-
Notifications
You must be signed in to change notification settings - Fork 0
/
server.js
615 lines (466 loc) · 26 KB
/
server.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
var express = require('express');
var app = express();
const morgan = require('morgan');
var oracledb = require('oracledb');
var dbpool = require('./dbconnectionPool.js')
var requestParams;
app.use(express.static(__dirname + "/app"));
app.use(morgan("combined"));
app.use((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
next();
});
async function startup() {
try {
console.log('Initializing database module');
var query = 'SELECT COUNT(*) FROM RESOURCES'
await dbpool.initialize(query);
} catch (err) {
console.error(err);
process.exit(1); // Non-zero failure code
}
}
async function shutdown(e) {
let err = e;
console.log('Shutting down');
try {
console.log('Closing database module');
await dbpool.close();
} catch (err) {
console.log('Encountered error', e);
err = err || e;
}
}
startup();
process.on('SIGTERM', () => {
console.log('Received SIGTERM');
shutdown();
});
process.on('SIGINT', () => {
console.log('Received SIGINT');
shutdown();
});
process.on('uncaughtException', err => {
console.log('Uncaught exception');
console.error(err);
shutdown(err);
});
app.get('/login', async () => {
var a = "Donors Choose";
return a;
});
/** -----------------------------Queries related to Login Page ----------------------------------------*/
app.get('/logindata', async (request, response) => {
const loginInfo = {
username: 'Group 20',
password: 'MyGroup20'
}
response.json(loginInfo);
});
app.post('/authenticateLogin', async (request, response) => {
requestParams = request.query;
if (requestParams.username === "Group 20" && requestParams.password === "MyGroup20") {
response.json({ loginStatus: "Success" });
}
else {
response.json({ loginStatus: "Failed" });
}
});
/**-------------------------- Queries related to Login Page End Here-------------------------------*/
/**-------------------------Query related to Row Count ----------------------------------------*/
app.get('/getRowCount', async (request, response) => {
var query = "SELECT Q1.donors_count + Q2.projects_count + Q3.resources_count + Q4.schools_count + Q5.teachers_count + Q6.states_count +" +
"Q7.donations_count FROM" +
"(SELECT COUNT(*) AS donors_count FROM donors) Q1," +
"(SELECT COUNT(*) AS projects_count FROM projects) Q2," +
"(SELECT COUNT(*) AS resources_count FROM resources) Q3, " +
"(SELECT COUNT(*) AS schools_count FROM schools) Q4," +
"(SELECT COUNT(*) AS teachers_count FROM teachers) Q5," +
"(SELECT COUNT(*) AS states_count FROM states) Q6," +
"(SELECT COUNT(*) AS donations_count FROM donations) Q7"
const result = await dbpool.initialize(query);
response.json(result);
});
/**----------Query related to Row Count ---------------------------------------------------------*/
//--------------------Project Routes-------------------
app.get('/getExpiredProjects', async (request, response) => {
requestParams = request.query;
var query_chart = "select t1.project_resource_category, count(t1.project_id) as counterr " +
"from hksreeka.projects t1 " +
"where t1.project_current_status = 'Expired' and t1.project_resource_category is not null " +
"group by t1.project_resource_category " +
"order by counterr desc fetch first 10 rows only "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getExpiredProjectsPerState', async (request, response) => {
requestParams = request.query;
var query_chart = "select t2.school_state, count(t1.project_id) / (select count(project_id) " +
"from hksreeka.projects p1 " +
"join hksreeka.schools p2 " +
"on p2.school_id = p1.school_id " +
"where school_state = t2.school_state " +
"group by p2.school_state) as ratio " +
"from hksreeka.projects t1 " +
