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Schedule and automate Clipper to PostgreSQL data task
1. Select and run a task from follow list:
- Merge multiple similar Clipper tables to 1 PostgreSQL table
- Batch copy Clipper tables to PostgreSQL
- Copy Clipper query results to PostgreSQL table
- Copy Clipper table data to PostgreSQL
- Migrate Clipper to PostgreSQL
- Sync data from Clipper to PostgreSQL
- Convert Clipper To PostgreSQL
2. Save session and create .bat file.
More about Withdata DBCopier – the tool to copy Clipper data to PostgreSQL
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Clipper → PostgreSQL reference
Type mapping
| Value kind | in Clipper | in PostgreSQL |
|---|---|---|
| Int | Numeric(10,0) | integer |
| Bigint | Numeric(19,0) | bigint |
| Decimal | Numeric(p,s) | numeric(p,s) |
| Float | Float | double precision |
| Text | Character(n) | varchar(n) |
| Long text | Memo | text |
| Date | Date | date |
| Datetime | (none) | timestamp |
| Binary | (none) | bytea |
| Boolean | Logical | boolean |
| JSON | (none) | jsonb |
Dialect differences
Both Clipper and PostgreSQL are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in Clipper | in PostgreSQL |
|---|---|---|
| port | (file-based) | 5432 |
| identifiers | — | "double quotes" |
| row limit | (driver dependent) | LIMIT n |
| dates | Date (D) | timestamp, timestamptz, date, time |
| long text | Memo (M) | TEXT |
| binary | — | BYTEA |
Command line
| Side | Command |
|---|---|
| PostgreSQL | pg_dump or COPY ... TO |
| PostgreSQL (load) | COPY ... FROM |
No counterpart
- PostgreSQL has no equivalent for Date and time – it has to be flattened or dropped.
- PostgreSQL has no equivalent for Binary – it has to be flattened or dropped.
- PostgreSQL has no equivalent for JSON – it has to be flattened or dropped.
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