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我想获取日期和时间大于给定日期的行。这是我的桌子：

EvDate      EvTime      ClBdg   Name    Event
18.01.2015  10:55:01    001     Jane    enter
18.01.2015  19:31:21    003     Brad    exit
19.01.2015  13:31:21    002     Lucy    exit

给定date的是18.01.2015，time是17:00:00。期望值为：

EvDate      EvTime      ClBdg   Name    Event
18.01.2015  19:31:21    003     Brad    exit
19.01.2015  13:31:21    002     Lucy    exit

任何人都可以帮助我吗？

编辑：为了更清楚，我编辑了我的帖子。这是执行查询的java代码： 

private static final SimpleDateFormat sdfTime=new SimpleDateFormat("HH:mm:ss");  
private static final SimpleDateFormat sdfDate=new SimpleDateFormat("dd.MM.yyyy");  
private long givenTimeStamp = 1421600400L;
public static Date givenDate = new Date(givenTimeStamp);

Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");  
String DATABASE = "jdbc:ucanaccess://"+CONF.getString("db.location")+";jackcessOpener=uz.lexus.access.crypto.MyCryptoProvider";  
connection= DriverManager.getConnection(DATABASE, null, null);  

List<Event> events=new ArrayList<Event>();  
String selectEvents = "select EvDate,EvTime,ClBdg,Event from Evntlog_tbl where  Event in ('enter','exit') and not ClBdg=0 and EvDate >= ? and EvTime > ?  order by EvDate desc, EvTime desc";
PreparedStatement prstm= connection.prepareStatement(selectEvent);  
java.sql.Date date=new java.sql.Date(sdfDate.parse(sdfDate.format()).getTime(givenDate));  
java.sql.Time time=new Time(sdfTime.parse(sdfTime.format(givenDate)).getTime());  

prstm.setDate(1,date);  
prstm.setTime(2,time); 

ResultSet rs = prstm.executeQuery();

现在的问题是：selectEvent 中的查询是否正确？

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4 回答 4

4

试试这个，因为你有两个不同的列Evdate和EvTime 

SELECT * FROM table_name WHERE EvDate >'18.01.2015'  OR (EvDate = '18.01.2015' AND EvTime > '17:00:00'

更新-

附上小提琴，会有帮助的。

于 2015-01-19T10:34:58.793 回答
3 
SELECT *  
FROM table1 
WHERE EvDate + EvTime > '2015-01-18T17:00:00'

相反，您可以考虑创建一个添加日期和时间的 PERSISTED 计算列。持久化计算列将允许索引

ALTER TABLE table1 ADD cEVdatetime AS EvDate + EvTime PERSISTED
于 2015-01-19T10:42:17.757 回答
0

这可能对你有帮助

declare @t table(a date,b time)
insert into  @t values (getdate(),'7:00:00 AM')

select * from @t
where a>'2015/01/19' or (a=getdate() and a>'6:00:00 AM')
于 2015-01-19T10:34:59.227 回答
0

我假设 EvDate 数据类型是 Date 并且 EvTime 数据类型是 Time 。尝试这个 ....

select * from yourtablename where CONVERT(VARCHAR(20),EvDate ,112)>=20150118 AND EvTime >='17:00:00'

于 2015-01-19T10:49:04.460 回答