{ "format": "dataset-manifest/1", "slug": "bank-sample-database", "version": 1, "seed": "flagship:bank-sample-database:1k", "engine": 2, "engineVersion": "1.0.0", "spec": { "format": "dataset/1", "engine": 2, "slug": "bank-sample-database", "name": "Bank sample database", "tagline": "Customers, accounts and a transaction ledger, cards, ATM and card payments, transfers, loans, mortgages and branches.", "description": "A retail bank with twenty branches over five years, 2021 to 2025. Customers open checking and savings accounts, and every account’s balance is exactly its ledger: deposits and interest in, withdrawals and fees out, summed from the transactions table. Accounts carry cards; ATM withdrawals come in multiples of $20 and card payments go through merchants’ terminals. A transfer, a standing order and an overdraft link never point an account at itself. A loan payment is principal plus interest and comes after the loan starts; a mortgage’s down payment is 5 to 30% of the property value; a credit line’s balance never passes its limit. Every customer has one address and one KYC document, and every transaction comes after its account was opened.", "domain": "banking", "shape": "ledger", "useCases": [ "sql-practice", "bi-dashboards", "test-fixtures" ], "keywords": [ "bank", "accounts", "transactions", "ledger", "sample database" ], "locale": "en_US", "license": "CC0-1.0", "version": 1, "seed": "flagship:bank-sample-database", "tables": { "accounts": { "description": "Rows for the accounts table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "account_number": { "kind": "pattern", "pattern": "##########", "unique": true }, "balance": { "kind": "decimal", "min": 0, "max": 1000000, "scale": 2 }, "branch_id": { "kind": "fk", "ref": "branches.id", "skew": "long-tail" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "long-tail" }, "opened_date": { "kind": "date", "from": "2010-01-01", "to": "2020-12-31" }, "status": { "kind": "enum", "values": [ "open", "frozen", "closed" ], "weights": [ 92, 1, 7 ] }, "type": { "kind": "enum", "values": [ "checking", "savings", "business" ], "weights": [ 60, 32, 8 ] } } }, "addresses": { "description": "Rows for the addresses table.", "rows": 12, "columns": { "id": { "kind": "pk" }, "city": { "kind": "place.city" }, "country": { "kind": "constant", "value": "United States" }, "customer_id": { "kind": "fk", "ref": "customers.id", "unique": true }, "postal_code": { "kind": "place.postcode" }, "state": { "kind": "place.regionCode" }, "street": { "kind": "location.streetAddress" } } }, "atm_machines": { "description": "Rows for the atm_machines table.", "rows": 60, "columns": { "id": { "kind": "pk" }, "branch_id": { "kind": "fk", "ref": "branches.id", "skew": "flat" }, "cash_balance": { "kind": "decimal", "min": 5000, "max": 120000, "scale": 2 }, "location_description": { "kind": "enum", "values": [ "Branch lobby", "Drive-through", "Supermarket", "Train station", "Shopping mall", "Airport" ] }, "status": { "kind": "enum", "values": [ "in_service", "out_of_service" ], "weights": [ 95, 5 ] } } }, "atm_transactions": { "description": "Rows for the atm_transactions table.", "rows": 80, "columns": { "id": { "kind": "pk" }, "amount": { "kind": "int", "min": 0, "max": 480, "distribution": "long-tail" }, "atm_id": { "kind": "fk", "ref": "atm_machines.id", "skew": "long-tail" }, "card_id": { "kind": "fk", "ref": "cards.id", "skew": "long-tail" }, "timestamp": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "waking" }, "transaction_type": { "kind": "enum", "values": [ "withdrawal", "balance_inquiry" ], "weights": [ 85, 15 ] } } }, "audit_logs": { "description": "Rows for the audit_logs table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "action": { "kind": "enum", "values": [ "create", "update", "view", "delete" ], "weights": [ 20, 40, 38, 2 ] }, "employee_id": { "kind": "fk", "ref": "employees.id", "skew": "long-tail" }, "record_id": { "kind": "int", "min": 1, "max": 50000 }, "table_name": { "kind": "enum", "values": [ "accounts", "customers", "loans", "cards", "transfers" ] }, "timestamp": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "business" } } }, "bill_payments": { "description": "Rows for the bill_payments table.", "rows": 30, "columns": { "id": { "kind": "pk" }, "account_id": { "kind": "fk", "ref": "accounts.id", "skew": "long-tail" }, "amount": { "kind": "decimal", "min": 10, "max": 2500, "scale": 2, "distribution": "long-tail" }, "payee_account_number": { "kind": "pattern", "pattern": "########" }, "payee_name": { "kind": "enum", "values": [ "City Water", "Metro Electric", "Gas Company", "Fiber Internet", "Mobile Carrier", "Auto Insurance", "Credit Card Co" ] }, "payment_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" } } }, "branch_addresses": { "description": "Rows for the branch_addresses table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "branch_id": { "kind": "fk", "ref": "branches.id", "unique": true }, "city": { "kind": "place.city" }, "country": { "kind": "constant", "value": "United States" }, "postal_code": { "kind": "place.postcode" }, "state": { "kind": "place.regionCode" }, "street": { "kind": "location.streetAddress" } } }, "branches": { "description": "Rows for the branches table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "email": { "kind": "enum", "values": [ "mainstreet@bank.example.com", "riverside@bank.example.com", "oakpark@bank.example.com", "harbor@bank.example.com", "unionsquare@bank.example.com", "westgate@bank.example.com", "northfield@bank.example.com", "lakeshore@bank.example.com", "midtown@bank.example.com", "elmgrove@bank.example.com", "cedarhills@bank.example.com", "oldtown@bank.example.com", "bayview@bank.example.com", "southpoint@bank.example.com", "mapleridge@bank.example.com", "pinevalley@bank.example.com", "marketsquare@bank.example.com", "eastwood@bank.example.com", "hillcrest@bank.example.com", "airportroad@bank.example.com" ], "unique": true }, "name": { "kind": "enum", "values": [ "Main Street Branch", "Riverside Branch", "Oak Park Branch", "Harbor Branch", "Union Square Branch", "Westgate Branch", "Northfield Branch", "Lakeshore Branch", "Midtown Branch", "Elm Grove Branch", "Cedar Hills Branch", "Old Town Branch", "Bayview Branch", "Southpoint Branch", "Maple Ridge Branch", "Pine Valley Branch", "Market Square Branch", "Eastwood Branch", "Hillcrest Branch", "Airport Road Branch" ], "unique": true }, "phone": { "kind": "phone.number" }, "routing_number": { "kind": "pattern", "pattern": "[0]########", "unique": true } } }, "cards": { "description": "Rows for the cards table.", "rows": 15, "columns": { "id": { "kind": "pk" }, "account_id": { "kind": "fk", "ref": "accounts.id", "unique": true }, "card_number": { "kind": "testCardNumber" }, "cvv": { "kind": "constant", "value": "***" }, "expiration_date": { "kind": "date", "from": "2026-01-31", "to": "2030-12-31" }, "pin_hash": { "kind": "pattern", "pattern": "[$2b$10$]xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" }, "status": { "kind": "enum", "values": [ "active", "blocked", "expired" ], "weights": [ 90, 3, 7 ] }, "type": { "kind": "enum", "values": [ "debit", "credit" ], "weights": [ 75, 25 ] } } }, "credit_lines": { "description": "Rows for the credit_lines table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "balance": { "kind": "decimal", "min": 0, "max": 7900, "scale": 2 }, "credit_limit": { "kind": "enum", "values": [ "1000", "2500", "5000", "10000", "25000" ], "weights": [ 20, 30, 25, 18, 7 ], "type": "numeric(12,2)" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "flat" }, "interest_rate": { "kind": "decimal", "min": 12, "max": 29.99, "scale": 2 }, "status": { "kind": "enum", "values": [ "open", "closed" ], "weights": [ 88, 12 ] } } }, "currency_rates": { "description": "Rows for the currency_rates table.", "rows": 12, "columns": { "id": { "kind": "pk" }, "base_currency": { "kind": "enum", "values": [ "USD", "EUR", "GBP", "TRY" ] }, "exchange_rate": { "kind": "decimal", "min": 