Syntax Rules for Describing the Data Stream
<code_page_spec> ::= CODEPAGE [<valCODEPAGE_NAME>]
valCODEPAGE_NAME |
Name
of code pages If you specify an empty value, the code page is reset to the default value. |
You define which code page is used when CHAR data is converted from ASCII to UCS2 (see also: standard_code_spec).
To make user-defined code pages accessible to the SAP DB Loader for conversions, you first have to load these code pages into the system table CODEPAGE. To do this, proceed as follows:
1. In the directory <dependent_path>/env, create a file with the name <valCODEPAGE_NAME>.txt. This file has to be formatted like the files that are provided by the Unicode consortium at ftp://ftp.unicode.org/Public/MAPPINGS/.
File ISO-8859-8.txt
# Name:
ISO/IEC 8859-8:1999 to Unicode
# Unicode version: 3.0
# Table version: 1.1
# Table format: Format A
# Date:
2000-Jan-03
# Authors:
Ken Whistler kenw@sybase.com
#
# Copyright (c) 1991-1999 Unicode,
Inc. All Rights reserved.
#
# This file is provided as-is by Unicode,
Inc. (The Unicode Consortium).
# No claims are made as to fitness for
any particular purpose. No
# warranties of any kind are expressed or
implied. The recipient
# agrees to determine applicability of
information provided. If this
# file has been provided on optical media
by Unicode, Inc., the sole
# remedy for any claim will be exchange
of defective media within 90
# days of receipt.
#
# Unicode, Inc. hereby grants the right
to freely use the information
# supplied in this file in the creation
of products supporting the
# Unicode Standard, and to make copies of
this file in any form for
# internal or external distribution as
long as this notice remains
# attached.
…
# Format: Three tab-separated columns
# Column #1 is the
ISO/IEC 8859-8 code (in hex as 0xXX)
# Column #2 is the
Unicode (in hex as 0xXXXX)
# Column #3 the
Unicode name (follows a comment sign, '#')
…
0x00 0x0000 #
NULL
0x01 0x0001 #
START OF HEADING
0x02 0x0002 #
START OF TEXT
0x03 0x0003 #
END OF TEXT
0x04 0x0004 #
END OF TRANSMISSION
0x05 0x0005 #
ENQUIRY
0x06 0x0006 #
ACKNOWLEDGE
0x07 0x0007 #
BELL
0x08 0x0008 #
BACKSPACE
0x09 0x0009 #
HORIZONTAL TABULATION
0x0A 0x000A #
LINE FEED
2.
Load the code
page into the system table CODEPAGE.
Use the SET command to do
so. When processing the SET command SET
CODEPAGE <valCODEPAGE_NAME>, the SAP DB Loader first tries to find the
specified code page in the system table CODEPAGE.
If the table does
not contain the code page, the SAP DB Loader tries to find the corresponding
file <valCODEPAGE_NAME>.txt.
If this file exists,
it is read, and the conversion table is entered in the system table
CODEPAGE.
If the file is not
found, and if the code page is not contained in the system table, the SAP DB
Loader stops processing the SET command and displays an error
message.
If the SET command is processed successfully, the user-defined code page is available in the system table CODEPAGE.
The SAP DB Loader reads the converstion table from the system table CODEPAGE. All subsequent conversions of the CHAR data from ASCII to UCS2 are performed by using this conversion table.
See also: