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dwelling-radio/internal/statistics/db/sqlite/queries/schema.sql

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CREATE TABLE IF NOT EXISTS `song` (
`song_id` INTEGER NOT NULL,
`artist` TEXT NOT NULL,
`title` TEXT NOT NULL,
PRIMARY KEY (`song_id` AUTOINCREMENT),
UNIQUE (`artist`, `title`) );
CREATE TABLE IF NOT EXISTS `history` (
`start_at` TEXT NOT NULL DEFAULT (strftime('%Y-%m-%d %H:%M:%f', 'now')),
`song_id` INTEGER NOT NULL,
`listeners` INTEGER NOT NULL,
`max_listeners` INTEGER NOT NULL,
PRIMARY KEY (`start_at`),
FOREIGN KEY (`song_id`) REFERENCES `song` (`song_id`)
ON UPDATE CASCADE ON DELETE CASCADE );