使用DescribeTable介面可以查詢指定表的結構、預留讀/寫輸送量詳情等資訊。

说明 API說明請參見DescribeTable。

前提條件

  • 已初始化Client。具體操作，請參見初始化。
  • 已建立資料表。

參數

參數 說明
tableName 表名。

樣本

private static void describeTable(SyncClient client) {
    DescribeTableRequest request = new DescribeTableRequest(TABLE_NAME);
    DescribeTableResponse response = client.describeTable(request);
    TableMeta tableMeta = response.getTableMeta();
    System.out.println("表的名稱：" + tableMeta.getTableName());
    System.out.println("表的主鍵：");
    for (PrimaryKeySchema primaryKeySchema : tableMeta.getPrimaryKeyList()) {
        System.out.println(primaryKeySchema);
    }
    TableOptions tableOptions = response.getTableOptions();
    System.out.println("表的TTL:" + tableOptions.getTimeToLive());
    System.out.println("表的MaxVersions:" + tableOptions.getMaxVersions());
    ReservedThroughputDetails reservedThroughputDetails = response.getReservedThroughputDetails();
    System.out.println("表的預留讀輸送量："
            + reservedThroughputDetails.getCapacityUnit().getReadCapacityUnit());
    System.out.println("表的預留寫輸送量："
            + reservedThroughputDetails.getCapacityUnit().getWriteCapacityUnit());
}