我尝试通过Java执行查询,如下所示:
public ResultSet execSumStatment2() throws SQLException{
String query = "Select SUM(A) as NCCSeptember from NCC where Datum >= '01-09-2013 00:00:00' and Datum <= '30-09-2013 23:59:59'";
return execStatement(query);
}
然后在类中调用execSumStatement:
sql.execSumStatement2 () ;
当我运行它时,我得到以下错误消息:
java.sql.SQLDataException:ORA-01830:日期格式图片在转换整个输入字符串之前结束
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208)
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:886)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1175)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3657)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1495)
at com.bachelorarbeit.SQLExecutor.execStatement(SQLExecutor.java:20)
at com.bachelorarbeit.SQLExecutor.execSumStatment2(SQLExecutor.java:56)
at com.bachelorarbeit.Test.doGet(Test.java:63)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
当我在SQL Developer中执行相同的查询时,它工作正常。我已经在Internet上进行了搜索,我猜问题是查询中日期的数据类型,应该是日期,但我尝试的所有方法都不起作用...
7条答案
按热度按时间bnlyeluc1#
我认为你不应该依赖隐式转换,这是一种不好的做法。
相反,您应该这样尝试:
或类似
zy1mlcev2#
你可以试试这个:
mjqavswn3#
在SQL Developer中..转至“首选项”--〉“NLS”--〉并相应地更改日期格式
v7pvogib4#
您在sql字符串中写入的是
Timestamp
,而不是Date
。您必须将其转换为Date
或将数据库字段的类型更改为Timestamp
才能正确显示。wswtfjt75#
你可以尝试如下它为我工作
您也可以尝试使用to_char,但请记住to_char的开销太大
TRUNC(2018年9月17日08:30:11)将给出2018年9月17日00:00:00作为结果,您可以单独比较唯一的日期部分,时间部分将跳过。
m528fe3b6#
您可以使用
第一个月
如果在SP中使用它,则变量数据类型应为
Varchar2
and also in your ado.net code the datatype of your input parameter should be
OracleDbType.Varchar2
基本上我必须在我的SP中放置一个DateFrom和DateTo过滤器,所以我将日期作为字符串传递给它。
8xiog9wr7#