Minor changes to schema.

mark.george / marking

Browse code Minor changes to schema.
1 parent 90bfc7a commit 0632910a44b368317226299e52b634e483ec4514 Mark George authored on 15 Sep 2017

Patch

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CREATE TABLE assessment ( name VARCHAR PRIMARY KEY, bonus_weight DOUBLE NOT NULL, outof DOUBLE NOT NULL ); CREATE TABLE category ( category VARCHAR PRIMARY KEY, sort_order SMALLINT ); CREATE TABLE criterion ( criterion VARCHAR PRIMARY KEY, category VARCHAR NOT NULL, description VARCHAR NOT NULL, sort_order SMALLINT, weight REAL, min SMALLINT, max SMALLINT, special BOOLEAN, CONSTRAINT fk_criterion_category FOREIGN KEY(category) REFERENCES category( category) ); CREATE TABLE submission ( student VARCHAR PRIMARY KEY ); CREATE TABLE result ( student VARCHAR NOT NULL, criterion VARCHAR NOT NULL, result REAL NOT NULL, comment VARCHAR, CONSTRAINT pk_result PRIMARY KEY(student, criterion), CONSTRAINT fk_result_student FOREIGN KEY(student) REFERENCES submission( student), CONSTRAINT fk_result_criterion FOREIGN KEY(criterion) REFERENCES criterion( criterion) ); CREATE VIEW weighted_mark AS SELECT student, Sum(weighted) * (SELECT outof FROM assessment) AS MARK FROM (SELECT student, result, weight, max, ( result / max * ( weight / (SELECT Sum(weight) FROM criterion WHERE NOT special) ) ) AS WEIGHTED FROM result INNER JOIN criterion ON result.criterion = criterion.criterion WHERE NOT special) GROUP BY student; -- UNION is a hack to ensure we always get something even if there are no special criterion CREATE VIEW weighted_special AS SELECT student, Sum(special) * (SELECT bonus_weight FROM assessment) AS special FROM ( SELECT student, result AS SPECIAL FROM result INNER JOIN criterion ON criterion.criterion = result.criterion WHERE special UNION ALL SELECT DISTINCT student, 0 FROM result ) GROUP BY student; CREATE VIEW mark AS SELECT weighted_mark.student, Round(Casewhen(mark + special <= (SELECT outof FROM assessment), mark + special, ( SELECT outof FROM assessment)), 5) AS MARK FROM weighted_mark INNER JOIN weighted_special ON weighted_mark.student = weighted_special.student; CREATE VIEW marking_schedule AS SELECT criterion.category, description, weight, max AS OUTOF FROM criterion INNER JOIN category ON category.category = criterion.category ORDER BY category.sort_order, criterion.sort_order; CREATE TABLE PUBLIC.STUDENTS( STUDENTID VARCHAR primary key, NAME VARCHAR, USERCODE VARCHAR, email VARCHAR, SEND_FEEDBACK BOOLEAN ) CREATE VIEW feedback AS SELECT student, category.category, comment FROM criterion INNER JOIN result ON result.criterion = criterion.criterion INNER JOIN category ON criterion.category = category.category WHERE comment <> '' ORDER BY category.sort_order, criterion.sort_order; CREATE VIEW allmarks("Student", "Weighted Mark", "Marking Complete") AS SELECT submission.student, COALESCE(Cast(Round(mark, 2) AS VARCHAR), '') AS mark, COALESCE(Cast(complete AS VARCHAR), '') AS complete FROM submission LEFT JOIN mark ON submission.student = mark.student LEFT JOIN (SELECT student, Count(criterion) = (SELECT Count(criterion) FROM criterion) AS complete FROM result GROUP BY student) c ON submission.student = c.student; -- use this if you want to produce useful category totals (and you don't care about weighting for individual criterion) UPDATE criterion SET weight = Cast(max AS DOUBLE) / (SELECT Count() FROM criterion); -- view for showing relative weightings as percentages of total mark create view weighted_schedule as select cat.category, criterion, description, weight, special, round(weight / total_weight 100, 2) as relative_weight from criterion crit, (select sum(weight) as total_weight from criterion where not special) inner join category cat on crit.category = cat.category order by cat.sort_order, crit.sort_order create view weighted_categories as select category,round(sum(relative_weight),1) as weight FROM WEIGHTED_SCHEDULE where not special group by category --recorded by studentid create view report as select a.name as assessment, a.outof, s.studentid, s.name, s.usercode, cat.category, cat.sort_order as cat_order, cr.description as criterion, cr.max as max, cr.sort_order as cr_order, r.result,r.comment, round(m.mark,3) as mark from assessment a join category cat inner join criterion cr on cat.category = cr.category inner join result r on r.criterion=cr.criterion inner join students s on cast(r.student as integer)=cast(s.studentid as integer) inner join mark m on cast(m.studentid as integer)=cast(s.studentid as integer) order by studentid, cat_order,cr_order --recorded by usercode create view report as select a.name as assessment, a.outof, s.studentid, s.name, s.usercode, cat.category, cat.sort_order as cat_order, cr.description as criterion, cr.max as max, cr.sort_order as cr_order, r.result,r.comment, round(m.mark,3) as mark from assessment a join category cat inner join criterion cr on cat.category = cr.category inner join result r on r.criterion=cr.criterion inner