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'
5 Απρ 2023 · We want to update the T1.CODE and T1.DESCRIPTION values, using the values from T2.CODE and T2.DESCRIPTION using a join in the ID value. update t1 a set a.code = b.code, a.description = b.description from t2 b where a.id = b.id and b.id <= 5;
4 Αυγ 2023 · 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 ...
UPDATE dest_tab tt SET (tt.code, tt.description) = (SELECT st.code, st.description FROM source_tab st WHERE st.id = tt.id) WHERE EXISTS (SELECT 1 FROM source_tab WHERE id = tt.id); 5000 rows updated. SQL> SELECT COUNT(*) FROM dest_tab WHERE description LIKE 'Updated%'; COUNT(*) ----- 5000 SQL> ROLLBACK;
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 ...
6 Σεπ 2021 · The general syntax of writing an UPDATE statement with a JOIN; Converting your SELECT statement to an UPDATE statement. Tips and tricks; Also, everything in this tutorial can also be found in the following FREE Ebook: FREE Ebook on SQL Server JOIN Operations!
You can combine rows from two tables with a join. This tutorial explains the join methods using these two tables: select * from toys; select * from bricks;
