Hello group,
i got a strange problem while implementing a function, which reverses a
string. It is very simple, but only works for strings (VARCHAR) of a
maximum length of 38 chars. If a String is longer than that it produces
the following error:
Error: com.sap.dbtech.jdbc.exceptions.DatabaseException: [-2010] (at 8):
Assignment impossible, char value too long, SQL State: 22001, Error
Code: -2010
The function is:
CREATE FUNCTION reverse(s VARCHAR) RETURNS VARCHAR AS
VAR result VARCHAR(255); actualchar VARCHAR; indexRight INT;
IF s is NULL THEN RETURN NULL;
SET indexRight = LENGTH(s);
SET result = '';
WHILE indexRight > 0 DO BEGIN
SET actualChar = SUBSTR(s, indexRight, 1);
SET indexRight = indexRight - 1;
SET result = result & actualChar;
END;
RETURN result;
So i tested with:
SELECT inxmail_reverse('AAAAAAAAAAAAAAABBBBBBBBBBBBBBBCCCDDDDD') FROM
BWTABLES
if i add an E at the end of the string i get the error.
What am i doing wrong and where is that CHAR column the error message is
complaining about ???
Thx in advance,
Nils Drews
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