Class ExecuteBatchDmlRequest (3.58.0)

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ExecuteBatchDmlRequest(mapping=None, *, ignore_unknown_fields=False, **kwargs)

The request for ExecuteBatchDml][google.spanner.v1.Spanner.ExecuteBatchDml].

Attributes
Name	Description
session	str Required. The session in which the DML statements should be performed.
transaction	google.cloud.spanner_v1.types.TransactionSelector Required. The transaction to use. Must be a read-write transaction. To protect against replays, single-use transactions are not supported. The caller must either supply an existing transaction ID or begin a new transaction.
statements	MutableSequence[google.cloud.spanner_v1.types.ExecuteBatchDmlRequest.Statement] Required. The list of statements to execute in this batch. Statements are executed serially, such that the effects of statement i are visible to statement i+1. Each statement must be a DML statement. Execution stops at the first failed statement; the remaining statements are not executed. Callers must provide at least one statement.
seqno	int Required. A per-transaction sequence number used to identify this request. This field makes each request idempotent such that if the request is received multiple times, at most one succeeds. The sequence number must be monotonically increasing within the transaction. If a request arrives for the first time with an out-of-order sequence number, the transaction might be aborted. Replays of previously handled requests yield the same response as the first execution.
request_options	google.cloud.spanner_v1.types.RequestOptions Common options for this request.
last_statements	bool Optional. If set to true, this request marks the end of the transaction. After these statements execute, you must commit or abort the transaction. Attempts to execute any other requests against this transaction (including reads and queries) are rejected. Setting this option might cause some error reporting to be deferred until commit time (for example, validation of unique constraints). Given this, successful execution of statements shouldn't be assumed until a subsequent Commit call completes successfully.

Classes

Statement

Statement(mapping=None, *, ignore_unknown_fields=False, **kwargs)

A single DML statement.