Endpoint

Get Table Schema

Name

get_table_schema

Description

Gets the specified table resource by table ID. This method does not return the data in the table, it only returns the table resource, which describes the structure of this table. [API reference]

Parameters

Parameter

Label

Required

Options

Description

DatasetId

YES

TableId

YES

Filter

YES

Option	Value
All Columns	$.schema.fields[*]
Timestamp Columns	$.schema.fields[?(@type=='TIMESTAMP')]

Output Columns

Label	Data Type (SSIS)	Data Type (SQL)	Length	Raw	Description
name	`DT_WSTR`	`nvarchar(255)`	255	`False`
type	`DT_WSTR`	`nvarchar(255)`	255	`False`

If the column you are looking for is missing, consider customizing Google BigQuery Connector.

Input Columns

Label	Data Type (SSIS)	Data Type (SQL)	Length	Raw	Description
There are no Static columns defined for this endpoint. This endpoint detects columns dynamically at runtime.

Examples

SSIS

Use Google BigQuery Connector in API Source component to read data or in API Destination component to read/write data:

Get Table Schema using API Source

Google BigQuery

Get Table Schema

SSIS API Source - Read from table or endpoint

Get Table Schema using API Destination

Google BigQuery

Get Table Schema

SSIS API Destination - Access table or endpoint

ODBC application

Use these SQL queries in your ODBC application data source:

Get table schema

SELECT * FROM get_table_schema
WITH
(
    "DatasetId" = 'abcd-1234-datasetid',
    "TableId" = 'abcd-1234-tableid',
    "Filter" = '$.schema.fields[*]'
)

SQL Server

Use these SQL queries in SQL Server after you create a data source in Data Gateway:

Get table schema

DECLARE @MyQuery NVARCHAR(MAX) = 'SELECT * FROM get_table_schema
WITH
(
    "DatasetId" = ''abcd-1234-datasetid'',
    "TableId" = ''abcd-1234-tableid'',
    "Filter" = ''$.schema.fields[*]''
)';

EXEC (@MyQuery) AT [LS_TO_GOOGLE_BIGQUERY_IN_GATEWAY];