Method: jobs.query

HTTP request
Path parameters
Request body
Response body
- JSON representation
Authorization Scopes
QueryRequest
- JSON representation
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Runs a BigQuery SQL query synchronously and returns query results if the query completes within a specified timeout.

HTTP request

POST https://bigquery.googleapis.com/bigquery/v2/projects/{projectId}/queries

The URL uses gRPC Transcoding syntax.

Path parameters

Parameters

Parameters
`projectId`	`string` Required. Project ID of the query request.

projectId

string

Required. Project ID of the query request.

Request body

The request body contains an instance of QueryRequest.

Response body

If successful, the response body contains data with the following structure:

JSON representation

JSON representation
{ "kind": string, "schema": { object (`TableSchema`) }, "jobReference": { object (`JobReference`) }, "totalRows": string, "pageToken": string, "rows": [ { object } ], "totalBytesProcessed": string, "jobComplete": boolean, "errors": [ { object (`ErrorProto`) } ], "cacheHit": boolean, "numDmlAffectedRows": string }

{
  "kind": string,
  "schema": {
    object (TableSchema)
  },
  "jobReference": {
    object (JobReference)
  },
  "totalRows": string,
  "pageToken": string,
  "rows": [
    {
      object
    }
  ],
  "totalBytesProcessed": string,
  "jobComplete": boolean,
  "errors": [
    {
      object (ErrorProto)
    }
  ],
  "cacheHit": boolean,
  "numDmlAffectedRows": string
}

Fields
`kind`	`string` The resource type.
`schema`	`object (TableSchema)` The schema of the results. Present only when the query completes successfully.
`jobReference`	`object (JobReference)` Reference to the Job that was created to run the query. This field will be present even if the original request timed out, in which case jobs.getQueryResults can be used to read the results once the query has completed. Since this API only returns the first page of results, subsequent pages can be fetched via the same mechanism (jobs.getQueryResults).
`totalRows`	`string (UInt64Value format)` The total number of rows in the complete query result set, which can be more than the number of rows in this single page of results.
`pageToken`	`string` A token used for paging results.
`rows[]`	`object (Struct format)` An object with as many results as can be contained within the maximum permitted reply size. To get any additional rows, you can call jobs.getQueryResults and specify the jobReference returned above.
`totalBytesProcessed`	`string (Int64Value format)` The total number of bytes processed for this query. If this query was a dry run, this is the number of bytes that would be processed if the query were run.
`jobComplete`	`boolean` Whether the query has completed or not. If rows or totalRows are present, this will always be true. If this is false, totalRows will not be available.
`errors[]`	`object (ErrorProto)` Output only. The first errors or warnings encountered during the running of the job. The final message includes the number of errors that caused the process to stop. Errors here do not necessarily mean that the job has completed or was unsuccessful.
`cacheHit`	`boolean` Whether the query result was fetched from the query cache.
`numDmlAffectedRows`	`string (Int64Value format)` Output only. The number of rows affected by a DML statement. Present only for DML statements INSERT, UPDATE or DELETE.

Authorization Scopes

Requires one of the following OAuth scopes:

https://www.googleapis.com/auth/bigquery
https://www.googleapis.com/auth/cloud-platform
https://www.googleapis.com/auth/bigquery.readonly
https://www.googleapis.com/auth/cloud-platform.read-only

For more information, see the Authentication Overview.

QueryRequest

JSON representation

JSON representation
{ "kind": string, "query": string, "maxResults": integer, "defaultDataset": { object (`DatasetReference`) }, "timeoutMs": integer, "dryRun": boolean, "preserveNulls": boolean, "useQueryCache": boolean, "useLegacySql": boolean, "parameterMode": string, "queryParameters": [ { object (`QueryParameter`) } ], "location": string, "formatOptions": { object (`DataFormatOptions`) }, "connectionProperties": [ { object (`ConnectionProperty`) } ], "labels": { string: string, ... }, "maximumBytesBilled": string, "requestId": string }

{
  "kind": string,
  "query": string,
  "maxResults": integer,
  "defaultDataset": {
    object (DatasetReference)
  },
  "timeoutMs": integer,
  "dryRun": boolean,
  "preserveNulls": boolean,
  "useQueryCache": boolean,
  "useLegacySql": boolean,
  "parameterMode": string,
  "queryParameters": [
    {
      object (QueryParameter)
    }
  ],
  "location": string,
  "formatOptions": {
    object (DataFormatOptions)
  },
  "connectionProperties": [
    {
      object (ConnectionProperty)
    }
  ],
  "labels": {
    string: string,
    ...
  },
  "maximumBytesBilled": string,
  "requestId": string
}