0.0001, "max": 100, "scale": 6 }, "last_updated": { "kind": "datetime", "from": "2025-12-31", "to": "2025-12-31" }, "target_currency": { "kind": "enum", "values": [ "USD", "EUR", "GBP", "TRY" ] } } }, "customer_support_tickets": { "description": "Rows for the customer_support_tickets table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "created_date": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "business" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "long-tail" }, "description": { "kind": "enum", "values": [ "Customer called in", "Raised in the app", "Raised at a branch", "Raised by email" ] }, "employee_id": { "kind": "fk", "ref": "employees.id", "skew": "flat" }, "status": { "kind": "enum", "values": [ "resolved", "closed" ], "weights": [ 80, 20 ] }, "subject": { "kind": "enum", "values": [ "Card blocked", "Dispute a charge", "Update address", "Online banking login", "Loan question", "Wire transfer" ] } } }, "customers": { "description": "Rows for the customers table.", "rows": 12, "columns": { "id": { "kind": "pk" }, "date_of_birth": { "kind": "date", "from": "1940-01-01", "to": "2006-12-31" }, "email": { "kind": "internet.email", "from": { "firstName": "first_name", "lastName": "last_name" }, "unique": true }, "first_name": { "kind": "person.firstName" }, "last_name": { "kind": "person.lastName" }, "phone": { "kind": "phone.number" }, "tax_identifier": { "kind": "pattern", "pattern": "[CUS-]########", "unique": true, "description": "Internal customer number." } } }, "departments": { "description": "Rows for the departments table.", "rows": 60, "columns": { "id": { "kind": "pk" }, "branch_id": { "kind": "fk", "ref": "branches.id", "skew": "flat" }, "name": { "kind": "enum", "values": [ "Retail Banking", "Lending", "Operations", "Wealth Management", "Customer Service" ], "weights": [ 30, 20, 25, 10, 15 ] } } }, "direct_deposits": { "description": "Rows for the direct_deposits table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "account_id": { "kind": "fk", "ref": "accounts.id", "skew": "flat" }, "active_status": { "kind": "enum", "values": [ "active", "stopped" ], "weights": [ 85, 15 ] }, "amount": { "kind": "decimal", "min": 800, "max": 12000, "scale": 2, "distribution": "long-tail" }, "employer_name": { "kind": "company.name" }, "frequency": { "kind": "enum", "values": [ "weekly", "biweekly", "monthly" ], "weights": [ 15, 50, 35 ] } } }, "employee_departments": { "description": "Rows for the employee_departments table.", "rows": 300, "columns": { "id": { "kind": "pk" }, "department_id": { "kind": "fk", "ref": "departments.id", "skew": "flat" }, "employee_id": { "kind": "fk", "ref": "employees.id", "unique": true } } }, "employees": { "description": "Rows for the employees table.", "rows": 300, "columns": { "id": { "kind": "pk" }, "branch_id": { "kind": "fk", "ref": "branches.id", "skew": "flat" }, "email": { "kind": "internet.email", "from": { "firstName": "first_name", "lastName": "last_name" }, "unique": true }, "first_name": { "kind": "person.firstName" }, "hire_date": { "kind": "date", "from": "2005-01-01", "to": "2025-06-30", "distribution": "high" }, "last_name": { "kind": "person.lastName" }, "phone": { "kind": "phone.number" } } }, "investment_assets": { "description": "Rows for the investment_assets table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "asset_type": { "kind": "enum", "values": [ "etf", "stock", "bond_fund" ], "weights": [ 60, 25, 15 ] }, "investment_id": { "kind": "fk", "ref": "investments.id", "skew": "flat" }, "purchase_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" }, "purchase_price": { "kind": "decimal", "min": 20, "max": 600, "scale": 2 }, "quantity": { "kind": "decimal", "min": 1, "max": 500, "scale": 4, "distribution": "long-tail" }, "symbol": { "kind": "enum", "values": [ "VTI", "VXUS", "BND", "AAPL", "MSFT", "SPY", "QQQ", "VNQ", "GLD", "TLT" ] } } }, "investments": { "description": "Rows for the investments