Re: [eclipse-clp-users] Dbi Query with more than 1 columns

From: Edgaonkar, Shrirang <Shrirang.Edgaonkar_at_...390...>
Date: Fri, 30 Jan 2015 02:11:38 +0000
Dear Kish,

  Yes. That was a mistake but the problem is still the same. Even if the template is correct as per the documentation as follows, eclipse still crashes.

SQL = "select enum, ename, esalary, ejob from employees where esalary > 1000",
Template = emp(1234,"some name",1000.0,’some job’),
session_sql_query(H, Template, SQL, Cursor),
cursor_next_tuple(Cursor,Tuple),

Following is the example I am running,.

Table Structure:-

CREATE TABLE `goodsinfo` (
  `goodsid` int(11) NOT NULL,
  `goodsname` char(100) DEFAULT NULL,
  `price` double DEFAULT NULL,
  `salesdate` datetime DEFAULT NULL,
  `term` char(100) DEFAULT NULL,
  `zaikoamount` double DEFAULT NULL,
  `registerdate` datetime DEFAULT NULL,
  `categoryid` int(11) DEFAULT NULL,
  `searchViews` char(100) DEFAULT NULL,
  PRIMARY KEY (`goodsid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;


Eclipse script:-

:- lib(dbi).
solve(Result) :-
 
session_start("root", "", [], Session),
SQL = "SELECT goodsid, goodsname, term FROM simulator.goodsinfo",
Template = goodsinfo1(101, "fdfdfddsdad", "dsdsadsds"),
session_sql_query(Session, Template, SQL, Cursor),
cursor_all_tuples(Cursor, Result),
cursor_close(Cursor),
session_close(Session).

Since gooodsname and term are character string fields, eclipse will crash, whereas the following code will work.


:- lib(dbi).
solve(Result) :-
 
session_start("root", "", [], Session),
SQL = "SELECT goodsid, goodsname FROM simulator.goodsinfo",
Template = goodsinfo1(101, "fdfdfddsdad"),
session_sql_query(Session, Template, SQL, Cursor),
cursor_all_tuples(Cursor, Result),
cursor_close(Cursor),
session_close(Session).

Please help.

Thanks and Regards,
Shrirang Edgaonkar

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Received on Fri Jan 30 2015 - 02:12:52 CET

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