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Fast Oracle text unload speed with ociuldr by Alibaba

    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...

New command line option for text export utility -- BUFFER

    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...

Choosing right separators when unload (export) rows to text file

    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....

The LONG RAW data type support of text unload (export) utility

    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...

Make some changes to the text unload utility -- ociuldr

    I made few changes to this free utility, a new option "mode=" is introduced to change the load mode, there are four different modes in sqlldr. INSERT: Load data into empty table, this is the default mode. APPEND:...

The return (exit) code of ociuldr text unload utility

    About half years ago, someone told me to add this, because he want to get more control of ociuldr utility in his shell script. I was afraid of change any code at that time, so just left him...

High performance tuning for Oracle SQL Loader

    To get the maximum performance of Oracle SQL Loader (sqlldr), take the following into account.     Use fixed width column text file such as following. 10 ACCOUNTING   NEW YORK 20 RESEARCH     DALLAS 30 SALES        CHICAGO 40 OPERATIONS   BOSTON      ...

Generate SQL Loader control file when unloading with ociuldr

    Oracle's SQL Loader (sqlldr) can be used to load rows in text file into database tables. But sqlldr need a control file to specify how to interpret the text file format, including the column (field) separator, the record...

High performance for Oracle text unload or export with ociuldr

    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...

How to unload or export rows as text file, excel CSV file, or excel xls file?

    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...