摘要:
左外连接:select * from T_Person left join T_Card on T_Person.CardId = T_Card.CardId 左外连接只匹配后只增加指定列:SELECT a1.*,a2.imcode FROM a1 LEFT JOIN a2 ON a1.a=a2.a 阅读全文
摘要:
i. Prohibit installation and configuration of Network Bridge on your DNS domain network ii. Prohibit use of Internet Connection Firewall on your DNS d 阅读全文