"join hksreeka.schools t2 " +
"on t2.school_id = t1.school_id " +
"where t1.project_current_status = 'Expired' " +
"group by t2.school_state " +
"order by ratio desc fetch first 10 rows only "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getCorrelationChart', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT * FROM (SELECT Project_Id,CORR(NumOfDays, NumofWords) OVER (ORDER BY Project_Id) AS Cor FROM (SELECT Project_Id, " +
"CASE WHEN Hksreeka.projects.fully_funded_date - Hksreeka.projects.Project_Posted_Date < 0 THEN " +
"Hksreeka.projects.fully_funded_date - to_date(to_char(Hksreeka.projects.Project_Posted_Date, 'mm-dd-yy'), 'dd-mm-yy') " +
"WHEN Hksreeka.projects.fully_funded_date - Hksreeka.projects.Project_Posted_Date >= 0 THEN " +
"Hksreeka.projects.fully_funded_date - Hksreeka.projects.Project_Posted_Date " +
"ELSE -1 END AS NumOfDays, " +
"regexp_count(Hksreeka.projects.project_need_statement, '[^ ]+') AS NumofWords " +
"FROM Hksreeka.projects " +
"WHERE Hksreeka.projects.fully_funded_date IS NOT NULL AND Hksreeka.projects.Project_Posted_Date IS NOT NULL) " +
"ORDER BY Project_Id) " +
"WHERE ROWNUM<= 5000 AND Cor IS NOT NULL "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getDonationDistribution', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT to_char(donation_recieved_date, 'Month') AS Month_Name,round(SUM(donation_amount),0) AS Total " +
"FROM Hksreeka.Donations " +
"GROUP BY to_char(donation_recieved_date, 'Month') "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
//-----------------------------End of Project Routes----------------------------------------------------
/***---------------------Queries related to Donors ----------------------------------------------- */
app.get('/getPointsOfDonors', async (request, response) => {
requestParams = request.query;
var query_table = "SELECT JSON_OBJECT('Donor' IS Donor_ID, 'Level' IS Donor_Level) FROM (SELECT * FROM (SELECT hksreeka.donors.donor_id AS Donor_ID, " +
"CASE WHEN hksreeka.donations.donation_amount > (1.2 * Q1.avg) THEN 'Diamond' " +
"WHEN hksreeka.donations.donation_amount BETWEEN (0.8 * Q1.avg) AND (1.2 * Q1.avg) THEN 'Gold' " +
"WHEN hksreeka.donations.donation_amount < (0.8 * Q1.avg) THEN 'Silver' " +
"ELSE 'Unknown' END AS Donor_Level " +
"FROM hksreeka.donors,hksreeka.donations, " +
"(SELECT AVG(hksreeka.donations.donation_amount) as avg FROM hksreeka.donors,hksreeka.donations " +
"WHERE hksreeka.donors.donor_id=hksreeka.donations.donor_id) Q1) " +
"WHERE Donor_Level='Diamond' AND ROWNUM<=5 " +
"UNION ALL " +
"SELECT * FROM (SELECT hksreeka.donors.donor_id, " +
"CASE WHEN hksreeka.donations.donation_amount > (1.2 * Q1.avg) THEN 'Diamond' " +
"WHEN hksreeka.donations.donation_amount BETWEEN (0.8 * Q1.avg) AND (1.2 * Q1.avg) THEN 'Gold' " +
"WHEN hksreeka.donations.donation_amount < (0.8 * Q1.avg) THEN 'Silver' " +
"ELSE 'Unknown' END AS Donor_Level " +
"FROM hksreeka.donors,hksreeka.donations, " +
"(SELECT AVG(hksreeka.donations.donation_amount) as avg FROM hksreeka.donors,hksreeka.donations " +
"WHERE hksreeka.donors.donor_id=hksreeka.donations.donor_id) Q1) " +
"WHERE Donor_Level='Gold' AND ROWNUM<=5 " +
"UNION ALL " +
"SELECT * FROM (SELECT hksreeka.donors.donor_id, " +
"CASE WHEN hksreeka.donations.donation_amount > (1.2 * Q1.avg) THEN 'Diamond' " +
"WHEN hksreeka.donations.donation_amount BETWEEN (0.8 * Q1.avg) AND (1.2 * Q1.avg) THEN 'Gold' " +
"WHEN hksreeka.donations.donation_amount < (0.8 * Q1.avg) THEN 'Silver' " +
"ELSE 'Unknown' END AS Donor_Level " +
"FROM hksreeka.donors,hksreeka.donations, " +
"(SELECT AVG(hksreeka.donations.donation_amount) as avg FROM hksreeka.donors,hksreeka.donations " +
"WHERE hksreeka.donors.donor_id=hksreeka.donations.donor_id) Q1) " +
