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solutions.sql

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+-- 1
+SELECT client_id,district_id
+FROM client
+WHERE client_id AND district_id == 1 
+LIMIT 5 ;
+
+
+
+
+
+
+-- 2
+SELECT client_id,district_id
+FROM client
+WHERE client_id AND district_id == 72
+order by client_id DESC
+LIMIT 1;
+
+
+-- 3
+SELECT amount
+FROM loan
+
+order by amount ASC
+LIMIT 3;
+
+-- 4
+SELECT DISTINCT status
+FROM loan
+
+order by status ASC 
+
+
+-- 5
+SELECT loan_id, amount
+FROM loan
+
+order by amount DESC 
+
+LIMIT 1;
+
+
+-- 6
+SELECT account_id, amount 
+FROM loan
+
+order by account_id asc 
+
+LIMIT 5;
+
+
+-- 7
+SELECT account_id
+FROM loan
+WHERE duration == 60
+order by amount asc 
+
+LIMIT 5;
+
+-- 8
+SELECT DISTINCT k_symbol
+FROM `order`
+
+order by k_symbol ASC
+LIMIT 5;
+
+-- 9
+SELECT order_id
+FROM `order`
+WHERE account_id == 34
+LIMIT 5;
+
+-- 10
+SELECT DISTINCT account_id  
+FROM `order`  
+WHERE order_id BETWEEN 29540 AND 29560;
+
+-- 11
+SELECT amount  
+FROM `order`  
+WHERE account_to = 30067122;  -- Filter for the specified recipient account
+
+-- 12
+SELECT trans_id, date, type, amount
+FROM trans
+WHERE account_id = 793
+ORDER BY date DESC
+LIMIT 10;
+
+-- 13
+SELECT district_id, COUNT(client_id) AS num_clients
+FROM client
+WHERE district_id < 10
+GROUP BY district_id
+ORDER BY district_id ASC;
+
+-- 14
+SELECT type, COUNT(*) AS total_cards
+FROM card
+GROUP BY type
+ORDER BY total_cards DESC;
+
+-- 15
+SELECT account_id, SUM(amount) AS total_loan
+FROM loan
+GROUP BY account_id
+ORDER BY total_loan DESC
+LIMIT 10;
+
+-- 16
+SELECT date, COUNT(*) AS num_loans
+FROM loan
+WHERE date < 930907
+GROUP BY date
+ORDER BY date DESC;
+
+-- 17
+SELECT date, duration, COUNT(*) AS num_loans  
+FROM loan  
+WHERE date BETWEEN 971201 AND 971231  -- Only Dec 1997 dates
+GROUP BY date, duration  -- Count per day & loan duration
+ORDER BY date ASC, duration ASC;  -- Sort by date & duration
+
+-- 18
+SELECT account_id, type, SUM(amount) AS total_amount  
+FROM trans  
+WHERE account_id = 396
+GROUP BY type
+ORDER BY type ASC;