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Java 6 RowSet ʹÓÃÍêÈ«ÆÊÎö(3)
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ÏÂÃæÒ»½ÚÀïÎÒÃǽ«»á¿´µ½ JdbcRowSet ÈçºÎ×÷Ϊһ¸ö RowSet ºÍÆäËûµÄ RowSet Ò»ÆðʹÓá£
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JoinRowSet ½Ó¿ÚÖжÔÎåÖÖ²»Í¬µÄÁªºÏ·½Ê½¶¼¶¨ÒåÁ˶ÔÓ¦µÄ³£ÊýºÍÅжϸÃʵÏÖÊÇ·ñÖ§³ÖµÄ·½·¨£¬ÈçϱíËùʾ¡£
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ÄÚÁ¬½Ó£¨INNER JOIN£© JoinRowSet.INNER_JOIN supportsInnerJoin()
×óÍâÁ¬½Ó£¨LEFT OUTER JOIN£©  JoinRowSet.LEFT_OUTER_JOIN supportsLeftOuterJoin()
ÓÒÍâÁ¬½Ó£¨RIGHT OUTER JOIN£©  JoinRowSet.RIGHT_OUTER_JOIN supportsRightOuterJoin() 
È«ÍâÁ¬½Ó£¨FULL OUTER JOIN£© JoinRowSet.FULL_JOIN supportsFullJoin()
½»²æÁ¬½Ó£¨CROSS JOIN£©  JoinRowSet.CROSS_JOIN supportsCrossJoin()
ͬʱ»¹ÓÐÁ½¸ö·½·¨£¬getJoinType() ·µ»Øµ±Ç°µÄÁªºÏ·½Ê½£¬setJoinType(int) ÉèÖÃÁªºÏ·½Ê½¡£ÖµµÃ×¢ÒâµÄÊÇ£¬Java 5 ºÍ Java 6 Öж¼Ö§³ÖÄÚÁ¬½Ó (INNER JOIN) ÕâÒ»ÖÖÁªºÏ·½Ê½¡£ÔÚ setJoinType ·½·¨Öд«Èë³ý Inner_Join ÒÔÍâµÄÈκÎÒ»ÖÖÁªºÏ·½Ê½¶¼»áÅ׳ö UnsupportedOperationException µÄÒì³£¡£
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ÈçºÎÁªºÏ¸÷ÖÖ RowSet
ÁªºÏ¶à¸ö RowSet µÄ·½·¨Æäʵ¾ÍÊÇÍùÒ»¸ö JoinRowSet Àïµ÷Óà add ·½·¨Ìí¼ÓÆäËû RowSet£¨Õâ¸ö RowSet ¿ÉÒÔÊÇÉÏÃæÌáµ½µÄÎåÖÖ RowSet ÖеÄÈÎÒâÒ»ÖÖ£¬°üÀ¨ÀëÏß²Ù×÷µÄ JdbcRowSet ºÍ JoinRowSet ±¾Éí£©µÄ¹ý³Ì¡£Ìí¼ÓÒ»¸ö RowSet µÄͬʱҲ±ØÐëÖÆ¶¨ÁªºÏʱƥÅäµÄÁС£JoinRowSet ½Ó¿ÚÖÐÌṩÁËÒÔϼ¸¸ö add ·½·¨£º
addRowSet(Joinable rowset)
addRowSet(RowSet[] rowset, int[] columnIdx)
addRowSet(RowSet[] rowset, String[] columnName)
addRowSet(RowSet rowset, int columnIdx)
addRowSet(RowSet rowset, String columnName)
ÏÂÃæÊÇÒ»¸öÁªºÏÒ»¸ö JdbcRowSet ºÍÒ»¸ö CachedRowSet µÄ¼òµ¥Àý×Ó¡£
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