Updating table with values from another table other uses of radiocarbon dating

Posted by / 20-Dec-2017 06:44

Updating table with values from another table

select col2 col3 as result from table1 inner join (select distinct col_x2 from table2 where col_y2 = 'super OK') temp on temp.col_x2 = col_x1 where col4 = 'OK' How can I use join in my update statement? you update a join when you want the data from T1 to overwrite what is in T2 and you join T2 to T1 by T1's primary key. MAX_RANGE_CNTRL where jobs.rate_type = 'A' and jobs. nc2 nc3 nc4 nc5 nc6 nc1 matches c1, nc2 matches c2, nc3 matches c3 What I need to do is update particular records from one of the tables, but only the common columns The conceptual SQL should be some in the likes of (this is not a query don't hit me ;) it's what is intended to be done): Update table_extended set table_extended.nc2 = table.c2, table_extended.nc3 = table.c3 where table_extended.nc1 = table.c1 = @parameter Is there a simple way of doing this update? Many thanks, May 29, 2008 - pm UTC and if the other bottlenecks exist for merge, they shall exist for create table as select - plus reindex - plus grant - plus constrain what are your waits for, got a tkprof with waits? Is there any other way i can use to speed up the update by any efficient means! And why do i get an 'invalid column name' error when i run this?

qty I want to update ORDERED_ITEMS table for a few records but exclude any book where BOOKS.bk_flag='X' Would you do this UPDATE ordered_item SET qty = new_qty WHERE order_date = xxxx and cust_id = xxxx and bkno not in (select bkno from books where bk_flag May 06, 2008 - am UTC tell me how you would do an update on a join here? D May 06, 2008 - am UTC and the types table plays into this HOW? You want to join basically three tables together, I can envision that jobs.item_no = class_test.item_no, but see NO WAY to add in TYPES to that join this question begs more questions than answers itself. Is it better to go for Create Table as Select (update info) ???? ) But i cant use the create for limitations on downtime of the table. Unfortunately i cant get the tkprof as i dont have access to.

Hi Tom, Due to migration to new system we have to change all our account numbers. June 28, 2005 - pm UTC yes, the predicate in the join for the fictional question without a sample table and data was wrong (everytime I wing it, try to answer WITHOUT TESTING, it comes out wrong. test cases are relevant :) Hi Tom, Thanks for answering my question.

( Client number is consist of branch, Number, Sub Number Currency Code ) We have one big transaction table around 1 million records, having many columns, and at many places client numbers are stored from account master under various columns 1. You told me to use update ( select old.old_account_number, new.new_account_number from old_table old, mapping_table new where old.old_account_number = new.old_account_number ) set old_account_number = new_account_number; But I think my questions still reamin unanswered 1. In your answer only one number say client number will get updated.

Objective : Objective of this post is to demonstrate, how we can update value/data in one table with the data from another table.

Requirements : We need two tables with at-least a common field among them with same datatype.

Here you want to set a qty to a constant for some records - and you 'anti-join' to the other table, not join. create table types 2 (type varchar2(1), 3 description varchar2(50), 4 factor number(4)); ************************************************************************ Insert table: insert into types values ('A','Monthly','12') / insert into types values ('B','HOURLY','1796') / insert into types values ('G','Daily','224') / insert into types values ('H','Per Visit','') / insert into types values ('I','Per session','') / ******************************************************************** insert into class_test values ('0001','3,281.18','4,177.64') / insert into class_test values ('0002','3,779.27','4,820.00') / insert into class_test values ('0003','4,779.27','5,820.00') / insert into class_test values ('0004','5,779.27','6,820.00') / insert into class_test values ('0005','7,311.45,'10,402.64') / insert into class_test values ('0005','','20.83') / insert into class_test values ('0006','','14,528.60') / insert into class_test values ('0007','5,001.82','5,727.91') / ****************************************************************** insert into jobs values ('0001','CSI','A','','50131.68') / insert into jobs values ('0002','TTI','A','','200') / insert into jobs values ('0003','SSP','A','','') / insert into jobs values ('0004','CCC','A','','') / insert into jobs values ('0006','CIO','A','','') / insert into jobs values ('0007','CIO','A','','') / It should be update rows in JOBS table where rate_type = 'A', and ITEM_NO of JOBS table should be match with ITEM_NO of class_test table. Name Marital Status Mobile Phone Email I want to update table A (Name and Marital Status) using table B data, considering that ID matches in both tables, and using a designated ID (the use of Id may be optional, but for sake of simplicity lets assume we only want to update 1 row, but multiple columns at same time) Update table A set table A. Interestingly the Update that is suggested by you takes 12 hours and Update using the PL/SQL cursor style takes 8 hrs consistently on the live environment! thanks in advance June 04, 2008 - pm UTC create table has to be followed by indexing, grants, constraints and everything else - have you accounted for THAT. Unfortunately i cant get the tkprof as i dont have access to. if you were asked to pilot a plane with a blindfold on - how well do you think you would do. I cannot tell you how to make something more efficient if I do not know what is impeding the efficiency in the first place. how can i write the querry please help me thanks regard pradeep June 18, 2013 - pm UTC no create no inserts no look (seems to be light on details too - like what you mean exactly - you talk about details and status but then all of a sudden message pops up???? now if i want to perform update operation on DETAILS table i need get information on MESSAGE table. Secondly you have shown me to update table with "KEY PRESERVED" method. IT NEEDS THIS LOGICALLY regardless of the method used, so just add it (for if a row in OLD joins to more than one row in NEW -- you are hosed, you cannot update this data, therefore NEW has a unique/primary key, add it to facilitate the update) I had a similiar query and i tried applying to my tables. If it is not possible can you show me how to write "GOOD" sql ? i.e, one column of a table should get updated from another column of another table.

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