Αποτελέσματα Αναζήτησης
15 Μαρ 2010 · You can do this: UPDATE table1 SET table1.value = (SELECT table2.CODE. FROM table2 . WHERE table1.value = table2.DESC) WHERE table1.UPDATETYPE='blah'
27 Δεκ 2023 · Before diving into complex examples, let's understand the basic syntax of an update with a join operation in Oracle: sql UPDATE table1 SET table1.target_column = (SELECT table2.source_column FROM table2 WHERE table1.join_column = table2.join_column) WHERE EXISTS (SELECT 1 FROM table2 WHERE table1.join_column = table2.join_column); In the above ...
19 Φεβ 2015 · For example: UPDATE CONTACT C SET (C.PHONE, C.FAX) = ( SELECT P.PHONE, P.FAX FROM PERSON P WHERE P.PERSON_ID = C.PERSON_ID ) WHERE C.CURRENT_YEAR_ID = ( SELECT CURRENT_YEAR_ID FROM CURRENT_YEAR WHERE DEFAULT_YEAR = 1 ); (You'll have to check my logic, because I'm not entirely clear on your relationships.)
Sql - Update statement with inner join on Oracle. In Oracle, you can perform an update statement with an inner join using the UPDATE...FROM syntax or the MERGE statement. Below, We'll provide examples of both approaches.
Direct join syntax is unsupported in Oracle Database; use a correlated subquery to fetch the values instead. For example: update nashvillehousing a set propertyaddress = ( select nvl2(a.propertyaddress, b.propertyaddress,b.propertyaddress) from nashvillehousing b where a.parcelid = b.parcelid and a.uniqueid_ != b.uniqueid_ ) where a ...
This statement updates the value of a single column, FLIGHT_NUMBER, in a particular row. The row to be updated is specified using a WHERE clause. After the update operation, a SELECT statement displays the data in the FLIGHTS table. Verify that the specified column was updated.
9 Ιουλ 2015 · UPDATE newTable s SET s.datetime = ( SELECT tt.timedate FROM topten tt INNER JOIN (SELECT home, MAX(datetime) AS MaxDateTime FROM topten GROUP BY home) groupedtt ON tt.home = groupedtt.home AND tt.datetime = groupedtt.MaxDateTime WHERE s.home = tt.home AND rownum <= 1); or setting the subquery for MAX
