Differences

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--- 5250_and_unicode [2018/03/22 15:40]
+++ 5250_and_unicode [2021/04/05 11:23] (current)
@@ Line 1: / Line 1: @@
+====== 5250 and Unicode ======
+If you Unicode is used on the system then it must be supported, coded and configured on every level:
+  * data (database or streamfile)
+  * program (variables)
+  * output file (display file or printer file)
+  * device (5250 terminal emulator)
+===== Data =====
+==== Database ====
+Unicode is supported by DDS and SQL. In SQL it needs to be declared as ''GRAPHIC'' or ''VARGRAPHIC'' with a corresponding ''CCSID''.
+==== Program ====
+At the program level the variables need to be defined with a corresponding '''CCSID''' keyword.
+    dcl-s buffer char(1048576) ccsid(*utf8);
+<note important>If the value should be moved to a graphic field in the display file then it value assignment to the display file field may result into a conversion error. A workaround for this is using a //ucs2// field in the RPG program and move that value to the display file graphic type field.</note>
+==== Output File ====
+=== Display File ===
+The field in the display file needs to be defined as ''G'' (graphic) with ''CCSID(13488)''.
+<note important>CCSID 1200 did not work in my case!</note>
+<note important>Graphic fields take double the space of normal character fields because ideographic characters take two character spaces for one character, see https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_71/nls/rbagsucsdspandpnlgrpcon.htm</note>
+==== Device ====
+The 5250 terminal emulator must support unicode in the data stream. IBM i ACS supports it, see Main Menu → Communication → Configuration → Connection → Unicode Options
+<note>Be sure to choose a font which can display the characters. The default font IBM3270 does not seem to have all the characters included.</note>
+{{tag>ibm}}