在DB2中，我可以使用类似表的功能
SELECT ELEMENTS
FROM TABLE (AB_OWN.ELEMENTS (pv_token_id)) AS T
我想知道MYSQL是否具有类似的功能？ 如何将其翻译成MYSQL语言？
答案 0 :(得分：1)
根据mysql8文档，
public class CustomAdapter extends BaseAdapter {
Context mContext;
TextView nameView;
TextView phoneNumberView;
TextView accountView;
String name;
String phoneNumber;
String accountNumber;
ArrayList<Consumer> objects;
public CustomAdapter(Context context, int resource, ArrayList<Consumer> objects){
this.objects = objects;
this.mContext = context;
}
public CustomAdapter(){
}
@Override
public int getCount() {
return objects.size();
}
@Override
public Object getItem(int position) {
return objects.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Consumer consumer = (Consumer) getItem(position);
// Values to be displayed.
name = consumer.getName();
phoneNumber = consumer.getPhoneNumber();
accountNumber = consumer.getAccountNumber();
LayoutInflater inflater = LayoutInflater.from(mContext); // generate an inflater using context.
convertView = inflater.inflate(R.layout.details_layout,null); // inflate details_layout and store it in convertView.
nameView = convertView.findViewById(R.id.nameView);
phoneNumberView = convertView.findViewById(R.id.phoneNumberView);
accountView = convertView.findViewById(R.id.accountView);
nameView.setText(name);
phoneNumberView.setText(phoneNumber);
accountView.setText(accountNumber);
return convertView;
}
}
语句当前不支持SQL标准表函数。
您将需要一种替代方法，例如使用函数或过程填充表，然后从该表中进行选择，或者采用类似的方法。