export interface Window {
    openDatabase?: (name: string, version: string, displayName: string, estimatedSize: number, creationCallback?: DatabaseCallback) => Database;
}
export interface DatabaseCallback {
    (database: Database): void;
}
export interface Database {
    version: string;
    transaction(callback: SQLTransactionCallback, errorCallback?: SQLTransactionErrorCallback, successCallback?: SQLVoidCallback): void;
    readTransaction(callback: SQLTransactionCallback, errorCallback?: SQLTransactionErrorCallback, successCallback?: SQLVoidCallback): void;
}
export interface SQLVoidCallback {
    (): void;
}
export interface SQLTransactionCallback {
    (transaction: SQLTransaction): void;
}
export interface SQLTransactionErrorCallback {
    (error: SQLError): void;
}
export interface SQLTransaction {
    executeSql(sqlStatement: string, args?: any[], callback?: SQLStatementCallback, errorCallback?: SQLStatementErrorCallback): void;
}
export interface SQLStatementCallback {
    (transaction: SQLTransaction, resultSet: SQLResultSet): void;
}
export interface SQLStatementErrorCallback {
    (transaction: SQLTransaction, error: SQLError): boolean;
}
export interface SQLResultSet {
    insertId: number;
    rowsAffected: number;
    rows: SQLResultSetRowList;
}
export interface SQLResultSetRowList {
    length: number;
    item(index: number): any;
}
export declare class SQLError {
    static UNKNOWN_ERR: number;
    static DATABASE_ERR: number;
    static VERSION_ERR: number;
    static TOO_LARGE_ERR: number;
    static QUOTA_ERR: number;
    static SYNTAX_ERR: number;
    static CONSTRAINT_ERR: number;
    static TIMEOUT_ERR: number;
    code: number;
    message: string;
}
export interface WebSQLDatabase extends Database {
    exec(queries: Query[], readOnly: boolean, callback: SQLiteCallback): void;
}
export declare type Query = {
    sql: string;
    args: unknown[];
};
export interface ResultSetError {
    error: Error;
}
export interface ResultSet {
    insertId?: number;
    rowsAffected: number;
    rows: {
        [column: string]: any;
    }[];
}
export declare type SQLiteCallback = (error?: Error | null, resultSet?: (ResultSetError | ResultSet)[]) => void;