UltraLiteJ Database Unload utility (ULjUnload)

Provides the capability to unload an UltraLiteJ database—either the data, the schema, or both—to an XML file.

Syntax

ULjUnload -c filename -p password  [ options ] outputfile

Options	Description
-b max-blob-size	Maximum size (in bytes) of blob/char data output to XML.
-c filename	Required. Name of database file to unload.
-d	Unload only data; do not output schema information.
-e table, ...	Exclude data for tables named in list.
-f directory	Directory to store data for columns larger than max blob size specified with -b option.
-n	Unload schema information only; do not output data.
-p password	Password to connect to database. The default is dba.
-q	Run in quiet mode—do not display messages.
-t table, ...	Only output data for tables named in list.
-v	Display verbose messages.
-y	Overwrite output file if it already exists.
-?	Display option usage/help information.
outputfile	Output file name (this file contains xml statements that describe the database contents).

Example for unloading blobfile types

Apply the following sample SQL statement to your database to unload a blobfile type:

CREATE TABLE blobfile_example
    file_name CHAR(size) DEFAULT AUTOFILENAME( prefix, extension ),
    file_contents LONG BINARY STORE AS FILE( file_name ) [ CASCADE DELETE ]

When applying this example and using this utility, ULjUnload exports the file_name column as a regular CHAR but with an additional attribute, default_autofilename, which stores the prefix and extension strings in the form 'prefix', 'extension'. The file_contents column is exported as a LONG BINARY but with an additional attribute, filename_col, which stores the name of the referenced file_name column. In the row containing the blobfile columns, the content of the file_name column is unchanged. The file_contents column behaves like an externally-stored blob column and has the following form:

file_contents.File="tablename-columname-rownumber.bin"

The contents of the file_contents column are saved as bin files to the location specified by the -f option.

For more information about loading a blobfile type from the created XML file, see UltraLiteJ Database Load utility (ULjLoad).

Example XML file contents

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<ul:ulschema xmlns:ul="urn:ultralite">
 <collation name="1252LATIN1" case_sensitive="no"/>
 <options>
  <option name="dateformat" value="YYYY-MM-DD"/>
  <option name="dateorder" value="YMD"/>
  <option name="nearestcentury" value="50"/>
  <option name="precision" value="30"/>
  <option name="scale" value="6"/>
  <option name="timeformat" value="HH:NN:SS.SSS"/>
  <option name="timestampformat" value="YYYY-MM-DD HH:NN:SS.SSS"/>
  <option name="timestampincrement" value="1"/>
 </options>
 <tables>
  <table name="ULCustomer" sync="changes">
   <columns>
    <column name="cust_id" type="integer" null="no"/>
    <column name="cust_name" type="char(30)" null="yes"/>
   </columns>
   <primarykey>
    <primarycolumn name="cust_id" direction="asc"/>
   </primarykey>
   <indexes/>
  </table>
 </tables>
 <uldata>
  <table name="ULCustomer">
   <row cust_id="2000" cust_name="Apple St. Builders"/>
   <row cust_id="2001" cust_name="Art's Renovations"/>
   <row cust_id="2002" cust_name="Awnings R Us"/>
   <row cust_id="2003" cust_name="Al's Interior Design"/>
   <row cust_id="2004" cust_name="Alpha Hardware"/>
   <row cust_id="2005" cust_name="Ace Properties"/>
   <row cust_id="2006" cust_name="A1 Contracting"/>
   <row cust_id="2007" cust_name="Archibald Inc."/>
   <row cust_id="2008" cust_name="Acme Construction"/>
   <row cust_id="2009" cust_name="ABCXYZ Inc."/>
   <row cust_id="2010" cust_name="Buy It Co."/>
   <row cust_id="2011" cust_name="Bill's Cages"/>
   <row cust_id="2012" cust_name="Build-It Co."/>
   <row cust_id="2013" cust_name="Bass Interiors"/>
   <row cust_id="2014" cust_name="Burger Franchise"/>
   <row cust_id="2015" cust_name="Big City Builders"/>
   <row cust_id="2016" cust_name="Bob's Renovations"/>
   <row cust_id="2017" cust_name="Basements R Us"/>
   <row cust_id="2018" cust_name="BB Interior Design"/>
   <row cust_id="2019" cust_name="Bond Hardware"/>
   <row cust_id="2020" cust_name="Cat Properties"/>
   <row cust_id="2021" cust_name="C &amp; C Contracting"/>
   <row cust_id="2022" cust_name="Classy Inc."/>
   <row cust_id="2023" cust_name="Cooper Construction"/>
   <row cust_id="2024" cust_name="City Schools"/>
   <row cust_id="2025" cust_name="Can Do It Co."/>
   <row cust_id="2026" cust_name="City Corrections"/>
   <row cust_id="2027" cust_name="City Sports Arenas"/>
   <row cust_id="2028" cust_name="Cantaloupe Interiors"/>
   <row cust_id="2029" cust_name="Chicken Franchise"/>
  </table>
 </uldata>
</ul:ulschema>

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