java getColumnLabel 与 getColumnName
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getColumnLabel vs. getColumnName
提问by sova
What is the difference between ResultSetMetaData.getColumnLabeland ResultSetMetaData.getColumnName?
ResultSetMetaData.getColumnLabel和 ResultSetMetaData.getColumnName 有什么区别？
Label: Gets the designated column's suggested title for use in printouts and displays.
标签：获取指定列的建议标题以用于打印输出和显示。
Name: Get the designated column's name.
名称：获取指定列的名称。
Does anyone know how Label is determined?
有谁知道标签是如何确定的？
回答by stacker
String getColumnLabel(int column) throws SQLException;
If a SQL ASis not specified, the value returned from
getColumnLabelwill be the same as the value returned by the
getColumnNamemethod.
如果AS未指定SQL ，则返回
getColumnLabel的值将与getColumnName方法返回的值相同
。
Example:
例子：
select id as user_no from users
- getColumnLabel would return 'user_no'
- getColumnName would return 'id'
- getColumnLabel 将返回“user_no”
- getColumnName 将返回“id”