join students s on r.student =s.usercode inner join mark m on r.student = m.student order by studentid, cat_order,cr_order CREATE TABLE assessment ( name VARCHAR PRIMARY KEY, bonus_weight DOUBLE NOT NULL, outof DOUBLE NOT NULL ); CREATE TABLE category ( category VARCHAR PRIMARY KEY, sort_order SMALLINT ); CREATE TABLE criterion ( criterion VARCHAR PRIMARY KEY, category VARCHAR NOT NULL, description VARCHAR NOT NULL, sort_order SMALLINT, weight REAL, min SMALLINT, max SMALLINT, special BOOLEAN, CONSTRAINT fk_criterion_category FOREIGN KEY(category) REFERENCES category( category) ); CREATE TABLE submission ( student VARCHAR PRIMARY KEY ); CREATE TABLE result ( student VARCHAR NOT NULL, criterion VARCHAR NOT NULL, result REAL NOT NULL, comment VARCHAR, CONSTRAINT pk_result PRIMARY KEY(student, criterion), CONSTRAINT fk_result_student FOREIGN KEY(student) REFERENCES submission( student), CONSTRAINT fk_result_criterion FOREIGN KEY(criterion) REFERENCES criterion( criterion) ); CREATE VIEW weighted_mark AS SELECT student, Sum(weighted) * (SELECT outof FROM assessment) AS MARK FROM (SELECT student, result, weight, max, ( result / max * ( weight / (SELECT Sum(weight) FROM criterion WHERE NOT special) ) ) AS WEIGHTED FROM result INNER JOIN criterion ON result.criterion = criterion.criterion WHERE NOT special) GROUP BY student; -- UNION is a hack to ensure we always get something even if there are no special criterion CREATE VIEW weighted_special AS SELECT student, Sum(special) * (SELECT bonus_weight FROM assessment) AS special FROM ( SELECT student, result AS SPECIAL FROM result INNER JOIN criterion ON criterion.criterion = result.criterion WHERE special UNION ALL SELECT DISTINCT student, 0 FROM result ) GROUP BY student; CREATE VIEW mark AS SELECT weighted_mark.student, Round(Casewhen(mark + special <= (SELECT outof FROM assessment), mark + special, ( SELECT outof FROM assessment)), 5) AS MARK FROM weighted_mark INNER JOIN weighted_special ON weighted_mark.student = weighted_special.student; CREATE VIEW marking_schedule AS SELECT criterion.category, description, weight, max AS OUTOF FROM criterion INNER JOIN category ON category.category = criterion.category ORDER BY category.sort_order, criterion.sort_order; CREATE TABLE PUBLIC.STUDENTS( STUDENTID VARCHAR primary key, NAME VARCHAR, USERCODE VARCHAR, email VARCHAR, SEND_FEEDBACK BOOLEAN ) CREATE VIEW feedback AS SELECT student, category.category, comment FROM criterion INNER JOIN result ON result.criterion = criterion.criterion INNER JOIN category ON criterion.category = category.category WHERE comment <> '' ORDER BY category.sort_order, criterion.sort_order; CREATE VIEW allmarks("Student", "Weighted Mark", "Marking Complete") AS SELECT submission.student, COALESCE(Cast(Round(mark, 2) AS VARCHAR), '') AS mark, COALESCE(Cast(complete AS VARCHAR), '') AS complete FROM submission LEFT JOIN mark ON submission.student = mark.student LEFT JOIN (SELECT student, Count(criterion) = (SELECT Count(criterion) FROM criterion) AS complete FROM result GROUP BY student) c ON submission.student = c.student; -- use this if you want to produce useful category totals (and you don't care about weighting for individual criterion) UPDATE criterion SET weight = Cast(max AS DOUBLE) / (SELECT Count() FROM criterion); -- view for showing relative weightings as percentages of total mark create view weighted_schedule as select cat.category, criterion, description, weight, special, round(weight / total_weight 100, 2) as relative_weight from criterion crit, (select sum(weight) as total_weight from criterion where not special) inner join category cat on crit.category = cat.category order by cat.sort_order, crit.sort_order create view weighted_categories as select category,round(sum(relative_weight),1) as weight FROM WEIGHTED_SCHEDULE where not special group by category --recorded by studentid create view report as select a.name as assessment, a.outof, s.studentid, s.name, s.usercode, cat.category, cat.sort_order as cat_order, cr.description as criterion, cr.max as max, cr.sort_order as cr_order, r.result,r.comment, round(m.mark,2) as mark from assessment a join category cat inner join criterion cr on cat.category = cr.category inner join result r on r.criterion=cr.criterion inner join students s on cast(r.student as integer)=cast(s.studentid as integer) inner join mark m on cast(m.student as integer)=cast(s.studentid as integer) order by studentid, cat_order,cr_order --recorded by usercode create view report as select a.name as assessment, a.outof, s.studentid, s.name, s.usercode, cat.category, cat.sort_order as cat_order, cr.description as criterion, cr.max as max, cr.sort_order as cr_order, r.result,r.comment, round(m.mark,2) as mark from assessment a join category cat inner join criterion cr on cat.category = cr.category inner join result r on r.criterion=cr.criterion inner join students s on r.student =s.usercode inner join mark m on r.student = m.student order by studentid, cat_order,cr_order

