text: CREATE TABLE t_entry (
    `id`          INT UNSIGNED AUTO_INCREMENT NOT NULL
    COMMENT '自增主键',
    `name`        VARCHAR(255)                NOT NULL
    COMMENT '名称',
    `level`       INT UNSIGNED                NOT NULL DEFAULT 0
    COMMENT '级别',
    `parent_lvl`  INT UNSIGNED
    COMMENT '父级别',
    `create_time` DATETIME                    NOT NULL DEFAULT CURRENT_TIMESTAMP
    COMMENT '记录创建时间',
    `update_time` DATETIME                    NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
    COMMENT '记录更新时间',
    PRIMARY KEY (id),
    UNIQUE KEY (name)
  )
    ENGINE = InnoDB
    DEFAULT CHARSET = utf8mb4
    COMMENT ='会计科目表';
  