table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "created_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "flat" }, "portfolio_name": { "kind": "enum", "values": [ "Retirement", "College Fund", "Growth", "Income", "Emergency" ] } } }, "kyc_documents": { "description": "Rows for the kyc_documents table.", "rows": 12, "columns": { "id": { "kind": "pk" }, "customer_id": { "kind": "fk", "ref": "customers.id", "unique": true }, "document_number": { "kind": "pattern", "pattern": "[DOC-]AA#######", "unique": true, "description": "A made-up reference, not a real document number." }, "document_type": { "kind": "enum", "values": [ "passport", "driver_license", "state_id" ], "weights": [ 30, 60, 10 ] }, "expiry_date": { "kind": "date", "from": "2026-01-01", "to": "2035-12-31" }, "verification_status": { "kind": "enum", "values": [ "verified", "rejected" ], "weights": [ 97, 3 ] } } }, "loan_payments": { "description": "Rows for the loan_payments table.", "rows": 50, "columns": { "id": { "kind": "pk" }, "amount": { "kind": "decimal", "min": 0, "max": 12986, "scale": 2 }, "interest_paid": { "kind": "decimal", "min": 5, "max": 1500, "scale": 2, "distribution": "long-tail" }, "loan_id": { "kind": "fk", "ref": "loans.id", "skew": "flat" }, "payment_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" }, "principal_paid": { "kind": "decimal", "min": 0, "max": 11915, "scale": 2 } } }, "loans": { "description": "Rows for the loans table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "amount": { "kind": "decimal", "min": 5000, "max": 600000, "scale": 2, "distribution": "long-tail" }, "branch_id": { "kind": "fk", "ref": "branches.id", "skew": "flat" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "flat" }, "interest_rate": { "kind": "decimal", "min": 3.5, "max": 18, "scale": 2 }, "loan_number": { "kind": "pattern", "pattern": "[LN-]########", "unique": true }, "start_date": { "kind": "date", "from": "2017-01-01", "to": "2020-12-31" }, "status": { "kind": "enum", "values": [ "active", "paid_off", "defaulted" ], "weights": [ 78, 19, 3 ] }, "term_months": { "kind": "enum", "values": [ "12", "36", "60", "180", "360" ], "weights": [ 10, 30, 30, 10, 20 ], "type": "integer" } } }, "merchant_accounts": { "description": "Rows for the merchant_accounts table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "business_name": { "kind": "company.name" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "flat" }, "merchant_category_code": { "kind": "enum", "values": [ "5411", "5812", "5541", "5999", "5732", "7011" ] }, "status": { "kind": "enum", "values": [ "active", "suspended" ], "weights": [ 95, 5 ] } } }, "mortgages": { "description": "Rows for the mortgages table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "down_payment": { "kind": "decimal", "min": 0, "max": 277283, "scale": 2 }, "loan_id": { "kind": "fk", "ref": "loans.id", "unique": true }, "property_address": { "kind": "location.streetAddress" }, "property_value": { "kind": "decimal", "min": 120000, "max": 1500000, "scale": 2, "distribution": "long-tail" } } }, "overdraft_protections": { "description": "Rows for the overdraft_protections table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "account_id": { "kind": "fk", "ref": "accounts.id", "unique": true }, "linked_account_id": { "kind": "fk", "ref": "accounts.id", "skew": "flat" }, "protection_limit": { "kind": "enum", "values": [ "250", "500", "1000", "2500" ], "weights": [ 30, 40, 20, 10 ], "type": "numeric(10,2)" } } }, "pos_terminals": { "description": "Rows for the pos_terminals table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "merchant_account_id": { "kind": "fk", "ref": "merchant_accounts.id", "skew": "flat" }, "serial_number": { "kind": "pattern", "pattern": "[POS-]########", "unique": true }, "status": { "kind": "enum", "values": [ "active", "retired" ], "weights": [ 92, 8 ] } } }, "pos_transactions": { "description": "Rows for the pos_transactions table.", "rows": 120, "columns": { "id": { "kind": "pk" }, "amount": { "kind": "decimal", "min": 