我的查询是：
SELECT c.ID AS ClientID, c.name AS ClientName, f.ID AS ProjectID,f.formatName
AS ProjectName,w.ID AS WaveID, w.wave AS WaveName, w.startDate AS StartDate, w.endDate AS
Enddate
FROM clients AS c
INNER JOIN formats AS f ON f.clientID = c.ID
INNER JOIN waves AS w ON w.formatID = f.ID
WHERE c.ID =52
ORDER BY w.startDate
它的输出如下
ClientID ClientName ProjectID ProjectName WaveID WaveName StartDate Enddate
52 SilkBank 181 Eman Islamic 402 Wave-1 2014-01-13 2014-01-31
52 SilkBank 180 Branch Banking 400 Wave-1 2014-01-13 2014-01-31
52 Silk8ank 182 Middle Mkt. Branches 403 Wave-1 2014-01-13 2014-01-31
52 SilkBank 182 Middle Mkt. Branches 413 Wave-2 2014-02-11 2014-02-28
52 SilkBank 180 Branch Banking 412 Wave-2 2014-02-11 2014-02-28
52 SilkBank 181 Eman Islamic 411 Wave-2 2014-02-11 2014-02-28
52 SilkBank 181 Eman Islamic 428 Wave-3 2014-03-17 2014-03-31
52 SilkBank 180 Branch Banking 430 Wave-3 2014-03-17 2014-03-31
52 SilkBank 182 Middle Mkt. Branches 429 Wave-3 2014-03-17 2014-03-31
然后我通过startDate及其输出将其分组如下：
ClientID ClientName ProjectID ProjectName WaveID WaveName StartDate Enddate
52 Silk8ank 182 Middle Mkt. Branches 403 Wave-1 2014-01-13 2014-01-31
52 SilkBank 181 Eman Islamic 411 Wave-2 2014-02-11 2014-02-28
52 SilkBank 182 Middle Mkt. Branches 429 Wave-3 2014-03-17 2014-03-31
现在我的问题是，当我将这些waveID分组为单个单元时，它只显示403.我想将分组的ID分组成一个数组或其他东西。
到目前为止，我到处都找到了小组。不知道这叫什么;为什么无法搜索。
任何帮助!!谢谢