Catalog - Get Table

Service:

Data Lake Analytics

API Version:

2016-11-01

Retrieves the specified table from the Data Lake Analytics catalog.

GET https://{accountName}.{adlaCatalogDnsSuffix}/catalog/usql/databases/{databaseName}/schemas/{schemaName}/tables/{tableName}?api-version=2016-11-01

URI Parameters

Name	In	Required	Type	Description
accountName	path	True	string	The Azure Data Lake Analytics account upon which to execute catalog operations.
adlaCatalogDnsSuffix	path	True	string	Gets the DNS suffix used as the base for all Azure Data Lake Analytics Catalog service requests.
databaseName	path	True	string	The name of the database containing the table.
schemaName	path	True	string	The name of the schema containing the table.
tableName	path	True	string	The name of the table.
api-version	query	True	string	Client Api Version.

Responses

Name	Type	Description
200 OK	USqlTable	Successfully retrieved the specified table from the underlying database and schema combination

Examples

Retrieves the specified table from the Data Lake Analytics catalog

Sample request

HTTP

GET https://contosoadla.azuredatalakeanalytics.net/catalog/usql/databases/master/schemas/dbo/tables/test_table_name?api-version=2016-11-01

Sample response

Status code:

200

{
  "computeAccountName": "contosoadla",
  "version": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345",
  "databaseName": "master",
  "schemaName": "dbo",
  "tableName": "test_table_name",
  "columnList": [
    {
      "name": "test_column_name",
      "type": "test_type"
    }
  ],
  "indexList": [
    {
      "name": "test_index_name",
      "indexKeys": [
        {
          "name": "test_index_key",
          "descending": false
        }
      ],
      "columns": [
        "test_column"
      ],
      "distributionInfo": {
        "type": 1,
        "keys": [
          {
            "name": "test_key",
            "descending": false
          }
        ],
        "count": 1,
        "dynamicCount": 1
      },
      "partitionFunction": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab346",
      "partitionKeyList": [
        "test_partition_key"
      ],
      "streamNames": [
        "test_stream_name"
      ],
      "isColumnstore": false,
      "indexId": 1,
      "isUnique": false
    }
  ],
  "partitionKeyList": [
    "test_partition_key"
  ],
  "externalTable": {
    "tableName": "test_table_name",
    "dataSource": {
      "name": {
        "firstPart": "test_first_part",
        "secondPart": "test_second_part",
        "thirdPart": "test_third_part",
        "server": "test_server"
      },
      "version": "34adfa4f-cedf-4dc0-ba29-b6d1a69ab345"
    }
  },
  "distributionInfo": {
    "type": 1,
    "keys": [
      {
        "name": "test_key",
        "descending": false
      }
    ],
    "count": 1,
    "dynamicCount": 1
  }
}

Definitions

Name	Description
DdlName	A Data Lake Analytics DDL name item.
EntityId	A Data Lake Analytics catalog entity identifier object.
ExternalTable	A Data Lake Analytics catalog external table item.
USqlDirectedColumn	A Data Lake Analytics catalog U-SQL directed column item.
USqlDistributionInfo	A Data Lake Analytics catalog U-SQL distribution information object.
USqlIndex	A Data Lake Analytics catalog U-SQL table index item.
USqlTable	A Data Lake Analytics catalog U-SQL table item.
USqlTableColumn	A Data Lake Analytics catalog U-SQL table column item.

DdlName

Object

A Data Lake Analytics DDL name item.

Name	Type	Description
firstPart	string	the name of the table associated with this database and schema.
secondPart	string	the name of the table associated with this database and schema.
server	string	the name of the table associated with this database and schema.
thirdPart	string	the name of the table associated with this database and schema.

EntityId

Object

A Data Lake Analytics catalog entity identifier object.

Name	Type	Description
name	DdlName	the name of the external table associated with this database, schema and table.
version	string (uuid)	the version of the external data source.

ExternalTable

Object

A Data Lake Analytics catalog external table item.

Name	Type	Description
dataSource	EntityId	the data source associated with this external table.
tableName	string	the name of the table associated with this database and schema.

USqlDirectedColumn

Object

A Data Lake Analytics catalog U-SQL directed column item.

Name	Type	Description
descending	boolean	the switch indicating if the index is descending or not.
name	string	the name of the index in the table.

USqlDistributionInfo

Object

A Data Lake Analytics catalog U-SQL distribution information object.

Name	Type	Description
count	integer (int32)	the count of indices using this distribution.
dynamicCount	integer (int32)	the dynamic count of indices using this distribution.
keys	USqlDirectedColumn[]	the list of directed columns in the distribution
type	integer (int32)	the type of this distribution.

USqlIndex

Object

A Data Lake Analytics catalog U-SQL table index item.

Name	Type	Description
columns	string[]	the list of columns in the index
distributionInfo	USqlDistributionInfo	the distributions info of the index
indexId	integer (int32)	the ID of this index within the table.
indexKeys	USqlDirectedColumn[]	the list of directed columns in the index
isColumnstore	boolean	the switch indicating if this index is a columnstore index.
isUnique	boolean	the switch indicating if this index is a unique index.
name	string	the name of the index in the table.
partitionFunction	string (uuid)	partition function ID for the index.
partitionKeyList	string[]	the list of partition keys in the index
streamNames	string[]	the list of full paths to the streams that contain this index in the DataLake account.

USqlTable

Object

A Data Lake Analytics catalog U-SQL table item.

Name	Type	Description
columnList	USqlTableColumn[]	the list of columns in this table
computeAccountName	string	the name of the Data Lake Analytics account.
databaseName	string	the name of the database.
distributionInfo	USqlDistributionInfo	the distributions info of the table
externalTable	ExternalTable	the external table associated with the table.
indexList	USqlIndex[]	the list of indices in this table
partitionKeyList	string[]	the list of partition keys in the table
schemaName	string	the name of the schema associated with this table and database.
tableName	string	the name of the table.
version	string (uuid)	the version of the catalog item.

USqlTableColumn

Object

A Data Lake Analytics catalog U-SQL table column item.

Name	Type	Description
name	string	the name of the column in the table.
type	string	the object type of the specified column (such as System.String).