"WHERE Donor_Level='Silver' AND ROWNUM<=5) "
//var query = requestParams.type === 'table' ? query_table : query_chart;
const result = await dbpool.initialize(query_table);
response.json(result);
});
app.get('/getNumOfProjects', async (request, response) => {
requestParams = request.query;
var query_times = "SELECT CEIL((((SUM(state.State_Population) * 7.25) - " +
"SUM(Proj.Project_Cost)) / AVG(Project_Cost)) / COUNT(Proj.Project_ID)/1000) * 1000 " +
"FROM HKSREEKA.projects Proj,Hksreeka.Schools School,Hksreeka.states state " +
"WHERE Proj.School_ID = School.School_ID AND School.School_State = State.State_Name "
//var query = requestParams.type === 'table' ? query_table : query_chart;
const result = await dbpool.initialize(query_times);
response.json(result);
});
app.get('/getStateWise', async (request, response) => {
requestParams = request.query;
var query_times = "SELECT JSON_OBJECT('State' IS STATE_FOR_SAME, 'TotalAmountForSame' IS TOTAL_AMT_SAME, 'TotalAmountForDifferent' IS TOTAL_AMT_DIFF) " +
"FROM (SELECT Donor_state AS State_for_same,SUM(Donation_Amount) as TOTAL_AMT_SAME " +
"FROM (Select Donor_state, Donation_Amount,school_state " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations NATURAL JOIN HKSREEKA.projects NATURAL JOIN HKSREEKA.schools " +
"WHERE Donor_state=school_state AND Donor_state IN (SELECT Donor_state AS top_10_donors_state " +
"FROM(SELECT Donor_state ,SUM(Donation_Amount) AS total_amt " +
"FROM (SELECT Donor_state, Donation_Amount " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations) " +
"GROUP BY Donor_state " +
"ORDER BY total_amt DESC) " +
"WHERE ROWNUM<=10)) " +
"GROUP BY Donor_state " +
"ORDER BY TOTAL_AMT_SAME DESC) Q1, " +
"(SELECT Donor_state AS State_for_diff,SUM(Donation_Amount) as TOTAL_AMT_DIFF " +
"FROM (Select Donor_state, Donation_Amount,school_state " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations NATURAL JOIN HKSREEKA.projects NATURAL JOIN HKSREEKA.schools " +
"WHERE Donor_state!=school_state AND Donor_state IN (SELECT Donor_state AS top_10_donors_state " +
"FROM(SELECT Donor_state ,SUM(Donation_Amount) AS total_amt " +
"FROM (SELECT Donor_state, Donation_Amount " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations) " +
"GROUP BY Donor_state " +
"ORDER BY total_amt DESC) " +
"WHERE ROWNUM<=10)) " +
"GROUP BY Donor_state " +
"ORDER BY TOTAL_AMT_DIFF DESC) Q2 " +
"WHERE Q1.STATE_FOR_SAME = Q2.STATE_FOR_DIFF "
//var query = requestParams.type === 'table' ? query_table : query_chart;
const result = await dbpool.initialize(query_times);
response.json(result);
});
/***---------------------Queries related to Donors end here ----------------------------------------------- */
/**------------------------------------- Queries related to Donations -------------------------------*/
app.get('/getTop10StatesByDonor', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT Donor_state AS top_10_donors_state,total_num " +
"FROM(SELECT Donor_state ,COUNT(*) AS total_num " +
"FROM (SELECT Donor_state, Donation_Amount " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations " +
"WHERE Donor_state <> 'other') " +
"GROUP BY Donor_state " +
"ORDER BY total_num DESC) " +
"WHERE ROWNUM<=10 "
var query_table = "SELECT JSON_OBJECT ('Donor' IS donor_id, 'DonorCity' IS donor_city, 'DonorState' IS donor_state," +
"'DonorIsTeacher' IS donor_is_teacher," +
"'Zip' IS donor_zip) FROM Donors " +
"WHERE Donor_is_Teacher='Yes' AND ROWNUM <=10 "
var query = requestParams.type === 'table' ? query_table : query_chart;
const result = await dbpool.initialize(query);
response.json(result);
});
app.get('/getStatesHighestDonations', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT JSON_OBJECT ('State' IS Donor_state, 'Latitude' IS Latitude, 'Longitude' IS Longitude ) " +
