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Oracle update to teradata update with select subquery

Here is the oracle query .Can anybody give me teradata query . update table_a A set display_format = nvl((select prop.propvalue from table_a B, table_c C …
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UPDATE from recursive query

Is it possible to do an update from a recursive query in one SQL statement without using a temporary table? I am trying to set the very top boss id for each employee and I get the …