Question

我有这样的查询

SELECT seq, idtransaction, tanggal, tmptanggal, tgljatuhtempo,  
@kodeku:=kodetb as kodetb, memberid, namadepan, namabelakang, tipekartu,nokk, 
namabank, cf_1095, gesekan, amount, @ha:=if (seq=1, tmpkuranggesek-amount,@ha-
amount) as kuranggesek   from
( SELECT 
 IFNULL(@subject,@subject := vtiger_servicecontracts.subject), IF(@subject <> 
vtiger_servicecontracts.subject, @sec := 1, @sec := @sec+1) , @sec AS seq,
 IF(@subject <> vtiger_servicecontracts.subject, @subject := 
vtiger_servicecontracts.subject, ''), 
DATE_FORMAT(paymentdate ,'%d/%m/%Y') as tanggal, 
 DATE_FORMAT(due_date ,'%d/%m/%Y') as tgljatuhtempo, tmp.tanggal as tmptanggal,
tmp.kuranggesek as tmpkuranggesek,idtransaction,
 vtiger_servicecontracts.subject as kodetb, @amount:=amount as amount,
 vtiger_servicecontracts.subject as subject, vtiger_contactdetails.contactid as memberid, campaignname as nokk, vtiger_contactdetails.firstname as namadepan, vtiger_contactdetails.lastname as namabelakang, vtiger_leaddetails.lastname as tipekartu, cf_1085 as namabank,cf_1095, amount as gesekan, @ha:=@ha-amount FROM `vtiger_accounting_payments`, vtiger_accounting ,vtiger_servicecontracts,vtiger_servicecontractscf, vtiger_vendorcf, vtiger_crmentity,vtiger_user2role, vtiger_role, vtiger_users,vtiger_leaddetails, vtiger_contactdetails, vtiger_campaign, (select @sec := 0, @subject := null    
) sel,  temp_kuranggesek_stafsda tmp 
WHERE vtiger_crmentity.crmid=vtiger_accounting_payments.idtransaction 
and vtiger_servicecontracts.subject=tmp.kodetb
and vtiger_accounting_payments.machinename=vtiger_vendorcf.cf_1077
and vtiger_accounting.accountingrelated2=vtiger_servicecontracts.servicecontractsid      and vtiger_servicecontractscf.servicecontractsid=vtiger_servicecontracts.servicecontractsid and accountingtype='Pelunasan Gesek' and 
vtiger_accounting_payments.idtransaction=vtiger_accounting.accountingid and 
vtiger_crmentity.deleted=0 and vtiger_user2role.userid=vtiger_users.id and 
vtiger_crmentity.smcreatorid=vtiger_user2role.userid and   
vtiger_user2role.roleid=vtiger_role.roleid and vtiger_users.user_name='staff' and cf_1091=leadid and  
vtiger_contactdetails.contactid=vtiger_servicecontracts.contactid and 
vtiger_campaign.campaignid=cf_1155 and date_format(paymentdate,'%Y-%m-%d') = date_format('2016-03-14','%Y-%m-%d') order by vtiger_servicecontracts.subject 
)     
AS temp

当tmp_kuranggesek_stafsda表有这样的数据时，此查询成功运行：

tanggal      kodetb    kuranggesek
10-03-2016   1         600
11-03-2016   2         550

但是当一个kodetb有两个日期时，如下所示：

tanggal      kodetb    kuranggesek
10-03-2016   1         600
11-03-2016   2         550
11-03-2016   2         100

查询将重复显示数据作为列tanggal，因为kodetb“2”有2个日期。

我的问题是：

如何使此查询只能从表temp_kuranggesek_stafsda中选择1个日期，该日期具有所选kodetb的最新日期？

Answer 1

您可以使用aggregate function 。你应该使用MAX()之类的

SELECT MAX(tanggal),kodetb, kuranggesek 
FROM table_name
GROUP BY kodetb;

你的查询很长，所以我只读了一个问题。根据您的要求，您应该使用聚合函数。

SELECT MAX(tanggal),kodetb, kuranggesek 
FROM (
SELECT seq, idtransaction, tanggal, tmptanggal, tgljatuhtempo,  
@kodeku:=kodetb as kodetb, memberid, namadepan, namabelakang, tipekartu,nokk, 
namabank, cf_1095, gesekan, amount, @ha:=if (seq=1, tmpkuranggesek-amount,@ha-
amount) as kuranggesek   from
( SELECT 
 IFNULL(@subject,@subject := vtiger_servicecontracts.subject), IF(@subject <> 
vtiger_servicecontracts.subject, @sec := 1, @sec := @sec+1) , @sec AS seq,
 IF(@subject <> vtiger_servicecontracts.subject, @subject := 
vtiger_servicecontracts.subject, ''), 
DATE_FORMAT(paymentdate ,'%d/%m/%Y') as tanggal, 
 DATE_FORMAT(due_date ,'%d/%m/%Y') as tgljatuhtempo, tmp.tanggal as tmptanggal,
tmp.kuranggesek as tmpkuranggesek,idtransaction,
 vtiger_servicecontracts.subject as kodetb, @amount:=amount as amount,
 vtiger_servicecontracts.subject as subject, vtiger_contactdetails.contactid as memberid, campaignname as nokk, vtiger_contactdetails.firstname as namadepan, vtiger_contactdetails.lastname as namabelakang, vtiger_leaddetails.lastname as tipekartu, cf_1085 as namabank,cf_1095, amount as gesekan, @ha:=@ha-amount FROM `vtiger_accounting_payments`, vtiger_accounting ,vtiger_servicecontracts,vtiger_servicecontractscf, vtiger_vendorcf, vtiger_crmentity,vtiger_user2role, vtiger_role, vtiger_users,vtiger_leaddetails, vtiger_contactdetails, vtiger_campaign, (select @sec := 0, @subject := null    
) sel,  temp_kuranggesek_stafsda tmp 
WHERE vtiger_crmentity.crmid=vtiger_accounting_payments.idtransaction 
and vtiger_servicecontracts.subject=tmp.kodetb
and vtiger_accounting_payments.machinename=vtiger_vendorcf.cf_1077
and vtiger_accounting.accountingrelated2=vtiger_servicecontracts.servicecontractsid      and vtiger_servicecontractscf.servicecontractsid=vtiger_servicecontracts.servicecontractsid and accountingtype='Pelunasan Gesek' and 
vtiger_accounting_payments.idtransaction=vtiger_accounting.accountingid and 
vtiger_crmentity.deleted=0 and vtiger_user2role.userid=vtiger_users.id and 
vtiger_crmentity.smcreatorid=vtiger_user2role.userid and   
vtiger_user2role.roleid=vtiger_role.roleid and vtiger_users.user_name='staff' and cf_1091=leadid and  
vtiger_contactdetails.contactid=vtiger_servicecontracts.contactid and 
vtiger_campaign.campaignid=cf_1155 and date_format(paymentdate,'%Y-%m-%d') = date_format('2016-03-14','%Y-%m-%d') order by vtiger_servicecontracts.subject 
)     
AS temp) AS new_temp 
GROUP BY kodetb;

希望这对你有用。

MYSQL获取最新日期

1 个答案: