Want to schedule and automate from Oracle to Redshift copy data task?
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Schedule and automate Oracle to Redshift data task
1. Select and run a task from follow list:
- Merge multiple similar Oracle tables to 1 Redshift table
- Batch copy Oracle tables to Redshift
- Copy Oracle query results to Redshift table
- Copy Oracle table data to Redshift
- Migrate Oracle to Redshift
- Sync data from Oracle to Redshift
- Convert Oracle To Redshift
2. Save session and create .bat file.
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Oracle → Redshift reference
Type mapping
| Value kind | in Oracle | in Redshift |
|---|---|---|
| Int | NUMBER(10) | integer |
| Bigint | NUMBER(19) | bigint |
| Decimal | NUMBER(p,s) | numeric(p,s) |
| Float | BINARY_DOUBLE | double precision |
| Text | VARCHAR2(n) | varchar(n) |
| Long text | CLOB | varchar(max) |
| Date | DATE | date |
| Datetime | TIMESTAMP | timestamp |
| Binary | BLOB | (none) |
| Boolean | NUMBER(1) | boolean |
| JSON | CLOB | super |
Dialect differences
Both Oracle and Redshift are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in Oracle | in Redshift |
|---|---|---|
| port | 1521 | 5439 |
| row limit | FETCH FIRST n ROWS ONLY | LIMIT n |
| dates | DATE, TIMESTAMP | timestamp, date |
| long text | CLOB, NCLOB | VARCHAR(MAX) |
| binary | BLOB, BFILE | — |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| Redshift | UNLOAD to S3 |
| Redshift (load) | COPY from S3 |
| Oracle (load) | sqlldr (SQL*Loader) |
No counterpart
- Oracle values of kind Binary have nowhere to go in Redshift.
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