1, "max": 900, "scale": 2, "distribution": "long-tail" }, "authorization_code": { "kind": "pattern", "pattern": "AA####" }, "card_id": { "kind": "fk", "ref": "cards.id", "skew": "long-tail" }, "terminal_id": { "kind": "fk", "ref": "pos_terminals.id", "skew": "long-tail" }, "timestamp": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "waking" } } }, "safe_deposit_boxes": { "description": "Rows for the safe_deposit_boxes table.", "rows": 200, "columns": { "id": { "kind": "pk" }, "annual_fee": { "kind": "enum", "values": [ "60", "120", "250" ], "type": "numeric(8,2)" }, "box_number": { "kind": "pattern", "pattern": "[B-]####", "unique": true }, "branch_id": { "kind": "fk", "ref": "branches.id", "skew": "flat" }, "size": { "kind": "enum", "values": [ "small", "medium", "large" ], "weights": [ 55, 35, 10 ] }, "status": { "kind": "enum", "values": [ "leased", "available" ], "weights": [ 60, 40 ] } } }, "safe_deposit_leases": { "description": "Rows for the safe_deposit_leases table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "box_id": { "kind": "fk", "ref": "safe_deposit_boxes.id", "skew": "flat" }, "customer_id": { "kind": "fk", "ref": "customers.id", "skew": "flat" }, "end_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31", "nullable": true, "nullRate": 0 }, "start_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" } } }, "standing_orders": { "description": "Rows for the standing_orders table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "amount": { "kind": "decimal", "min": 20, "max": 3000, "scale": 2, "distribution": "long-tail" }, "destination_account_id": { "kind": "fk", "ref": "accounts.id", "skew": "flat" }, "frequency": { "kind": "enum", "values": [ "weekly", "monthly", "quarterly" ], "weights": [ 15, 75, 10 ] }, "next_run_date": { "kind": "date", "from": "2026-01-01", "to": "2026-03-31" }, "source_account_id": { "kind": "fk", "ref": "accounts.id", "skew": "flat" } } }, "support_messages": { "description": "Rows for the support_messages table.", "rows": 18, "columns": { "id": { "kind": "pk" }, "message": { "kind": "enum", "values": [ "Thanks, that fixed it", "Can you check again?", "We have reissued your card", "Please verify your identity", "The charge has been reversed", "Your request is complete" ] }, "sender_type": { "kind": "enum", "values": [ "customer", "agent" ] }, "sent_date": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31" }, "ticket_id": { "kind": "fk", "ref": "customer_support_tickets.id", "skew": "flat" } } }, "transactions": { "description": "Rows for the transactions table.", "rows": 1000, "columns": { "id": { "kind": "pk" }, "account_id": { "kind": "fk", "ref": "accounts.id", "skew": "long-tail" }, "amount": { "kind": "decimal", "min": 0, "max": 4967, "scale": 2, "distribution": "long-tail" }, "description": { "kind": "enum", "values": [ "Deposit", "Withdrawal", "Monthly fee", "Interest credit" ] }, "timestamp": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "waking", "trend": "growing" }, "type": { "kind": "enum", "values": [ "deposit", "withdrawal", "fee", "interest" ], "weights": [ 44, 48, 4, 4 ] } } }, "transfers": { "description": "Rows for the transfers table.", "rows": 50, "columns": { "id": { "kind": "pk" }, "amount": { "kind": "decimal", "min": 5, "max": 10000, "scale": 2, "distribution": "long-tail" }, "description": { "kind": "enum", "values": [ "Rent share", "Savings", "Gift", "Repayment", "Invoice" ] }, "destination_account_id": { "kind": "fk", "ref": "accounts.id", "skew": "flat" }, "source_account_id": { "kind": "fk", "ref": "accounts.id", "skew": "long-tail" }, "timestamp": { 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12000, "accounts": 20000, "addresses": 12000, "bill_payments": 30000, "cards": 15000, "atm_transactions": 80000, "credit_lines": 3000, "departments": 60, "direct_deposits": 6000, "employees": 300, "audit_logs": 20000, "customer_support_tickets": 6000, "employee_departments": 300, "investments": 