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src/schema.sql

CREATE TABLE assessment
  (
     name         VARCHAR PRIMARY KEY,
     bonus_weight DOUBLE NOT NULL,
     outof        DOUBLE NOT NULL
  );

CREATE TABLE category
  (
     category   VARCHAR PRIMARY KEY,
     sort_order SMALLINT
  );

CREATE TABLE criterion
  (
     criterion   VARCHAR PRIMARY KEY,
     category    VARCHAR NOT NULL,
     description VARCHAR NOT NULL,
     sort_order  SMALLINT,
     weight      REAL,
     min         SMALLINT,
     max         SMALLINT,
     special     BOOLEAN,
     CONSTRAINT fk_criterion_category FOREIGN KEY(category) REFERENCES category(
     category)
  );

CREATE TABLE submission
  (
     student VARCHAR PRIMARY KEY
  );

CREATE TABLE result
  (
     student   VARCHAR NOT NULL,
     criterion VARCHAR NOT NULL,
     result    REAL NOT NULL,
     comment   VARCHAR,
     CONSTRAINT pk_result PRIMARY KEY(student, criterion),
     CONSTRAINT fk_result_student FOREIGN KEY(student) REFERENCES submission(
     student),
     CONSTRAINT fk_result_criterion FOREIGN KEY(criterion) REFERENCES criterion(
     criterion)
  );

CREATE VIEW weighted_mark
AS
  SELECT student,
         Sum(weighted) * (SELECT outof
                          FROM   assessment) AS MARK
  FROM   (SELECT student,
                 result,
                 weight,
                 max,
                 ( result / max * ( weight / (SELECT Sum(weight)
                                              FROM   criterion
                                              WHERE  NOT special) ) ) AS
                 WEIGHTED
          FROM   result
                 INNER JOIN criterion
                         ON result.criterion = criterion.criterion
          WHERE  NOT special)
  GROUP  BY student;

-- UNION is a hack to ensure we always get something even if there are no special criterion
CREATE VIEW weighted_special
AS
  SELECT student,
         Sum(special) * (SELECT bonus_weight
                         FROM   assessment) AS special
  FROM
         (
				SELECT student,
						 result AS SPECIAL
				FROM   result
						 INNER JOIN criterion
									ON criterion.criterion = result.criterion
				WHERE  special

UNION ALL

SELECT DISTINCT student, 0
				FROM   result
         )

GROUP  BY student;

CREATE VIEW mark
AS
  SELECT weighted_mark.student,
         Round(Casewhen(mark + special <= (SELECT outof
                                           FROM   assessment), mark + special, (
               SELECT
               outof
               FROM
               assessment)), 5) AS MARK
  FROM   weighted_mark
         INNER JOIN weighted_special
                 ON weighted_mark.student = weighted_special.student;

CREATE VIEW marking_schedule
AS
  SELECT criterion.category,
         description,
         weight,
         max AS OUTOF
  FROM   criterion
         INNER JOIN category
                 ON category.category = criterion.category
  ORDER  BY category.sort_order,
            criterion.sort_order;

CREATE TABLE PUBLIC.STUDENTS(
    STUDENTID VARCHAR primary key,
    NAME VARCHAR,
    USERCODE VARCHAR,
		email VARCHAR,
    SEND_FEEDBACK BOOLEAN
)

CREATE VIEW feedback
AS
  SELECT student,
         category.category,
         comment
  FROM   criterion
         INNER JOIN result
                 ON result.criterion = criterion.criterion
         INNER JOIN category
                 ON criterion.category = category.category
  WHERE  comment <> ''
  ORDER  BY category.sort_order,
            criterion.sort_order;

