Class ExecuteBatchDmlRequest (3.3.0)

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`	`Sequence[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 will succeed. 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 may be aborted. Replays of previously handled requests will yield the same response as the first execution.

Classes

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

A single DML statement.