Search multiple columns in sqlite SELECT FROM

Question

I use this code to search for Column A. What modification should I make if I want to search Column A and Column B simultaneously?

String sql = \"SELECT * FROM \"         


        

Answer 1

This solved my problem:

String sql = "SELECT * FROM " + TABLE_NAME +
                " WHERE " + ColumnA + " OR " + ColumnB + " LIKE ? ORDER BY " + ColumnA + " LIMIT 100";

I should use one select statement.

Answer 2

Are you looking for UNION instead of OR? http://www.tutorialspoint.com/sqlite/sqlite_unions_clause.htm

Answer 3

You can use OR to connect two expressions. However, both must be complete expressions:

SELECT ... WHERE ColA LIKE ? OR ColB LIKE ? ...

Answer 4

Make two differrent query. And combine results by union keyword.

select * from TABLE_NAME where columnA like ? order by columnA limit 100
union
select * from TABLE_NAME where columnB like ? order by columnA limit 100