3000, "investment_assets": 9000, "kyc_documents": 12000, "loans": 3000, "loan_payments": 50000, "merchant_accounts": 2000, "mortgages": 1000, "overdraft_protections": 2000, "pos_terminals": 4000, "pos_transactions": 120000, "safe_deposit_boxes": 200, "safe_deposit_leases": 500, "standing_orders": 4000, "support_messages": 18000, "transactions": 1000000, "transfers": 50000 }, "notes": [ "At this size the tables beside transactions were cut to 1/16 of it, so the whole build stays under 3,000,000 rows." ], "downloads": [ { "format": "sql-postgres", "label": "PostgreSQL", "file": "flagship/1m/postgres.sql.gz", "key": "datasets/bank-sample-database/v1/flagship/1m/postgres.sql.gz", "url": 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"name": "An account's balance is its ledger: deposits and interest in, withdrawals and fees out", "violations": 0 }, { "name": "Every transaction comes after its account was opened", "violations": 0 }, { "name": "Transfers, standing orders and overdraft links never point an account at itself", "violations": 0 }, { "name": "ATM cash comes in twenties", "violations": 0 }, { "name": "A loan payment is principal plus interest, after the loan starts, and repays at most the loan", "violations": 0 }, { "name": "A down payment is 5 to 30% of the property, and a credit line's balance is within its limit", "violations": 0 }, { "name": "One address, one KYC document and at most one card each; support replies follow the ticket", "violations": 0 } ] } }, "rules": [ { "name": "An account's balance is its ledger: deposits and interest in, withdrawals and fees out", "sql": "SELECT count(*) AS violations FROM accounts a LEFT JOIN (SELECT account_id, sum(CASE WHEN type IN ('deposit', 'interest') THEN amount ELSE -amount END) AS ledger FROM transactions GROUP BY account_id) t ON t.account_id = a.id WHERE a.balance <> COALESCE(t.ledger, 0)" }, { "name": "Every transaction comes after its account was opened", "sql": "SELECT count(*) AS violations FROM transactions t JOIN accounts a ON a.id = t.account_id WHERE t.timestamp < a.opened_date" }, { "name": "Transfers, standing orders and overdraft links never point an account at itself", "sql": "SELECT (SELECT count(*) FROM transfers WHERE source_account_id = destination_account_id) + (SELECT count(*) FROM standing_orders WHERE source_account_id = destination_account_id) + (SELECT count(*) FROM overdraft_protections WHERE account_id = linked_account_id) AS violations" }, { "name": "ATM cash comes in twenties", "sql": "SELECT count(*) AS violations FROM atm_transactions WHERE amount % 20 <> 0 OR amount <= 0" }, { "name": "A loan payment is principal plus interest, after the loan starts, and repays at most the loan", "sql": "SELECT (SELECT count(*) FROM loan_payments p JOIN loans l ON l.id = p.loan_id WHERE p.amount <> p.principal_paid + p.interest_paid OR p.payment_date <= l.start_date) + (SELECT count(*) FROM loans l JOIN (SELECT loan_id, sum(principal_paid) AS repaid FROM loan_payments GROUP BY loan_id) p ON p.loan_id = l.id WHERE p.repaid > l.amount) AS violations" }, { "name": "A down payment is 5 to 30% of the property, and a credit line's balance is within its limit", "sql": "SELECT (SELECT count(*) FROM mortgages WHERE down_payment < 0.05 * property_value - 0.01 OR down_payment > 0.3 * property_value + 0.01) + (SELECT count(*) FROM credit_lines WHERE balance < 0 OR balance > credit_limit) AS violations" }, { "name": "One address, one KYC document and at most one card each; support replies follow the ticket", "sql": "SELECT (SELECT count(*) - count(DISTINCT customer_id) FROM addresses) + (SELECT count(*) - count(DISTINCT customer_id) FROM kyc_documents) + (SELECT count(*) - count(DISTINCT account_id) FROM cards) + (SELECT count(*) FROM support_messages m JOIN customer_support_tickets t ON t.id = m.ticket_id WHERE m.sent_date < t.created_date OR m.sent_date > t.created_date + interval '3 days') AS violations" } ] }, "publishedAt": 1791371439882, "updatedAt": 1791371439882 }