"FROM(SELECT * FROM (SELECT Donor_state ,SUM(Donation_Amount) as don_amt " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations " +
"GROUP BY Donor_state " +
"ORDER BY SUM(Donation_Amount) DESC), Hksreeka.States_Location " +
"WHERE Donor_state=States_Location.State_Name AND ROWNUM<=10) "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getStatesHighestDonationsAsTable', async (request, response) => {
requestParams = request.query;
var query_table = "SELECT JSON_OBJECT ('State' IS Donor_state,'Amount' IS don_amt) " +
"FROM(SELECT * FROM (SELECT Donor_state ,SUM(Donation_Amount) as don_amt " +
"FROM HKSREEKA.donors NATURAL JOIN HKSREEKA.donations " +
"GROUP BY Donor_state " +
"ORDER BY SUM(Donation_Amount) DESC), Hksreeka.States_Location " +
"WHERE Donor_state=States_Location.State_Name AND ROWNUM<=10)"
const result = await dbpool.initialize(query_table);
response.json(result);
});
app.get('/getFreeLunchPercentage', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT m1,PER_FOR_0_TO_25,PER_FOR_25_TO_50,PER_FOR_50_TO_75,PER_FOR_75_TO_100 " +
"FROM (select Month_name as m1,COUNT(*) as PER_FOR_0_TO_25 " +
"from(select school_freelunchpercentage AS flp,school_name,to_char(donation_recieved_date, 'Month') AS Month_name " +
"FROM hksreeka.schools natural join HKSREEKA.projects natural join HKSREEKA.donations " +
"Where school_freelunchpercentage BETWEEN 0 AND 25) " +
"GROUP BY Month_name), " +
"(select Month_name as m2,COUNT(*) as PER_FOR_25_TO_50 " +
"from(select school_freelunchpercentage AS flp,school_name,to_char(donation_recieved_date, 'Month') AS Month_name " +
"FROM hksreeka.schools natural join HKSREEKA.projects natural join HKSREEKA.donations " +
"Where school_freelunchpercentage BETWEEN 25 AND 50) " +
"GROUP BY Month_name), " +
"(select Month_name as m3,COUNT(*) as PER_FOR_50_TO_75 " +
"from(select school_freelunchpercentage AS flp,school_name,to_char(donation_recieved_date, 'Month') AS Month_name " +
"FROM hksreeka.schools natural join HKSREEKA.projects natural join HKSREEKA.donations " +
"Where school_freelunchpercentage BETWEEN 50 AND 75) " +
"GROUP BY Month_name), " +
"(select Month_name as m4,COUNT(*) as PER_FOR_75_TO_100 " +
"from(select school_freelunchpercentage AS flp,school_name,to_char(donation_recieved_date, 'Month') AS Month_name " +
"FROM hksreeka.schools natural join HKSREEKA.projects natural join HKSREEKA.donations " +
"Where school_freelunchpercentage BETWEEN 75 AND 100) " +
"GROUP BY Month_name) " +
"WHERE m1=m2 AND m2=m3 AND m3=m4 "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
/** ----------------------------Queries related to Donations end here--------------------------------------- */
/*** -------------------------------------Queries related to Resources-------------------------------------------- */
app.get('/getVendorDistributionResources', async (request, response) => {
requestParams = request.query;
var query_chart = "select * from(select resource_vendor_name, COUNT(*) as ven_count " +
"from HKSREEKA.projects natural join HKSREEKA.resources " +
"WHERE resource_vendor_name IN (Select distinct(resource_vendor_name) from hksreeka.resources) " +
"group by resource_vendor_name " +
"ORDER BY ven_count DESC) " +
"WHERE ROWNUM<=10"
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getTop5ResourceNames', async (request, response) => {
requestParams = request.query;
var query_chart = "select JSON_OBJECT('Technology' IS top_5_tech, 'Books' IS top_5_books,'Supplies' IS top_5_supplies) " +
"FROM (select top_5_tech,ROWNUM as r_tech " +
"FROM(select DISTINCT(res) as top_5_tech FROM(select REGEXP_REPLACE(SUBSTR(resource_item_name, 1,instr(resource_item_name,' ',1,2)), '[^a-z]+')as res " +
"FROM(select resource_item_name " +
