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If you want to update specific rows (ie where the IDs match) you probably want to do a coordinated subquery. However, since you are using Oracle, it might be easier to create a materialized view for your query table and let Oracle's transaction mechanism handle the details.
6 Δεκ 2017 · UPDATE Subquery. Finally, you can use a subquery in an UPDATE statement for the table to be updated. In the previous examples, we have just used the product table. However, you can use a subquery instead of the product table, which will return a result set that can be updated.
Subquery Method. The first option is to do an update of the DEST_TAB table using a subquery to pull the correct data from the SOURCE_TAB table. Notice the EXISTS predicate to exclude rows from the DEST_TAB table with no matching row in the SOURCE_TAB table.
24 Μαΐ 2017 · Usually, when you need to join multiple tables in an UPDATE, MERGE is the solution. merge into address a1 using ( select p.address_fk, ta2.tempaddress1 from premise p join account ac on (ac.id = p.account_fk) join tempaddresstable ta2 on (ac.ext_ref = ta2.tempextref) ) ta1 on (a1.id = ta1.address_fk) when matched then update set a1.address1 ...
UPDATE /*+ WITH_PLSQL */ t1 a SET a.id = (WITH FUNCTION with_function(p_id IN NUMBER) RETURN NUMBER IS BEGIN RETURN p_id; END; SELECT with_function(a.id) FROM dual); / 1000000 rows updated. SQL> Remember, this is true of queries and DML.
update tabl a. set (a.c1) = (select sum(c1) from ( select c1,a1,b1 from t1,t2,t3 where .. some joins)). This query need to be aliased so that I can check with the. table to be updated with the key values. update tabl a. set (a.c1) = (select sum(c1) from ( select c1,a1,b1 from t1,t2,t3 where .. some joins))qry.
9 Ιουλ 2013 · I'm new to Oracle and using OCI with PHP. I've been doing ok until I've tried to do an update statement. include("ORCLconfig.php"); $updateTitleInserted = oci_parse($conn, "UPDATE insured SET
