[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-05-15 (世界標準時間)。"],[[["Database Migration Service utilizes two migration types, continuous and one-time, with only continuous migrations available for Oracle to Cloud SQL for PostgreSQL."],["Continuous migrations are divided into two phases: the full dump phase, which transfers the initial data to the destination, and the Change Data Capture (CDC) phase, which replicates subsequent changes."],["During the full dump phase, Database Migration Service copies data directly from the source database to the destination, with the option to adjust concurrent connection numbers for optimal performance."],["Alternatively, users can manually perform the full dump and then start the migration job with the CDC phase, providing the System Change Number (SCN) as the starting point."],["The CDC phase relies on monitoring log files to replicate changes, using the Oracle LogMiner API to read and parse archived Oracle redo log files for continuous data synchronization."]]],[]]
