得到上週從sqlite數據庫的信息

Question

我在我的項目中有一個sqlite數據庫，我有3 year，month和day字段。我想從我的表中獲取上週或上個月的信息，並使用遊標適配器將其顯示在listView中。我不知道該怎麼做。我的表不是很大，我的記錄按日期排序，所以迭代可以是一個答案。請以任何方式幫助我。

Answer 1

SELECT * FROM myTable WHERE DATE(timeStamp) >= DATE('now', 'weekday 0', '-7 days'); 

Answer 2

如果表是這樣的

CREATE TABLE t(some_data, year, month, day); 

INSERT INTO t(some_data, year, month, day) 
        SELECT ABS(RANDOM()%10000), 2013, 8, 6 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 8, 4 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 8, 01 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 07, 31 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 7, 30 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 7, 25 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 07, 24 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 7, 23 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 7, 20 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 7, 10 UNION ALL 
        SELECT ABS(RANDOM()%10000), 2013, 7, 9 
; 

這是一個可能的解決方案

SELECT some_data, year 
    || '-' || 
    CASE WHEN LENGTH(month) = 2 THEN month 
     WHEN LENGTH(month) = 1 THEN 0 || month 
    END 
    || '-' || 
    CASE WHEN LENGTH(day) = 2 THEN day 
     WHEN LENGTH(day) = 1 THEN 0 || day 
    END as d 
FROM t 
WHERE DATE(d) >= DATE('now', '-7 days') 
ORDER BY d; 


some_data d   
---------- ---------- 
7455  2013-07-30 
6123  2013-07-31 
6903  2013-08-01 
9332  2013-08-04 
1895  2013-08-06