原创 mysql update set from
update ds_user_role_relation a join system_userinfo b on (a.USER_CODE=b.USER_CODE) set a.ad_code =b.ADMIN_DIV_CODE;
2020-06-25 08:26:35
原创 JPA聯合主鍵及查詢
@Entity @Table(name = "Water_hour_Year", schema = "") public class WaterHourYear implements Serializable { privat
2020-06-16 08:46:08
原创 定時備份數據庫表
/** * @author 作者 :dengxiangyu * @version 創建時間：2019年4月8日 下午4:35:06 * */ @Component public class SdnBackup { pr
2020-06-08 18:38:18
原创 sql級聯查行政區
SELECT `hbi`.`HYST_CODE` AS `HYST_CODE`, `ad2`.`AD_CODE` AS `CITY_CODE`, `ad2`.`AD_NAME` AS `CITY_NAME`,
2020-06-08 18:38:18
原创 sql拼接查詢結果
SELECT group_concat(AD_NAME SEPARATOR '、') FROM `ad_base_infos` where AD_LEV=1 group_concat([DISTINCT] 要連接的字段 [Order BY
2020-06-08 18:38:18
原创 查詢樹狀結構的結果
//javabean public class OrganizationInfos implements Serializable { private static final long serialVersionUID =
2020-05-23 15:39:02
原创 sql server創建存儲過程
create procedure PRO_RAIN_HOURS @tm datetime as begin select a.stcd ,a.rn, b.測站名稱 from (SELECT stcd,s
2020-05-18 20:18:05
原创 對象集合取某個字段的集合或拼接字符串
List<RsInfoB> rsInfoBS = smallList(); //"'a','b','c'" String collect = rsInfoBS.stream().map(
2020-05-15 11:16:37
原创 JPA條件查詢，分頁
public Page<DsProcessDetails> list(Integer pageSize, Integer pageNumber, String topicCode, String sourceCode, String c
2020-05-14 04:53:10
原创 數據庫列求和，數據精度修改
public InfoVo info() { List<VWReservoirCapacity> all = vwReservoirCapacityDao.findAll(); double catchment = al
2020-05-14 04:53:10
原创 自定義對象list，指定字段去重
public List<ZmxxNew> getGateList() { List<ZmxxNew> list = gateDao.findAll(); List<ZmxxNew> unique = li
2020-04-18 23:24:35
原创 JPA查詢存儲過程，map轉對象
@Query(value = "exec PRO_WaterQualityComparison @ascd=?1, @stcds=?2, @stime=?3, @etime=?4", nativeQuery = true) List<M
2020-04-18 23:24:35