *}

這裡我們在應用的啟動事件中建立資料表。

在正式環境中，你大概會在啟動應用前使用遷移腳本來處理。🤓

/// tip | 提示

/// tip | Tipp

Tun Sie dies **jedes Mal**, wenn Sie eine **neue Terminalsitzung** starten, um an dem Projekt zu arbeiten.

///

//// tab | Linux, macOS

<div class="termy">

```console
$ source .venv/bin/activate
```

</div>

////