"FROM (select (resource_vendor_name),project_resource_category,resource_item_name " +
"FROM HKSREEKA.projects natural join HKSREEKA.resources " +
"where project_resource_category='Technology') " +
"group by resource_item_name " +
"order by COUNT(*) DESC)) " +
"WHERE ROWNUM<=12)), " +
"(select resource_item_name as top_5_books, ROWNUM as r_books " +
"FROM(select resource_item_name " +
"FROM (select resource_vendor_name,project_resource_category,resource_item_name " +
"FROM HKSREEKA.projects natural join HKSREEKA.resources " +
"where project_resource_category='Books') " +
"group by resource_item_name " +
"order by COUNT(*) DESC) " +
"WHERE ROWNUM<=5), " +
"(select REGEXP_REPLACE(resource_item_name, '[^a-zA-Z]+_') as top_5_supplies,ROWNUM as r_supplies " +
"FROM(select ROWNUM as r, resource_item_name " +
"FROM(select resource_item_name " +
"FROM (select resource_vendor_name,project_resource_category,resource_item_name " +
"FROM HKSREEKA.projects natural join HKSREEKA.resources " +
"where project_resource_category='Supplies') " +
"group by resource_item_name " +
"order by COUNT(*) DESC)) " +
"WHERE r>2 AND r<8) " +
"WHERE r_tech=r_books AND r_books=r_supplies"
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getTopTypeResources', async (request, response) => {
requestParams = request.query;
var query_chart = "select project_resource_category, COUNT(*) as res_req " +
"from HKSREEKA.projects natural join HKSREEKA.resources " +
"WHERE project_resource_category In (Select distinct(project_resource_category) from hksreeka.projects) " +
"group by project_resource_category"
// var query = requestParams.type === 'table' ? query_table : query_chart;
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getTopPriceResources', async (request, response) => {
requestParams = request.query;
var query_chart = "select range_bet_0_to_50,range_bet_50_to_100,range_bet_100_to_500,range_bet_500_to_1000,range_bet_1000_to_8000,range_bet_8000_to_15000 " +
"FROM(select COUNT(*) as range_bet_0_to_50 " +
"FROM(select DISTINCT(resource_unit_price) " +
"from hksreeka.resources " +
"WHERE resource_unit_price BETWEEN 0 AND 50)), " +
"(select COUNT(*) range_bet_50_to_100 " +
"FROM(select DISTINCT(resource_unit_price) " +
"from hksreeka.resources " +
"WHERE resource_unit_price BETWEEN 50 AND 100)), " +
"(select COUNT(*) range_bet_100_to_500 " +
"FROM(select DISTINCT(resource_unit_price) " +
"from hksreeka.resources " +
"WHERE resource_unit_price BETWEEN 100 AND 500)), " +
"(select COUNT(*) range_bet_500_to_1000 " +
"FROM(select DISTINCT(resource_unit_price) " +
"from hksreeka.resources " +
"WHERE resource_unit_price BETWEEN 500 AND 1000)), " +
"(select COUNT(*) range_bet_1000_to_8000 " +
"FROM(select DISTINCT(resource_unit_price) " +
"from hksreeka.resources " +
"WHERE resource_unit_price BETWEEN 1000 AND 8000)), " +
"(select COUNT(*) range_bet_8000_to_15000 " +
"FROM(select DISTINCT(resource_unit_price) " +
"from hksreeka.resources " +
"WHERE resource_unit_price BETWEEN 8000 AND 15000))"
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getTop10SuppliesResources', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT Q1.top_10_states_for_supplies,Q2.num_of_rural_schools,Q3.num_of_suburban_schools,Q4.num_of_urban_schools FROM " +
"(SELECT school_state AS top_10_states_for_supplies " +
"FROM(SELECT school_state " +
"FROM(SELECT school_state,COUNT(*) as num_of_resources_in_states_for_Supplies " +
"FROM(Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE project_resource_category='Supplies') " +
"GROUP BY school_state) " +
"ORDER BY num_of_resources_in_states_for_Supplies DESC) " +
"WHERE ROWNUM<=10) Q1, " +
"(Select school_state,COUNT(*) AS num_of_rural_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='rural' AND project_resource_category='Supplies') " +
