Oracle Database to ClickHouse Integration
AI-first ETL from Oracle Database into ClickHouse. Governed entities, incremental sync, typed landing tables.
How Datrise loads Oracle Database into ClickHouse
Datrise syncs Oracle Database's tables, rows, schemas, indexes, sequences, and redo log changes into ClickHouse as a MergeTree table per source entity. Flexible or custom fields land in JSON or Map columns, and timestamps such as created, updated, and status changes are typed as DateTime64.
Sync is incremental: Datrise uses inserts into a ReplacingMergeTree keyed on stable id, so the latest version wins on merge, so re-runs update only what changed. Partition by month and order by (entity id, updated-at) for fast range scans. ClickHouse deduplicates asynchronously on merge, so Datrise uses ReplacingMergeTree and FINAL-safe queries rather than assuming immediate upserts.
Ideal for high-volume event analytics that need sub-second aggregation.
Endpoints
Oracle Database: Oracle Database for enterprise transactional workloads.
ClickHouse: Columnar OLAP engine for fast aggregations.
How Oracle Database entities map to ClickHouse
| Oracle Database entity | ClickHouse object | Notes |
|---|---|---|
| tables | oracle_db_tables | id PK · custom fields → JSON or Map columns |
| rows | oracle_db_rows | id PK · linked to oracle_db_tables |
| schemas | oracle_db_schemas | id PK · linked to oracle_db_tables |
| indexes | oracle_db_indexes | id PK · linked to oracle_db_tables |
FAQ
How does Datrise handle Oracle Database's custom fields in ClickHouse?
Flexible values are stored as JSON or Map columns, so new fields don't require a migration; strongly-typed fields — dates, numbers, and references — are promoted to native ClickHouse types.
How does the Oracle Database to ClickHouse sync stay up to date?
It runs incrementally — Datrise uses inserts into a ReplacingMergeTree keyed on stable id, so the latest version wins on merge.
Related pipelines
More destinations for Oracle Database
- Oracle Database → DuckDB
- Oracle Database → Amazon Athena
- Oracle Database → Amazon S3 Data Lake
- Oracle Database → Azure Data Lake Storage
- Oracle Database → Azure Synapse
- Oracle Database → Spreadsheets
- Oracle Database → Airtable
- Oracle Database → CSV Files
- Oracle Database → MongoDB
- Oracle Database → Supabase
- Oracle Database → Neon
- Oracle Database → PlanetScale
Early access
Connect Oracle Database to ClickHouse the easy way
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