//将表tb_seocoo_table_number 中的字段qrCodeUrl含有的内容fromStr替换成toStrr
update tb_seocoo_table_number SET qrCodeUrl= replace (qrCodeUrl, 'fromStr', 'toStr' ) ;.net
UPDATE tb_seocoo_table_number SET qrCodeUrl= replace (qrCodeUrl, 'p.seocoo.net', 't.dianha.net' ) ;seo