ORMLite 为列设置别名而不是 table

Question

如何在选择列时添加别名 (AS)？我想实现类似的目标：

SELECT `foo` AS `bar` FROM `xyz` WHERE `abc` = '123' ORDER BY `bar`

我尝试在 selectColumns 之后使用 setAlias 方法，但它会将别名设置为 table，这我认为是有意的，因为它在 docs.

中被提及

Answer 1

这里是一个创建别名的例子check this

String qry = "SELECT `foo` AS `bar` FROM `xyz` WHERE `abc` = '123' ORDER BY `bar`";
GenericRawResults<Foo> rawResults =
    orderDao.queryRaw(qry, new RawRowMapper<Foo>() {
        public Foo mapRow(String[] columnNames, String[] resultColumns) {
            // assuming 0th field is the foo
            return new Foo(resultColumns[0]));
        }
     });
// page through the results
for (Foo foo : rawResults) {
   Log.e("result data ", "::" + foo.name");
}
rawResults.close();

你也可以通过this doc

ORMLite 为列设置别名而不是 table

ORMLite set an alias for column instead of table

android

orm

alias

ormlite