我准备好的语句在日志中产生以下错误“getVenturerSectDtls中的SQLException：java.sql.SQLException：未找到列'公里'。
准备好的声明是：
-- Nathan Rivera
-- Week 3 Lab
-- Drop Tables if they exist
set foreign_key_checks = 0;
drop table if exists ZIPCODE;
drop table if exists INSTRUCTOR;
drop table if exists STUDENT;
drop table if exists COURSE;
drop table if exists SECTION;
drop table if exists ENROLLMENT;
set foreign_key_checks = 1;
create table ZIPCODE
(
Zip integer (11),
City VARCHAR (25) NOT NULL,
State CHAR (2) NOT NULL,
constraint pk_zip primary key (Zip)
);
create table INSTRUCTOR
(
Instructor_ID integer(6),
Salutation varchar(5),
First_Name varchar(25) not null,
Last_Name varchar(25) not null,
Street_Address varchar(50),
Zip integer(11) not null,
constraint pk_instructor_id primary key (Instructor_ID)
);
create table STUDENT
(
Student_ID integer(6),
Salutation varchar(5),
First_Name varchar(25) not null,
Last_Name varchar(25) not null,
Street_Address varchar(50),
Zip integer(11) not null,
Phone varchar(15) not null,
Employer varchar(50),
Registration_Date date not null,
constraint pk_student_id primary key (Student_ID)
);
create table COURSE
(
Course_ID integer(6),
Description varchar(50) not null,
Cost decimal(8,2),
-- on the Data Dictionary it says that Prerequisite is a FK however there are no other tables that have this entry so i cannot create a FK for or from it
Prerequisite integer(6),
constraint pk_course_id primary key (Course_ID)
);
create table SECTION
(
Section_ID integer(8),
Course_Section_Name integer(6) not null,
Start_Date_Time datetime not null,
Location varchar(10),
Capacity integer(3),
Instructor_ID integer(6) not null,
Course_ID integer(6) not null,
constraint pk_section_id primary key (Section_ID)
);
create table ENROLLMENT
(
Section_ID integer(8),
Student_ID integer(6),
Enroll_Date date not null,
Final_Grade char(1),
constraint pk_section_id_enrollment primary key (Section_ID, Student_ID)
);
alter table INSTRUCTOR add constraint fk_zip_instructor foreign key (Zip) references ZIPCODE (Zip);
alter table STUDENT add constraint fk_zip_student foreign key (Zip) references ZIPCODE (Zip);
alter table SECTION add constraint fk_instructor_id_section foreign key (Instructor_ID) references INSTRUCTOR (Instructor_ID);
alter table SECTION add constraint fk_course_id_section foreign key (Course_ID) references COURSE (Course_ID);
alter table ENROLLMENT add constraint fk_section_id_enrollment foreign key (Section_ID) references SECTION (Section_ID);
insert into ZIPCODE (Zip,City,State)
values
(7024,"Ft. Lee","NJ"),
(7047,"North Bergen","NJ"),
(10005,"New York","NY"),
(10015,"New York","NY"),
(10025,"New York","NY"),
(10035,"New York","NY"),
(11419,"Richmond Hill","NY"),
(11435,"Jamaica","NY");
insert into STUDENT (Student_ID, Salutation, First_Name, Last_Name, Street_Address, Phone, Employer, Registration_Date, Zip)
values
(102,"Mr.","Fred","Crocitto","101-09 120th St.",718-555-5555,"Albert Hildegard Co.",1/22/2007,11419),
(103,"Ms.","J.","Landry","7435 Boulevard East #45",201-555-5555,"Albert Hildegard Co.",1/22/2007,7047),
(104,"Ms.","Laetia","Enison","144-61 87th Ave",718-555-5555,"Albert Hildegard Co.",1/22/2007,11435),
(105,"Mr.","Angel","Moskowitz","320 John St.",201-555-5555,"Alex. & Alexander",1/22/2007,7024),
(163,"Ms.","Nicole","Gillen","4301 N Ocean #103",904-555-5555,"Oil of America Corp.",2/2/2007,10025),
(223,"Mr.","Frank","Pace","13 Burlington Dr.",203-555-5555,"Board Utilities",2/8/2007,10025),
(399,"Mr.","Jerry","Abdou","460 15th St. #4",718-555-5555,"Health Mgmt.Systems",2/23/2007,10025);
insert into INSTRUCTOR (Instructor_ID, Salutation, First_Name, Last_Name, Street_Address, Zip)
values
(101,"Mr","Fernand","Hanks","100 East 87th",10015),
(102,"Mr","Tom","Wojick","518 West 120th",10025),
(103,"Ms","Nina","Schorin","210 West 101st",10025),
(104,"Mr","Gary","Pertez","34 Sixth Ave",10035),
(105,"Ms","Anita","Morris","34 Maiden Lane",10015),
(106,"Rev","Todd","Smythe","210 West 101st",10025),
(107,"Dr","Marilyn","Frantzen","254 Bleeker",10005);
insert into COURSE (Course_ID,Description,Cost,Prerequisite)
values
(330,"Network Administration",1195,130),
(310,"Operating Systems",1195,NULL),
(142,"Project Management",1195,20),
(140,"Systems Analysis",1195,20),
