Want to batch transfer data from Oracle to SQL Server ?
Using DBCopier, a native GUI software, a Oracle to SQL Server converter, you can batch transfer data from Oracle to SQL Server easily and fast.
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- Can run in GUI mode, Step by Step, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Support Windows, Linux, macOS.
Batch transfer data from Oracle to SQL Server
Login to Oracle and target SQL Server -> Select source Oracle tables -> Set target SQL Server tables -> Transfer Oracle data to SQL Server
Choose source Oracle database and logon.

Choose target SQL Server database and logon.

Click “Wizard – Import All Tables” at task dialog.

then show the wizard.
1. Open source Oracle .

2. List target SQL Server tables.

3. Select SQL Server tables to import.

4. Batch transfer data from Oracle to SQL Server.

You can schedule and automate this “Oracle to SQL Server” conversion task by:
1) Save session and create .bat (Windows) or .sh (Linux/macOS) file.
More about DBCopier – Oracle to SQL Server sync tool
Oracle → SQL Server reference
Type mapping
| Value kind | in Oracle | in SQL Server |
|---|---|---|
| Int | NUMBER(10) | int |
| Bigint | NUMBER(19) | bigint |
| Decimal | NUMBER(p,s) | decimal(p,s) |
| Float | BINARY_DOUBLE | float |
| Text | VARCHAR2(n) | nvarchar(n) |
| Long text | CLOB | nvarchar(max) |
| Date | DATE | date |
| Datetime | TIMESTAMP | datetime2 |
| Binary | BLOB | varbinary(max) |
| Boolean | NUMBER(1) | bit |
Dialect differences
Both Oracle and SQL Server are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in Oracle | in SQL Server |
|---|---|---|
| port | 1521 | 1433 |
| identifiers | "double quotes" | [square brackets] |
| row limit | FETCH FIRST n ROWS ONLY | SELECT TOP n |
| dates | DATE, TIMESTAMP | datetime, datetime2, date, time |
| long text | CLOB, NCLOB | nvarchar(max) |
| binary | BLOB, BFILE | varbinary(max) |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| SQL Server | bcp |
| SQL Server (load) | bcp, or BULK INSERT |
| Oracle (load) | sqlldr (SQL*Loader) |
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