"GROUP BY school_state) Q2, " +
"(Select school_state,COUNT(*) AS num_of_suburban_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='suburban' AND project_resource_category='Supplies') " +
"GROUP BY school_state) Q3, " +
"(Select school_state,COUNT(*) AS num_of_urban_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='urban' AND project_resource_category='Supplies') " +
"GROUP BY school_state) Q4 " +
"WHERE Q1.top_10_states_for_supplies=Q2.school_state AND Q2.school_state=Q3.school_state AND Q3.school_state=Q4.school_state"
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getTop10BookResources', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT Q1.top_10_states_for_Books,Q2.num_of_rural_schools,Q3.num_of_suburban_schools,Q4.num_of_urban_schools FROM " +
"(SELECT school_state AS top_10_states_for_Books " +
"FROM(SELECT school_state " +
"FROM(SELECT school_state,COUNT(*) as num_of_resources_in_states_for_Books " +
"FROM(Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE project_resource_category='Books') " +
"GROUP BY school_state) " +
"ORDER BY num_of_resources_in_states_for_Books DESC) " +
"WHERE ROWNUM<=10) Q1, " +
"(Select school_state,COUNT(*) AS num_of_rural_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='rural' AND project_resource_category='Books') " +
"GROUP BY school_state) Q2, " +
"(Select school_state,COUNT(*) AS num_of_suburban_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='suburban' AND project_resource_category='Books') " +
"GROUP BY school_state) Q3, " +
"(Select school_state,COUNT(*) AS num_of_urban_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='urban' AND project_resource_category='Books') " +
"GROUP BY school_state) Q4 " +
"WHERE Q1.top_10_states_for_Books=Q2.school_state AND Q2.school_state=Q3.school_state AND Q3.school_state=Q4.school_state"
const result = await dbpool.initialize(query_chart);
response.json(result);
});
app.get('/getTop10TechResources', async (request, response) => {
requestParams = request.query;
var query_chart = "SELECT Q1.top_10_states_for_tech ,Q2.num_of_rural_schools ,Q3.num_of_suburban_schools ,Q4.num_of_urban_schools FROM " +
"(SELECT school_state AS top_10_states_for_tech " +
"FROM(SELECT school_state " +
"FROM(SELECT school_state,COUNT(*) as num_of_resources_in_states_for_technology " +
"FROM(Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE project_resource_category='Technology') " +
"GROUP BY school_state) " +
"ORDER BY num_of_resources_in_states_for_technology DESC) " +
"WHERE ROWNUM<=11) Q1, " +
"(Select school_state,COUNT(*) AS num_of_rural_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='rural' AND project_resource_category='Technology') " +
"GROUP BY school_state) Q2, " +
"(Select school_state,COUNT(*) AS num_of_suburban_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='suburban' AND project_resource_category='Technology') " +
"GROUP BY school_state) Q3, " +
"(Select school_state,COUNT(*) AS num_of_urban_schools " +
"FROM (Select DISTINCT(hksreeka.schools.school_name),hksreeka.projects.project_resource_category,metro_type,school_city,school_state " +
"FROM HKSREEKA.resources Natural join HKSREEKA.projects Natural join HKSREEKA.schools " +
"WHERE metro_type='urban' AND project_resource_category='Technology') " +
"GROUP BY school_state) Q4 " +
"WHERE Q1.top_10_states_for_tech=Q2.school_state AND Q2.school_state=Q3.school_state AND Q3.school_state=Q4.school_state "
const result = await dbpool.initialize(query_chart);
response.json(result);
});
/*** -------------------------------------Queries related to Resources End Here-------------------------------------------- */
app.listen(3000);
console.log("Server running on port 3000");