https://github.com/himusharier/isdb-journal-publication-database-oracle-postgres
This project contains complete database of a journal publication company and a collection of SQL queries. The queries cover various operations from basic data retrieval to complex data analysis across multiple related tables.
https://github.com/himusharier/isdb-journal-publication-database-oracle-postgres
database isdb oracle plsql postgres round62 sql sql-query
Last synced: 2 months ago
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This project contains complete database of a journal publication company and a collection of SQL queries. The queries cover various operations from basic data retrieval to complex data analysis across multiple related tables.
- Host: GitHub
- URL: https://github.com/himusharier/isdb-journal-publication-database-oracle-postgres
- Owner: himusharier
- Created: 2024-12-05T09:40:38.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2025-03-17T22:51:45.000Z (3 months ago)
- Last Synced: 2025-03-17T23:36:00.674Z (3 months ago)
- Topics: database, isdb, oracle, plsql, postgres, round62, sql, sql-query
- Homepage:
- Size: 450 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## ER Diagram for Journal Database
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# Journal Database SQL Queries
## Basic Queries
### 1. Retrieve Journal Names and Publication Types
```sql
SELECT journal_name, publication_type FROM journals;
```
### 2. Find Researchers
```sql
SELECT first_name, last_name, profession
FROM users
WHERE profession = 'Botanist';
```
### 3. Journals with Impact Factor > 2
```sql
SELECT journal_name, impact_factor
FROM journals
WHERE impact_factor > 2;
```
### 4. Articles by Volume/Issue
```sql
SELECT a.article_title, j.journal_name
FROM articles a
JOIN journals j ON a.journal_id = j.journal_id
WHERE a.vol_issue = 'Vol5Issue01';
```
### 5. Journals and Publication Frequency
```sql
SELECT journal_name, publication_frequency
FROM journals;
```
### 6. Users with Ecology in Profession
```sql
SELECT first_name, last_name, profession
FROM users
WHERE profession LIKE '%Plant%';
```
## Aggregation & Filtering
### 7. Total Crop Science Journal
```sql
SELECT COUNT(*) AS total_articles
FROM articles a
JOIN journals j ON a.journal_id = j.journal_id
WHERE j.journal_name = 'Crop Science Journal';
```
### 8. Journals with Acceptance Rate > 40%
```sql
SELECT journal_name, acceptance_rate
FROM journals
WHERE acceptance_rate > 40;
```
### 9. Announcements for Journal of Plant Pathology
```sql
SELECT topic, announcement, announce_date
FROM announcements a
JOIN journals j ON a.journal_id = j.journal_id
WHERE j.journal_name = 'Journal of Plant Pathology';
```
### 10. Average Impact Factor of Journals
```sql
SELECT AVG(impact_factor) AS avg_impact_factor
FROM journals j
WHERE j.journal_id IN (
SELECT journal_id
FROM issues i
WHERE i.journal_id = j.journal_id
);
```
## Complex Joins
### 11. Editorial Members of Journal of Plant Pathology
```sql
SELECT u.first_name, u.last_name, e.category
FROM editorial e
JOIN users u ON e.user_id = u.user_id
JOIN journals j ON e.journal_id = j.journal_id
WHERE j.journal_name = 'Journal of Plant Pathology';
```
### 12. Articles by Specific Author
```sql
SELECT a.article_title, j.journal_name, a.vol_issue, a.published_date
FROM articles a
JOIN journals j ON a.journal_id = j.journal_id
WHERE a.author = 3;
```
### 13. Journals with Articles and Abstracts
```sql
SELECT j.journal_name, a.article_title, a.abstract
FROM articles a
JOIN journals j ON a.journal_id = j.journal_id;
```
### 14. Issues of Journal of Agricultural Biotechnology
```sql
SELECT vol_issue, publish_date
FROM issues
JOIN journals j ON issues.journal_id = j.journal_id
WHERE j.journal_name = 'Journal of Agricultural Biotechnology';
```
