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CREATE TABLE clients (
id SERIAL PRIMARY KEY,
name VARCHAR(50) NOT NULL,
mov_limit INTEGER NOT NULL
);
CREATE TYPE transaction_type AS ENUM ('credit', 'debit');
CREATE TABLE transactions (
id SERIAL PRIMARY KEY,
client_id INTEGER REFERENCES clients,
value INTEGER NOT NULL,
type transaction_type NOT NULL,
description VARCHAR(255) NOT NULL,
created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE TABLE balances (
id SERIAL PRIMARY KEY,
client_id INTEGER REFERENCES clients,
value INTEGER NOT NULL
);
DO $$
BEGIN
INSERT INTO clients (name, mov_limit)
VALUES
('naruto', 1000 * 100),
('mob', 800 * 100),
('jojo', 10000 * 100),
('hellboy', 5000 * 100);
INSERT INTO balances (client_id, value)
SELECT id, 0 FROM clients;
END;
$$
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