Read-only transactions provide guaranteed consistency across several reads,
but do not allow writes. Read-only transactions can be configured to read at
timestamps in the past. Read-only transactions do not need to be committed and
do not take locks.
ReadWrite
Locking read-write transactions are the only transaction type that support writing
data into Cloud Spanner. These transactions rely on pessimistic locking and, if
necessary, two-phase commit. Locking read-write transactions may abort, requiring
the application to retry.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-09 UTC."],[[["This page details the `TransactionMode` enum within the `Google.Cloud.Spanner.Data` namespace, specifically for version 3.11.0 and offers links to older and newer versions."],["The latest version documented is 5.0.0-beta05, with prior versions listed down to version 3.5.0, all related to `TransactionMode`."],["The `TransactionMode` enum includes two fields: `ReadOnly`, which ensures consistency across reads but prohibits writes, and `ReadWrite`, which supports writing but may require retries due to potential aborts."],["The `TransactionMode` documentation is found within the `Google.Cloud.Spanner.Data.dll` assembly."]]],[]]
