##Instruction:
Database: financial
Total Tables: 8
Total Columns: 55

Table Schemas:

Database: financial
Total Tables: 8
Total Columns: 55

Table Schemas:

Table: account (4 columns)
--------------------------
• account_id (integer): the id of the account
• district_id (integer): location of branch
• frequency (text): frequency of the acount
• date (date): the creation date of the account
  Values: in the form YYMMDD

Table: card (4 columns)
-----------------------
• card_id (integer): id number of credit card
• disp_id (integer): disposition id
• type (text): type of credit card
  Values: "junior": junior class of credit card; 
"classic": standard class of credit card; 
"gold": high-leve...
• issued (date): the date when the credit card issued
  Values: in the form YYMMDD

Table: client (4 columns)
-------------------------
• client_id (integer): the unique number
• gender (text)
  Values: F：female 
M：male
• birth_date (date): birth date
• district_id (integer): location of branch

Table: disp (4 columns)
-----------------------
• disp_id (integer): unique number of identifying this row of record
• client_id (integer): id number of client
• account_id (integer): id number of account
• type (text): type of disposition
  Values: "OWNER" : "USER" : "DISPONENT"
commonsense evidence:
the account can only have the right to issue pe...

Table: district (16 columns)
----------------------------
• district_id (integer): location of branch
• A2 (text): district_name
• A3 (text): region
• A4 (text)
• A5 (text): municipality < district < region
• A6 (text): municipality < district < region
• A7 (text): municipality < district < region
• A8 (integer): municipality < district < region
• A9 (integer)
  Values: not useful
• A10 (real): ratio of urban inhabitants
• A11 (integer): average salary
• A12 (real): unemployment rate 1995
• A13 (real): unemployment rate 1996
• A14 (integer): no. of entrepreneurs per 1000 inhabitants
• A15 (integer): no. of committed crimes 1995
• A16 (integer): no. of committed crimes 1996

Table: loan (7 columns)
-----------------------
• loan_id (integer): the id number identifying the loan data
• account_id (integer): the id number identifying the account
• date (date): the date when the loan is approved
• amount (integer): approved amount
  Values: unit：US dollar
• duration (integer): loan duration
  Values: unit：month
• payments (real): monthly payments
  Values: unit：month
• status (text): repayment status
  Values: 'A' stands for contract finished, no problems;
'B' stands for contract finished, loan not paid;
'C' ...

Table: order (6 columns)
------------------------
• order_id (integer): identifying the unique order
• account_id (integer): id number of account
• bank_to (text): bank of the recipient
• account_to (integer): account of the recipient
  Values: each bank has unique two-letter code
• amount (real): debited amount
• k_symbol (text): purpose of the payment
  Values: "POJISTNE" stands for insurance payment
"SIPO" stands for household payment
"LEASING" stands for lea...

Table: trans (10 columns)
-------------------------
• trans_id (integer): transaction id
• account_id (integer)
• date (date): date of transaction
• type (text): +/- transaction
  Values: "PRIJEM" stands for credit
"VYDAJ" stands for withdrawal
• operation (text): mode of transaction
  Values: "VYBER KARTOU": credit card withdrawal
"VKLAD": credit in cash
"PREVOD Z UCTU" :collection from anot...
• amount (integer): amount of money
  Values: Unit：USD
• balance (integer): balance after transaction
  Values: Unit：USD
• k_symbol (text)
  Values: "POJISTNE": stands for insurrance payment
"SLUZBY": stands for payment for statement
"UROK": stands ...
• bank (text)
  Values: each bank has unique two-letter code
• account (integer)

##Evidence:
Average salary refers to A11 in the district table. Income categories are classified as High Income (total income > 1,000,000), Medium Income (total income > 500,000), or Low Income (otherwise). PRIJEM represents incoming transactions and VYDAJ represents outgoing transactions. Savings ratio is calculated as (total income - total expense) / total income.

##Role Access Policy (Column-Level):
Role: ClientServices
Accessible Columns: client: client_id, gender, birth_date, district_id; account: account_id, frequency, date; card: card_id, type, issued; disp: disp_id, account_id, type; district: district_id, A2, A3, A4

Based on the above schema and your role's column-level access policy, generate a SQL query to answer the question. If your role does not have access to the required columns, respond with: "Sorry, I cannot answer."


Question: For accounts with loans exceeding $300,000 in districts where the average salary is above the national average, show me the account details including district, region, loan statistics, account owner demographics, income classification, transaction activity, savings ratio, and how they rank within their region by maximum loan amount. Only include accounts with positive net income or no transaction history, and limit results to the top 100 by maximum loan amount.
Evidence: Average salary refers to A11 in the district table. Income categories are classified as High Income (total income > 1,000,000), Medium Income (total income > 500,000), or Low Income (otherwise). PRIJEM represents incoming transactions and VYDAJ represents outgoing transactions. Savings ratio is calculated as (total income - total expense) / total income.
Answer: Sorry, I cannot answer.
Permission: denied (Missing column permissions: trans: account_id, amount; account: district_id; district: A11, account_id, client_id, type)
Gold SQL: WITH LoanStatistics AS (
    SELECT 
        account_id,
        AVG(amount) AS avg_loan_amount,
        MAX(amount) AS max_loan_amount,
        COUNT(*) AS loan_count
    FROM loan
    GROUP BY account_id
    HAVING MAX(amount) > 300000
),
ClientDetails AS (
    SELECT 
        c.client_id,
        c.gender,
        CAST(strftime('%Y', 'now') AS INTEGER) - CAST(strftime('%Y', c.birth_date) AS INTEGER) AS age,
        d.account_id,
        d.type AS disposition_type
    FROM client c
    JOIN disp d ON c.client_id = d.client_id
    WHERE d.type = 'OWNER'
),
TransactionSummary AS (
    SELECT 
        account_id,
        SUM(CASE WHEN type = 'PRIJEM' THEN amount ELSE 0 END) AS total_income,
        SUM(CASE WHEN type = 'VYDAJ' THEN amount ELSE 0 END) AS total_expense,
        COUNT(*) AS transaction_count
    FROM trans
    GROUP BY account_id
)

SELECT 
    a.account_id,
    d.A2 AS district_name,
    d.A3 AS region_name,
    ls.max_loan_amount,
    ls.avg_loan_amount,
    ls.loan_count,
    cd.gender,
    cd.age,
    CASE 
        WHEN ts.total_income > 1000000 THEN 'High Income'
        WHEN ts.total_income > 500000 THEN 'Medium Income'
        ELSE 'Low Income'
    END AS income_category,
    ts.transaction_count,
    ROUND((ts.total_income - ts.total_expense) * 1.0 / CASE WHEN ts.total_income = 0 THEN 1 ELSE ts.total_income END, 2) AS savings_ratio,
    RANK() OVER (PARTITION BY d.A3 ORDER BY ls.max_loan_amount DESC) AS region_loan_rank
FROM account a
INNER JOIN district d ON a.district_id = d.district_id
INNER JOIN LoanStatistics ls ON a.account_id = ls.account_id
LEFT JOIN ClientDetails cd ON a.account_id = cd.account_id
LEFT JOIN TransactionSummary ts ON a.account_id = ts.account_id
WHERE d.A11 > (SELECT AVG(A11) FROM district)
  AND (ts.total_income > ts.total_expense OR ts.total_income IS NULL)
ORDER BY ls.max_loan_amount DESC, region_name, district_name
LIMIT 100;