Fields
`kind`	`string` The resource type of the request.
`query`	`string` Required. A query string, following the BigQuery query syntax, of the query to execute. Example: "SELECT count(f1) FROM [myProjectId:myDatasetId.myTableId]".
`maxResults`	`integer` Optional. The maximum number of rows of data to return per page of results. Setting this flag to a small value such as 1000 and then paging through results might improve reliability when the query result set is large. In addition to this limit, responses are also limited to 10 MB. By default, there is no maximum row count, and only the byte limit applies.
`defaultDataset`	`object (DatasetReference)` Optional. Specifies the default datasetId and projectId to assume for any unqualified table names in the query. If not set, all table names in the query string must be qualified in the format 'datasetId.tableId'.
`timeoutMs`	`integer` Optional. How long to wait for the query to complete, in milliseconds, before the request times out and returns. Note that this is only a timeout for the request, not the query. If the query takes longer to run than the timeout value, the call returns without any results and with the 'jobComplete' flag set to false. You can call jobs.getQueryResults() to wait for the query to complete and read the results. The default value is 10000 milliseconds (10 seconds).
`dryRun`	`boolean` Optional. If set to true, BigQuery doesn't run the job. Instead, if the query is valid, BigQuery returns statistics about the job such as how many bytes would be processed. If the query is invalid, an error returns. The default value is false.
`preserveNulls (deprecated)`	`boolean` This item is deprecated! This property is deprecated.
`useQueryCache`	`boolean` Optional. Whether to look for the result in the query cache. The query cache is a best-effort cache that will be flushed whenever tables in the query are modified. The default value is true.
`useLegacySql`	`boolean` Specifies whether to use BigQuery's legacy SQL dialect for this query. The default value is true. If set to false, the query will use BigQuery's standard SQL: https://cloud.google.com/bigquery/sql-reference/ When useLegacySql is set to false, the value of flattenResults is ignored; query will be run as if flattenResults is false.
`parameterMode`	`string` Standard SQL only. Set to POSITIONAL to use positional (?) query parameters or to NAMED to use named (@myparam) query parameters in this query.
`queryParameters[]`	`object (QueryParameter)` jobs.query parameters for Standard SQL queries.
`location`	`string` The geographic location where the job should run. See details at https://cloud.google.com/bigquery/docs/locations#specifying_your_location.
`formatOptions`	`object (DataFormatOptions)` Optional. Output format adjustments.
`connectionProperties[]`	`object (ConnectionProperty)` Optional. Connection properties which can modify the query behavior.
`labels`	`map (key: string, value: string)` Optional. The labels associated with this query. Labels can be used to organize and group query jobs. Label keys and values can be no longer than 63 characters, can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. Label keys must start with a letter and each label in the list must have a different key. An object containing a list of `"key": value` pairs. Example: `{ "name": "wrench", "mass": "1.3kg", "count": "3" }`.
`maximumBytesBilled`	`string (Int64Value format)` Optional. Limits the bytes billed for this query. Queries with bytes billed above this limit will fail (without incurring a charge). If unspecified, the project default is used.
`requestId`	`string` Optional. A unique user provided identifier to ensure idempotent behavior for queries. Note that this is different from the jobId. It has the following properties: 1. It is case-sensitive, limited to up to 36 ASCII characters. A UUID is recommended. 2. Read only queries can ignore this token since they are nullipotent by definition. 3. For the purposes of idempotency ensured by the requestId, a request is considered duplicate of another only if they have the same requestId and are actually duplicates. When determining whether a request is a duplicate of another request, all parameters in the request that may affect the result are considered. For example, query, connectionProperties, queryParameters, useLegacySql are parameters that affect the result and are considered when determining whether a request is a duplicate, but properties like timeoutMs don't affect the result and are thus not considered. Dry run query requests are never considered duplicate of another request. 4. When a duplicate mutating query request is detected, it returns: a. the results of the mutation if it completes successfully within the timeout. b. the running operation if it is still in progress at the end of the timeout. 5. Its lifetime is limited to 15 minutes. In other words, if two requests are sent with the same requestId, but more than 15 minutes apart, idempotency is not guaranteed.