联接

• These include equi - joins and natural joins
  内部联接包括同等联接和自然联接。
• Food industry fittings ; double conical coupling
  食品业用管配件.双锥形联接器
• Performing semi - joins with except and intersect
  使用except和intersect执行半联接操作
• Connecting devices ; plugs , socket - outlets , couplers
  插头、插座、联接器、
• For information about querying tables with joins , see
  有关用联接查询表的信息，请参阅
• Specifies the condition on which the join is based
  指定联接所基于的条件。
• 125 data connection already open ; transfer starting
  资料联接曾经打开，开端传送资料
• Join multiple strings into a single string
  将多个字符串联接为一个字符串。
• Indicates whether this is a join index or not
  指示此索引是否是联接索引。
• Explains the various ways to join a table to itself
  解释将表与其自身联接的各种方法。