Tips: Add to Google | Oracle DUL? | AUL License | AnySQL.net | asyncdata | ociuldr
Contact: anysql©yahoo.com/anysql©126.com, MSN: loufangxin©msn.com, AIM: loufangxin
Free Oracle text unload utility (ociuldr) was used to extract Oracle data from OLTP system and then load them into their OLAP system by alibaba company (Taobao). They get a really fast unload speed these days. 0 rows...
A lot of people complain the speed of Oracle exp/imp utility, seems the only thing we can do is to specify large buffer size. Actually there are some other methods to improve the performance a little. For export...
I rewrote severl key functions in AUL to add the compress table support, but I found that the DMP format support is more robust in AUL 5. When I use the latest AUL 4 to unload table "SYS.IND$"...
When tuning the performance of Oracle SQL loader (sqlldr), the read size and bind size option are very critical. When ociuldr utility generate the SQL loader control file for you, the default read size and bind size are...
I saw somebody were asking how to change the character set id in the Oracle export file. I did once in 1998, we had a export file from a US7ASCII database, and wanted to import it into a...
When you use old version of exp to export tables with LOB column from Oracle 9.2.0.5 or higher version, you will get an error "EXP-00003 : no storage definition found for segment .....", actually this is an Oracle...
I am moving some data by ociuldr with the following field and record option. ociuldr ... field=0x07 record=0x06 ... I think it will work well, but actually not, there are rows rejected when loading with sqlldr....
Now you can use ociuldr to move data with LONG RAW type. Just the same as LONG type, the "long=" option define the maximum length ociuldr will read. You may need to set the proper value of this...
There is a "query" option in Oracle exp utility, which enables you export filtered rows of a table by providing a where clause with this option. However this option is not widely used, many people do not clearly...
SQL Server and Sybase provide a system procedure to do this job, while Oracle hasn't it. And now I receive a task to move few tables (totally 80gb) from one schema to another schema. I tested this using...
AUL (MyDUL) can recover the data to dump file by setting the output style, the character set and the national character set. As following, 871 is the UTF8 character set id. AUL> SET OUTPUT_STYLE DMP Current OUTPUT_STYLE is...
ociuldr (Source) is a free utility used to unload Oracle rows to text file, which can be used to prepare data for data warehouse, or do the data migration from Oracle to other databases, or moving data between...
When export oracle data to different database platform, text file is always a good choice and may be the only choice, if they cannot connect directly. And some time I was required to provide some rows in excel...
| Name | Fangxin Lou |
| Job | Oracle DBA |
| Loc | Shanghai China (+08:00) |
| Skype | anysql |
| MSN | anysql©live.com |
| AIM | loufangxin |
| anysql©126.com anysql©yahoo.com |