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In Oracle I have the ability to update multiple columns at a single time using a select statement returning all of the values. Does Sybase have an equivalent statement? UPDATE <table_name> |
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Judy, The statement you provided in Oracle syntax: UPDATE Table2 SET (ColX,ColY) = ( SELECT (ColA,ColB) FROM Table1 WHERE ColA=1) WHERE ColX=4; Could be executed on SQL Anywhere using the following SQL statement: UPDATE Table2 SET ColX=ColA, ColY=ColB FROM (SELECT ColA,ColB FROM Table1 WHERE ColA=1) as Temp WHERE ColX=4; Table1 contains columns 'ColA' and 'ColB' and Table2 contains columns 'ColX' and 'ColY'. This statement would update rows in Table2 with a ColX = 4, setting ColX to ColA and ColY to ColB where ColA and ColB are cells in a tuple of Table1 that satisfies 'ColA=1'. Hope this Helps, Mikel Rychliski |
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In SQL Anywhere you can use the MERGE statement to do this (and much more). MERGE INTO <table_name1> AS dest USING ( SELECT * FROM <table_name2> WHERE <where_statement> ) AS source ON dest.<column_name1> = source.<column_name1> AND dest.<column_name2> = source.<column_name2> WHEN MATCHED THEN UPDATE SET dest.<column_name3> = source.<column_name3>, dest.<column_name4> = source.<column_name4> |
