如何使用两个条件查询 SQLite 数据库？

Question

我有一个关于员工的表，包含 3 列，如下代码：

 db.execSQL("CREATE TABLE " + TABLE_NAME + " (" + _ID
                + " INTEGER PRIMARY KEY AUTOINCREMENT, " + DEPT
                + " TEXT NOT NULL," + NAME + " TEXT NOT NULL," + CITY + " TEXT NOT NULL);");

现在我只想显示同一部门和城市的员工（即胡志明市和销售部门的员工）。我怎样查询才能得到它？

Answer 1

@DienTrinh，你说得对，请注意 AND 周围的空格。那应该对你有用。

 Cursor cursor = db.query(TABLE_NAME, 
                          new String [] {_ID, NAME, DEPT, CITY }, 
                          DEPT +"=?" +" AND " + CITY +"=?", 
                          new String[] {"Sales", "HCM" }, 
                          null, null, null);

Answer 2

解决办法是：

SELECT * FROM Employess 
WHERE DEPT='Sales' COLLATE NOCASE AND City='HCM' COLLATE NOCASE

Answer 3

SELECT * FROM Employees WHERE DEPT='Sales' AND City='HCM'