请问：怎么循环拆分字符串

比如有：字符串“<abc>12345678<abc>ACDEF<abc>ABD456<abc>BCDGE<abc>fg456”,想以<abc>为界,拆分成5段:<abc>12345678<abc>ACDEF<abc>ABD456<abc>BCDGE<abc>fg456

declare @str varchar(500)set @str='<abc>12345678<abc>ACDEF<abc>ABD456<abc>BCDGE<abc>fg456'set @str=replace(@str,'<abc>',''' union all select ''<abc>')+''''set @str= right(@str,len(@str)-11)exec(@str)/*-------------<abc>12345678<abc>ACDEF<abc>ABD456<abc>BCDGE<abc>fg456