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[原]Oracle sys_connect_by_path 函数

sys_connect_by_path 必须和connect by 子句合用。 SYS_CONNECT_BY_PATH(column, char) SYS_CONNECT_BY_PATH is valid only in hierarchical queries(级联查询). It returns the path of a column value from root to node, with column values separated by char for each row returned by CONNECT BY condition....

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