Question

我想获取日期和时间大于给定日期的行。这是我的表：

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

鉴于date为18.01.2015，time为17:00:00。期望的值是：

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。以下是执行查询的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？

Answer 1

试试这个，由于您有Evdate和EvTime

两个不同的列

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

<强>更新 -

附加fiddle会很有帮助。

Answer 2

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。持久计算列将允许索引

ALTER TABLE table1 ADD cEVdatetime AS EvDate + EvTime PERSISTED

Answer 3

这可能有助于你

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')

Answer 4

我假设EvDate数据类型是Date，EvTime数据类型是Time。试试这个......

选择 *来自yourtablename 其中CONVERT（VARCHAR（20），EvDate，112）＆gt; = 20150118 AND EvTime＆gt; ='17:00:00'

sql查询按日期和时间获取数据

4 个答案: