Assuming you're using Oracle's SQL, you could query the word from dual, connect it by level and use the level to extract a character with substr:
dual
substr
SELECT SUBSTR(word, LEVEL, 1)FROM (SELECT 'oracle' AS word FROM DUAL)CONNECT BY LEVEL <= LENGTH(word)
There are various techniques for the same, but rather than processing it on server side to increase performance, ensure the same at client end using css as follows:
p{word-spacing: 1px;}
Hope this helps.