When you want to determine whether a given row includes a comment, you no longer need to check for a null value in the COMMENT column. 确定某一个行是否包含注释时,不再需要检查COMMENT列的null值。
Alternatively, you could redefine ASSIGN_OP to recognize other types of "alignables," such as comment introducers or column markers, and align them instead. 另一种选择是,可以重新定义ASSIGNOP来识别其他“可对齐的”类型,比如注释导入器或列表及,并对齐它们。
Next comes the interesting part: the COMMENT database column, which represents the optional XML element. 接下来的部分比较有趣:COMMENT数据库列,它代表可选的XML元素。
The column O_COMMENT has been cut to a length of 20 characters ( instead of 79). 列OCOMMENT被裁剪为长度为20个字符(而不是79个字符)。
In our sample table, values in the COMMENT column ( a relational column) can be used to isolate the type of trade recorded in the DOCUMENT column ( an XML column). 在我们的样例表中,COMMENT列(一个关系列)中的值可以用于分隔记录在DOCUMENT列(一个XML列)中的交易类型。
If no comment is associated with a given purchase order object, you might expect this column to be null after persisting the entity. 如果没有任何注释与给定订单对象相关,那么您可能希望在持久化实体后将该列设为null。
The comment IDs, customer IDs, and messages are stored in XML documents in the "comments" column. 评论ID、客户ID和评语存储在“comments”列中的XML文档中。
In the long line in the middle beneath the comment,// Set the elementName variable equal to the column name, elementName is set equal to something. 在代码清单中间位置,注释行//SettheelementNamevariableequaltothecolumnname下面的一长行代码中,elementName被设置为等于某某东西。
Suppose that you want to add some text to comment the subtotal and, at the same time, have the subtotal appear in the same column as the single orders amount. 假设您需要添加一些文本以对小计进行注释,而且与此同时,让小计与单个定单量出现在同一列中。
The fifth section, gives some advice about how to develop the comment column and some deficiencies and existing problem of it. 第五部分指出了当前评论专栏所存在的一些问题和误区,并对如何策划评论专栏以及评论专栏的发展提了一些自己的建议。
Study on the Characteristic and Location of Newspaper Comment Column 报纸评论专栏的特点与定位研究
Comment on "National Culture Research" Column of Journal of Huaihua University 地方性大学的学术理念与学术导向&评《怀化学院学报》的民族文化研究专栏
As an important factor of media, the comment column has a vital position. 评论专栏作为媒体的一个重要组成部分,具有举足轻重的地位。
In the nine years after founded, with its comment on hot news, accurate interpretation of the central spirit and the courage to advocating for the interests of the common people, it has become the most popular and authority column among the media and the audience. 专栏创办9年多来,以其评说热点新闻、准确阐释中央精神、敢为民众利益鼓与呼的特色,成为受媒体和受众欢迎的新华社权威言论栏目。