/**
 * SQLite3 데이터베이스 유틸리티 함수들
 */
import Database from 'better-sqlite3';
export declare class DatabaseUtils {
    static isOpen(db: Database.Database | null | undefined): boolean;
    static run(db: Database.Database, sql: string, params?: readonly unknown[], maxRetries?: number): Database.RunResult;
    static get(db: Database.Database, sql: string, params?: readonly unknown[], maxRetries?: number): unknown;
    static all(db: Database.Database, sql: string, params?: readonly unknown[], maxRetries?: number): unknown[];
    static exec(db: Database.Database, sql: string): void;
    static runTransaction<T>(db: Database.Database, transactionFn: () => T | Promise<T>, maxRetries?: number): Promise<T>;
    static checkpointWAL(db: Database.Database): void;
    static isInTransaction(db: Database.Database): boolean;
    static forceCleanupTransaction(db: Database.Database): void;
    static getDatabaseStatus(db: Database.Database): {
        journalMode: string;
        walAutoCheckpoint: number;
        busyTimeout: number;
        isLocked: boolean;
        inTransaction: boolean;
    };
    static initializeDatabase(db: Database.Database): Promise<void>;
}
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