## Subqueries & Advanced Filtering
### 15. Users Authoring in High Impact Journals
```sql
SELECT DISTINCT u.first_name, u.last_name
FROM users u
WHERE u.user_id IN (
SELECT a.author
FROM articles a
JOIN journals j ON a.journal_id = j.journal_id
WHERE j.impact_factor > 3
);
```
### 16. Most Recent Article in Specific Volume/Issue
```sql
SELECT a.article_title, u.first_name, u.last_name, j.journal_name
FROM articles a
JOIN users u ON a.author = u.user_id
JOIN journals j ON a.journal_id = j.journal_id
WHERE a.vol_issue = 'Vol2Issue01'
ORDER BY a.published_date DESC
FETCH FIRST 1 ROWS ONLY;
```
### 17. Journals Above Average Acceptance Rate
```sql
SELECT journal_name, acceptance_rate
FROM journals
WHERE acceptance_rate > (SELECT AVG(acceptance_rate) FROM journals);
```
### 18. Editorial Members in High Impact Journals
```sql
SELECT DISTINCT u.first_name, u.last_name
FROM editorial e
JOIN users u ON e.user_id = u.user_id
JOIN journals j ON e.journal_id = j.journal_id
WHERE j.impact_factor > 2;
```
### 19. Most Recent Announcement per Journal
```sql
SELECT a.journal_id, a.topic, a.announce_date
FROM announcements a
WHERE a.announce_date IN (
SELECT MAX(announce_date)
FROM announcements
GROUP BY journal_id
);
```
### 20. Articles Without Corresponding Author
```sql
SELECT article_title, vol_issue, journal_id
FROM articles
WHERE crosponding_author IS NULL;
```
## Data Integrity & Constraints
### 21. Insert New Journal
```sql
INSERT INTO journals (
journal_name, eissn_id, publication_type,
impact_factor, publication_frequency, acceptance_rate
)
VALUES (
'Journal of Advanced Research', '1234-5678', 'Academic',
3.5, 'Monthly', 30
);
```
### 22. Update Journal Acceptance Rate
```sql
UPDATE journals
SET acceptance_rate = 45
WHERE journal_name = 'Plant Biotechnology Review';
```
### 23. Delete User
```sql
DELETE FROM users WHERE user_id = 4;
```
## Advanced Data Operations
### 24. Journals with No Published Articles
```sql
SELECT journal_name
FROM journals j
WHERE j.journal_id NOT IN (
SELECT DISTINCT journal_id FROM articles
);
```
### 25. Journals with More Than 3 Announcements
```sql
SELECT j.journal_name, COUNT(a.announcement_id) AS total_announcements
FROM journals j
LEFT JOIN announcements a ON j.journal_id = a.journal_id
GROUP BY j.journal_name
HAVING COUNT(a.announcement_id) > 3;
```
# SQL Question Bank for Database Schema
## 1. Table Creation Questions
### 1.1. How would you create a table `journals` with columns: `journal_id`, `journal_name`, `eissn_id`, `publication_type`, `impact_factor`, `publication_frequency`, and `acceptance_rate`?
### 1.2. How would you create a table `issues` with columns: `journal_id`, `vol_issue`, and `publish_date`, and create a foreign key relationship with the `journals` table?
### 1.3. How would you create a table `announcements` with columns: `journal_id`, `topic`, `announcement`, and `announce_date`, and create a foreign key relationship with the `journals` table?
### 1.4. How would you create a table `users` with columns: `user_id`, `first_name`, `last_name`, `gender`, `date_of_birth`, `email`, `phone`, `profession`, `institute`, `country`, and `address`? Ensure a gender constraint.
### 1.5. How would you create a table `editorial` with columns: `journal_id`, `user_id`, and `category`, and create foreign key relationships with the `journals` and `users` tables?
### 1.6. How would you create a table `articles` with columns: `journal_id`, `article_id`, `vol_issue`, `article_title`, `abstract`, `article_type`, `keywords`, `doi_id`, `author`, `crosponding_author`, and `published_date`, and create foreign key relationships with the `issues` and `users` tables?
## 2. Data Insertion Questions
### 2.1. How would you insert a record into the `journals` table with values: `journal_name`, `eissn_id`, `publication_type`, `impact_factor`, `publication_frequency`, and `acceptance_rate`?
