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1. /*+ALL_ROWS*/
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SELECT /*+ALL+_ROWS*/ EMP_NO,EMP_NAM,DAT_IN from BSEMPMS WHERE EMP_NO=’SCOTT’;
2. /*+FIRST_ROWS*/
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connect by Ìõ¼þ2
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select * from table
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connect by prior org_id = parent_id;
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http://tianzt.blog.51cto.com/459544/171759
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http://episode.javaeye.com/blog/183016
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Redo Byte Address (RBA)
Recent entries in the redo thread of an Oracle instance are addressed using a 3-part redo byte address, or RBA. An RBA is comprised of
the log file sequence number (4 bytes)
the log file block number (4 bytes)
the byte offset into the block at which the redo record sta ......