CREATE VIEW allmarks("Student", "Weighted Mark", "Marking Complete")
AS
	SELECT submission.student,
			 COALESCE(Cast(Round(mark, 2) AS VARCHAR), '') AS mark,
			 COALESCE(Cast(complete AS VARCHAR), '')       AS complete
	FROM   submission
			 LEFT JOIN mark
					  ON submission.student = mark.student
			 LEFT JOIN (SELECT student, Count(criterion) = (SELECT Count(criterion) FROM criterion)
							AS complete
							FROM result
							GROUP BY student) c ON submission.student = c.student;

-- use this if you want to produce useful category totals (and you don't care about weighting for individual criterion)
UPDATE criterion
SET    weight = Cast(max AS DOUBLE) / (SELECT Count(*)
                                       FROM   criterion);

-- view for showing relative weightings as percentages of total mark
create view weighted_schedule as
select cat.category, criterion, description, weight, special, round(weight / total_weight * 100, 2) as relative_weight
from criterion crit, (select sum(weight) as total_weight from criterion where not special)
inner join category cat on crit.category = cat.category
order by cat.sort_order, crit.sort_order

create view weighted_categories as
select category,round(sum(relative_weight),1) as weight FROM WEIGHTED_SCHEDULE where not special group by category

--recorded by studentid
create view report as
select
	a.name as assessment, a.outof,
	s.studentid, s.name, s.usercode,
	cat.category, cat.sort_order as cat_order,
	cr.description as criterion, cr.max as max, cr.sort_order as cr_order,
	r.result,r.comment,
	round(m.mark,3) as mark
from assessment a
	join category cat
	inner join criterion cr on cat.category = cr.category
	inner join result r on r.criterion=cr.criterion
	inner join students s on cast(r.student as integer)=cast(s.studentid as integer)
	inner join mark m on cast(m.studentid as integer)=cast(s.studentid as integer)
order by studentid, cat_order,cr_order

--recorded by usercode
create view report as
select
	a.name as assessment, a.outof,
	s.studentid, s.name, s.usercode,
	cat.category, cat.sort_order as cat_order,
	cr.description as criterion, cr.max as max, cr.sort_order as cr_order,
	r.result,r.comment,
	round(m.mark,3) as mark
from assessment a
	join category cat
	inner join criterion cr on cat.category = cr.category
	inner join result r on r.criterion=cr.criterion
	inner join students s on r.student =s.usercode
	inner join mark m on r.student = m.student
order by studentid, cat_order,cr_order

CREATE TABLE assessment
  (
     name         VARCHAR PRIMARY KEY,
     bonus_weight DOUBLE NOT NULL,
     outof        DOUBLE NOT NULL
  );

CREATE TABLE category
  (
     category   VARCHAR PRIMARY KEY,
     sort_order SMALLINT
  );

CREATE TABLE submission
  (
     student VARCHAR PRIMARY KEY
  );

UNION ALL

SELECT DISTINCT student, 0
				FROM   result
         )

GROUP  BY student;

CREATE TABLE PUBLIC.STUDENTS(
    STUDENTID VARCHAR primary key,
    NAME VARCHAR,
    USERCODE VARCHAR,
		email VARCHAR,
    SEND_FEEDBACK BOOLEAN
)

create view weighted_categories as
select category,round(sum(relative_weight),1) as weight FROM WEIGHTED_SCHEDULE where not special group by category

--recorded by studentid
create view report as
select
a.name as assessment, a.outof,
s.studentid, s.name, s.usercode,
cat.category, cat.sort_order as cat_order,
cr.description as criterion, cr.max as max, cr.sort_order as cr_order,
r.result,r.comment,
round(m.mark,2) as mark
from assessment a
join category cat
inner join criterion cr on cat.category = cr.category
inner join result r on r.criterion=cr.criterion
inner join students s on cast(r.student as integer)=cast(s.studentid as integer)
inner join mark m on cast(m.student as integer)=cast(s.studentid as integer)
order by studentid, cat_order,cr_order

--recorded by usercode
create view report as
select
	a.name as assessment, a.outof,
	s.studentid, s.name, s.usercode,
	cat.category, cat.sort_order as cat_order,
	cr.description as criterion, cr.max as max, cr.sort_order as cr_order,
	r.result,r.comment,
	round(m.mark,2) as mark
from assessment a
	join category cat
	inner join criterion cr on cat.category = cr.category
	inner join result r on r.criterion=cr.criterion
	inner join students s on r.student =s.usercode
	inner join mark m on r.student = m.student
order by studentid, cat_order,cr_order

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