### 2.2. How would you insert a record into the `issues` table with values: `journal_id`, `vol_issue`, and `publish_date`?
### 2.3. How would you insert a record into the `announcements` table with values: `journal_id`, `topic`, `announcement`, and `announce_date`?
### 2.4. How would you insert a record into the `users` table with values: `first_name`, `last_name`, `gender`, `date_of_birth`, `email`, `phone`, `profession`, `institute`, `country`, and `address`?
### 2.5. How would you insert a record into the `editorial` table with values: `journal_id`, `user_id`, and `category`?
### 2.6. How would you insert a record into the `articles` table with values: `journal_id`, `vol_issue`, `article_title`, `abstract`, `article_type`, `keywords`, `doi_id`, `author`, `crosponding_author`, and `published_date`?
## 3. Query Questions
### 3.1. How would you fetch all articles from the `articles` table where the `article_type` is `Research`?
### 3.2. How would you fetch the journal name and the acceptance rate of journals with `impact_factor` greater than 3 from the `journals` table?
### 3.3. How would you find the number of articles published in each volume and issue from the `articles` table?
### 3.4. How would you fetch all the users who are working as `Research Scientists`?
### 3.5. How would you fetch all announcements that were made after `2024-01-01` from the `announcements` table?
### 3.6. How would you list the details of articles that were published in a specific volume (e.g., 'Vol 1 Issue 01') of a journal?
### 3.7. How would you fetch the details of articles and their corresponding authors from the `articles` table, joining the `users` table to get author names?
### 3.8. How would you fetch all the journals with `publication_type` as `Research` and `acceptance_rate` as `high`?
### 3.9. How would you get the total number of issues published per journal from the `issues` table?
### 3.10. How would you find the average impact factor of all journals in the `journals` table?
## 4. Alter Table and Constraints Questions
### 4.1. How would you add a new column `language` to the `journals` table?
### 4.2. How would you modify the `users` table to allow a `NULL` value for the `phone` column?
### 4.3. How would you add a constraint to the `articles` table to ensure that the `published_date` is not in the future?
### 4.4. How would you create a unique constraint on the `email` column in the `users` table?
### 4.5. How would you remove the foreign key constraint `editorial_journal_id_fk_journals` from the `editorial` table?
### 4.6. How would you rename the `articles` table to `journal_articles`?
## 5. Data Deletion and Update Questions
### 5.1. How would you delete all articles where the `article_type` is `Review` from the `articles` table?
### 5.2. How would you update the `impact_factor` of a journal in the `journals` table where `journal_id` is 3?
### 5.3. How would you delete a specific user from the `users` table by their `user_id`?
### 5.4. How would you update the `address` of a user in the `users` table based on their `user_id`?
### 5.5. How would you delete all records from the `announcements` table that are older than `2024-01-01`?
### 5.6. How would you delete all issues from the `issues` table related to a specific journal (`journal_id = 2`)?
### 5.7. How would you delete a specific editorial entry from the `editorial` table based on `journal_id` and `user_id`?
## 6. Join and Subquery Questions
### 6.1. How would you retrieve a list of all articles along with their respective journal names using a JOIN between the `articles` and `journals` tables?
### 6.2. How would you find the users who are part of the editorial board of a particular journal, say `journal_id = 3`?
### 6.3. How would you retrieve the titles of articles that were published after `2024-01-01` and their corresponding journal names?
### 6.4. How would you retrieve the authors who have more than one article published, using a subquery in the `articles` table?
### 6.5. How would you fetch the list of articles published in a journal whose name starts with "Botanical" from the `journals` and `articles` tables?
### 6.6. How would you retrieve the details of all announcements related to a specific journal by joining the `announcements` and `journals` tables?
### 6.7. How would you retrieve the number of articles published in each journal, including the journal name, by using a GROUP BY clause in the `articles` table?
### 6.8. How would you fetch the names of the users who are editors for a journal with a specific `journal_id`?
### 6.9. How would you list the journals that have published more than 10 issues?
### 6.10. How would you fetch the latest articles for each journal based on the `published_date`?