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15 Μαρ 2010 · If you have lots of records to update, use join, so something like: update (select bonus from employee_bonus b inner join employees e on b.employee_id = e.employee_id where e.bonus_eligible = 'N') t set t.bonus = 0; See this link for more details. http://geekswithblogs.net/WillSmith/archive/2008/06/18/oracle-update-with-join-again.aspx.
26 Απρ 2017 · What I wrote for the above is this: ALTER TABLE a ADD COLUMN Material INTEGER. UPDATE a SET Material = CASE. WHEN a.Element <= 300000. THEN 80000. ELSE b.Material FROM. a JOIN b ON (a.PCOMP = b.PCOMP AND a.Ply= b.Ply) END. I am using SQLite 3.14.1.
18 Ιουν 2011 · I have a mapping table where "ALL" old account number and new account numbers are present. I have to update a transaction table where mapping is existing with old account no and new account number. I want to write SQL ( not PL/SQL ) to update transaction table from mapping table at one stroke.
19 Φεβ 2015 · When you want to update multiple columns at once, you list all of the columns to be updated first, followed by all of the values to use (in the same order that the columns are listed). 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 ...
This tutorial shows you how to perform cross-table updates by using the MySQL UPDATE JOIN statement with the INNER JOIN or LEFT JOIN clause.
Purpose. Use the UPDATE statement to change existing values in a table or in the base table of a view or the master table of a materialized view. Prerequisites. For you to update values in a table, the table must be in your own schema or you must have the UPDATE object privilege on the table. For you to update values in the base table of a view:
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 ...
