sql - SQLite:连接两个选择语句

Question

我有两个select语句，我正在寻找一种将它们合并为一个的方法。感谢您的帮助和建议。

Original:
1
2
3
4
5
6

Sql:
Select * From (Select * From tbl1 Where Id < 4 Order By Id Desc Limit 1) Order By Id;
Select * From tbl1 Where Id >= 4 Order By Id;

Result:
3
4
5
6

Answer 1

看起来您可以使用UNION SELECT。

Select * From (Select * From tbl1 Where Id < 4 Order By Id Desc Limit 1)
UNION Select * From tbl1 Where Id >= 4
Order By Id;

仅当两个语句的结果具有相同的列数和类型时才有效。