(130,"Intro to Unix",1195,310),
(25,"Intro to Programming",1195,140),
(20,"Intro to Information Systems",1195,NULL);
insert into SECTION (Section_ID,Course_ID,Course_Section_Name,Start_Date_Time,Location,Instructor_ID,Capacity)
values
(81,20,2,"2007-7-24 9:30:00","L210",103,15),
(86,25,2,"2007-6-10 9:30:00","L210",107,15),
(89,25,5,"2007-5-15 9:30:00","L509",103,25),
(92,25,8,"2007-6-13 9:30:00","L509",106,25),
(104,330,1,"2007-7-14 10:30:00","L511",104,25),
(119,142,1,"2007-7-14 9:30:00","L211",103,25),
(155,122,4,"2007-5-4 9:30:00","L210",107,15);
所以我接受SELECT语句并将其粘贴到MS Word中并将所有“和+替换为空格并将？替换为30（从客户端传递的值）然后将结果传递给phpMyAdmin SQL并运行并返回预期的结果。
我正在使用Eclipse，GWT，java，mySQL。
那么准备好的声明有什么问题吗？
我在phpMyAdmin中使用的编辑代码是：
String selectQry = ("SELECT cdID, surname, firstName, dob, archived, scoutNo, grpName, startDate, endDate, SUM(kilometres), SUM(nights) from ( " +
"SELECT at_cub_details.cd_id as cdID, at_cub_details.cd_surname as surname, at_cub_details.cd_first_name as firstName," +
" at_cub_details.cd_dob as dob, at_cub_details.cd_archived as archived, at_cub_details.cd_scout_no as scoutNo, " +
" at_group.grp_name as grpName, " +
" at_section_details.sd_start_date as startDate, at_section_details.sd_end_date as endDate, " +
" null as kilometres, null as nights " +
" FROM at_cub_details, at_account_group, at_group, at_section_details " +
" WHERE at_account_group.acc_id = ? " +
" AND at_account_group.grp_id = at_cub_details.grp_id " +
" AND at_cub_details.grp_id = at_group.grp_id " +
" AND at_cub_details.cd_id = at_section_details.cd_id " +
" AND at_section_details.sd_start_date = (SELECT MIN(section.sd_start_date) " +
" FROM at_section_details section " +
" WHERE section.cd_id = at_cub_details.cd_id " +
" AND section.sd_section = at_group.grp_section) " +
" UNION ALL " +
" SELECT at_cub_details.cd_id as cdID, at_cub_details.cd_surname as surname, at_cub_details.cd_first_name as firstName," +
" null as dob, null as archived, null as scoutNo, " +
" null as grpName, " +
" null as startDate, null as endDate, " +
" SUM(hr_kilometres) as kilometres, SUM(hr_nights_under_canvas) as nights " +
" FROM at_account_group, at_group, at_section_details, at_cub_details, at_hiking_record " +
" WHERE at_account_group.acc_id = ? " +
" AND at_account_group.grp_id = at_cub_details.grp_id " +
" AND at_cub_details.grp_id = at_group.grp_id " +
" AND at_cub_details.cd_id = at_section_details.cd_id " +
" AND at_section_details.sd_start_date = (SELECT MIN(section.sd_start_date) " +
" FROM at_section_details section " +
" WHERE section.cd_id = at_cub_details.cd_id " +
" AND section.sd_section = at_group.grp_section) " +
" AND at_cub_details.cd_id = at_hiking_record.cd_id " +
" AND at_hiking_record.hr_start_date > (SELECT MIN(section2.sd_start_date) " +
" FROM at_section_details section2 " +
" WHERE section2.cd_id = at_cub_details.cd_id " +
" AND section2.sd_section = at_group.grp_section) " +
" GROUP BY at_cub_details.cd_id " +
" UNION ALL " +
" SELECT at_cub_details.cd_id as cdID, at_cub_details.cd_surname as surname, at_cub_details.cd_first_name as firstName," +
" null as dob, null as archived, null as scoutNo, " +
" null as grpName, " +
" null as startDate, null as endDate, " +
" null as kilometres, SUM(event_nights_canvas) as nights " +
" FROM at_account_group, at_group, at_section_details, at_cub_details, at_event " +
" WHERE at_account_group.acc_id = ? " +
" AND at_account_group.grp_id = at_cub_details.grp_id " +
" AND at_cub_details.grp_id = at_group.grp_id " +
" AND at_cub_details.cd_id = at_section_details.cd_id " +
" AND at_section_details.sd_start_date = (SELECT MIN(section.sd_start_date) " +
" FROM at_section_details section " +
" WHERE section.cd_id = at_cub_details.cd_id " +
" AND section.sd_section = at_group.grp_section) " +
" AND at_cub_details.cd_id = at_event.cd_id " +
" AND at_event.event_date_start > (SELECT MIN(section2.sd_start_date) " +
" FROM at_section_details section2 " +
" WHERE section2.cd_id = at_cub_details.cd_id " +
" AND section2.sd_section = at_group.grp_section) " +
" GROUP BY at_cub_details.cd_id " +
" ) a " +
"GROUP BY surname, firstName;");
答案 0 :(得分：0)
在第一个选择语句中更改＆＃34; SUM（千米），SUM（夜晚）＆＃34;以公里为单位的公里数（公里数），晚上的公式（晚数）和＃34;。