也许是使用 http://www创建SQL解析器的时候.antlr.org/可能更好，或者使用现有的语法^ _ ^ http://www .antlr.org/grammar/1279318813752/PLSQL.g

maybe if you create your SQL parser by using http://www.antlr.org/ can be better, or use an exists grammars ^_^ http://www.antlr.org/grammar/1279318813752/PLSQL.g