I was thinking what is a nice way to check if database has a next row? I have an android app, which is consuming PHP web service and I have MySQL database ('dummy').
public class myAwesomeClass extends Activity{
public void onButtonClicked(View view){
if (dummy has row){
//do something
//and proceed to next row
}
else {
//something else
}
}
}
Hos does it work? Is there a "special" query in MySQL, or method in PHP? Or is it possible to do it directly within the app? Examples, suggestions, links - everything is appreciated. Thanks
您无需检查数据库是否有下一行,而是从数据库中获取的结果集是否包含另一个对象。在Java中(自您提到Android以来),当您从ResultSet对象中从数据库中获取结果时,可以循环遍历结果并通过ResultSet.hasNext()检查它是否有下一行
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