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Matlab: Database. Rewritekou
原标题:Matlab: Database. Rewrite SQL

这是我关于选举考试守则。 www.un.org/Depts/DGACM/index_french.htm

 function out = SQL_Simple( DBName, TableName, Date, DateField, SortField, Limits )

 logintimeout(60);
 conurl = [ jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)}; DBQ=  DBName];
 conn = database(  ,  ,  , sun.jdbc.odbc.JdbcOdbcDriver , conurl);


 Limits = Limits + 1;
 sql = [ SELECT * FROM   TableName ];
 sql = [sql   WHERE (  DateField   =   Date  ) ];

 interest = fetch(exec(conn, sql));


 %sql = [sql   ORDER BY   SortField   DESC  ];
 %sql = [sql   LIMIT   Limits];

 close(conn);
 out = interest.Data;
 end

并且没有工作。

这一问题有什么错误?

DateField have type adDate. Date have format dd.mm.yyyy.

p.s:

下表b:

DBTable.Name = "MyTable"
DBTable.Columns.Append "StrField", adVarWChar, 160
DBTable.Columns.Append "DoubleField", adDouble, 40
DBTable.Columns.Append "IntField", adInteger
DBTable.Columns.Append "CurField", adCurrency
DBTable.Columns.Append "Today", adDate

DateField= Today . (in matlab code)

我试图撰写这样的内容:

 sql = [ SELECT * FROM   TableName ];
 sql = [sql   WHERE (  DateField   =     Date    );  ];

工作太少: (见Date = 2010-12-31 00:00.0 , 日期: Field = 今天

问题回答

如果你把实际错误信息上调,就会有所帮助。 不过,在这种情况下,我认为一个问题是日期比较。 你们需要引述“日期”。 Try:

sql = [sql   WHERE (  DateField   =     Date    ) ]; 

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