Android SQLite 查询字符串到达​​ A~B~C~D~E~F 中的 D，其中 A、B、C、D、E 和 F 可以有任何感兴趣的长度和数据

Question

In an Android application,
In SQLite database, there is a column with the following data:
A~B~C~D~E~F
Where each of A,B,C,D,E and F could have variable length and data

For example,
A could be every possible interested name like Mike, Andy, Tom , ...
Or B could be any interested country name and so on

Now I need a Query to reach to D part, how?
FYI, '~' character is unique in the data (there would be just 5 characters of '~')
In other word, A,B,C,D,E,F don't contain '~'

Edit: I need LIKE clause in a basic SQLite

Answer 1

I actually don't know of a way to do this using only the basic SQLite string functions. Therefore, I would suggest handling this from Java, after you have queried:

String input = "A~B~C~D~E~F";
String[] parts = input.split("~");
String target = parts.length >= 4 ? parts[3] : "";

Answer 2

Eureka! It's possible with LIKE clause (NOT LIKE) in a basic SQLite:

          SELECT_QUERY =
                        String.format("SELECT * FROM %s WHERE %s NOT LIKE %s;",
                                Constants.TABLE_M4,
                                Constants.KEY_M4_Data,
                                "%~%~%~~%'"
                        );

If D is not empty, it is identified with the above query