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solutions.sql

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+-- Query 1: Get the id values of the first 5 clients from district_id with a value equals to 1
+SELECT client_id
+FROM client
+WHERE district_id = 1
+LIMIT 5;
+
+-- Query 2: Get the id value of the last client where the district_id equals to 72
+SELECT client_id
+FROM client
+WHERE district_id = 72
+ORDER BY client_id DESC
+LIMIT 1;
+
+-- Query 3: Get the 3 lowest amounts in the loan table
+SELECT amount
+FROM loan
+ORDER BY amount ASC
+LIMIT 3;
+
+-- Query 4: Possible values for status, ordered alphabetically in ascending order in the loan table
+SELECT DISTINCT status
+FROM loan
+ORDER BY status ASC;
+
+-- Query 5: Loan_id of the highest payment received in the loan table
+SELECT loan_id
+FROM loan
+ORDER BY payments DESC
+LIMIT 1;
+
+-- Query 6: Loan amount of the lowest 5 account_ids in the loan table
+SELECT account_id, amount
+FROM loan
+ORDER BY account_id ASC
+LIMIT 5;
+
+-- Query 7: Account_ids with the lowest loan amount that have a loan duration of 60
+SELECT account_id
+FROM loan
+WHERE duration = 60
+ORDER BY amount ASC
+LIMIT 5;
+
+-- Query 8: Unique values of k_symbol in the order table
+SELECT DISTINCT k_symbol
+FROM `order`
+ORDER BY k_symbol ASC;
+
+-- Query 9: Order_ids of the client with the account_id 34 in the order table
+SELECT order_id
+FROM `order`
+WHERE account_id = 34;
+
+-- Query 10: Account_ids responsible for orders between order_id 29540 and 29560 (inclusive)
+SELECT DISTINCT account_id
+FROM `order`
+WHERE order_id BETWEEN 29540 AND 29560;
+
+-- Query 11: Individual amounts sent to account_to id 30067122 in the order table
+SELECT amount
+FROM `order`
+WHERE account_to = 30067122;
+
+-- Query 12: Trans_id, date, type, and amount of the 10 first transactions from account_id 793, newest to oldest
+SELECT trans_id, date, type, amount
+FROM trans
+WHERE account_id = 793
+ORDER BY date DESC
+LIMIT 10;
+
+-- Query 13: Number of clients from each district_id lower than 10, sorted by district_id
+SELECT district_id, COUNT(*) AS client_count
+FROM client
+WHERE district_id < 10
+GROUP BY district_id
+ORDER BY district_id ASC;
+
+-- Query 14: Number of cards for each type, ranked by frequency
+SELECT type, COUNT(*) AS card_count
+FROM card
+GROUP BY type
+ORDER BY card_count DESC;
+
+-- Query 15: Top 10 account_ids based on the sum of their loan amounts
+SELECT account_id, SUM(amount) AS total_amount
+FROM loan
+GROUP BY account_id
+ORDER BY total_amount DESC
+LIMIT 10;
+
+-- Query 16: Number of loans issued for each day before 930907, ordered by date descending
+SELECT date, COUNT(*) AS loan_count
+FROM loan
+WHERE date < 930907
+GROUP BY date
+ORDER BY date DESC;
+
+-- Query 17: Number of loans in December 1997 for each duration, ordered by date and duration
+SELECT date, duration, COUNT(*) AS loan_count
+FROM loan
+WHERE date BETWEEN 971201 AND 971231
+GROUP BY date, duration
+ORDER BY date ASC, duration ASC;
+
+-- Query 18: Sum of transaction amounts for account_id 396 by type, sorted alphabetically
+SELECT account_id, type, SUM(amount) AS total_amount
+FROM trans
+WHERE account_id = 396
+GROUP BY type
+ORDER BY type ASC;