Want to migrate from Oracle to SQL Server ?
Try Withdata DBCopier, a Oracle to SQL Server converter for Windows, Mac, and Linux, Migrate Oracle to SQL Server, Easy and Fast.
- Step by Step, just a few mouse clicks.
- Create SQL Server tables with auto mapping data types. Create SQL Server indexes.
Migrate from Oracle to SQL Server
Login to Oracle -> Login to SQL Server -> Select tables to migrate -> Migrate from Oracle 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. Set “Import Type”.
3. Select SQL Server tables to migrate.
4. Migrate from Oracle to SQL Server.
Create SQL Server tables. Copy Oracle data to SQL Server. Create SQL Server indexes.
FAQ
More about Oracle to SQL Server converter
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See also:
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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