UPDATE changes the values of the specified columns in all rows that satisfy the condition. Only the columns to be modified need be mentioned in the SET clause; columns not explicitly modified retain their previous values.

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update column based on the sort order of another query

I'm trying to add arbitrarily ordered records to a database so that they can be sorted by the ui (or when I query the database ). My problem is I already have the list, and I need to add a default ...
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1answer
55 views

Find difference between two database and output them in a script sql [closed]

I had a SQL Server 2008 R2 database. I have dump it and made some mods in a copy. So, I have two databases: 1) the older version 2) the new version I need a script SQL to update the number 1) to ...
0
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1answer
82 views

Update table from different table [closed]

UPDATE RBI.RBI_OV_F_DETAIL A SET (BRANCH_ID, BRANCH_NUMBER) = ( SELECT PRICE_BRANCH_ID, PRICE_BRANCH FROM RSE.RSE_SO_F_ORDERS B WHERE A.SOURCE_ID = ...
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1answer
54 views

Compare two columns for difference mark the difference in mysql

I need to compare two fields and mark the similar fields in third table. For Example: Tables customer: phone id, phonenumber followstatus received_Customer: rc_id, rc_phonenumber. I ...
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0answers
40 views

How to use the value from record like as varchar?

I'm trying update a old table with result of selec for another tables but get a error using this sintaxe (e.g.): DO $$ DECLARE _roles refcursor; _onerole varchar; _record RECORD; ...
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2answers
38 views

DBO execute returns true but doesn't execute

I am having a bit of trouble with some of my code. This is the code: $STMT3 = $PDO->prepare(' INSERT INTO `lotteries_entries` (steamID, lottery_id) VALUES (:STEAMID, :ID); UPDATE ...
1
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1answer
35 views

Index that mimics full-text-index

I have a database that is retrieving information quite slowly, I asked a question and was told to use full-text-indexing, this worked, but now we switched over to a .sdf file and Sql Server Compact ...
0
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1answer
37 views

Why Does the Update Statement also updates indexes?

I am currently learning about SQL queries and how indexes work with them, and I ran into a situation that I don't understand. Let's say I have this query for that updates a tables' values with another ...
0
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1answer
80 views

Update an array element with inc mongo update

HI All I have this Data in mongo, {"articleId" : [ { "articleId" : "9514666", "articleCount" : 1 } ], "count" : NumberLong(1), ...
0
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1answer
225 views

How to update a huge MySQL table from a text file

I have a huge MySQL table with 1.3 TB data with InnoDB engine format. Now I have a text file containing updated values of 2.2 GB of records in the 1.3 TB of data. How do I proceed ? I am a newbie ...
0
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1answer
24 views

Update Trigger in MYSQL

Here is my requirement :- I have a table called "users" and field called "Admin". Field "id" is primary key. Wants to update "Admin" field to "1" if id=1000; Tried this ,but not working.I tried ...
0
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1answer
65 views

Update and Insert Statement taking forever

I have a database with two columns that is called using the following query: SELECT TimesUsed, Word FROM Predictions WHERE (Word LIKE @partialWord) ORDER BY TimesUsed DESC In my application it is ...
0
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1answer
139 views

Slow Postgres updates if OTHER columns are indexed?

Certain updates take far too long on large Postgres tables. Given these conditions: only one column is being updated, and it is non-indexed the column already has data in it for every row due to a ...
0
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2answers
31 views

Update all data in a table without affecting ID(PK)

I'm using SQL Server 2005. I have a table with 4846 customer records. The PK is called ID and spans from record 40003 to 79870. This numbers are used a other tables to hold info about user orders, ...
0
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1answer
80 views

using update query with subquery in Oracle sql

I have an update query where I am trying to update a field but for more than one record, I am trying a join but it doesn't work. Below I get multiple values that come back from the select statement ...
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0answers
16 views

update multiple column from multiple tables [duplicate]

I am trying to update multiple columns from multiple tables. My query like below but this is not working , how can write in correct way to update this. UPDATE Z_test_agl_asset a Z_test_cust_att c ON ...
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0answers
183 views

update multiple columns from multiple join tables with selected data from multiple tables in where condition

please help me. UPDATE Z_test_agl_asset a, Z_test_cust_att c ON (c.customattributes_id=a.asset_customattributes_id) , Z_test_cust_att cc ON (cc.customattributes_id=c.extendedcustomattributes_id) ...
3
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2answers
1k views

DB2 UPDATE TRIGGER

I am trying to create a trigger in a DB2 database that runs on the update of a column in one table, and then fills in another table with certain values. For example, there is a power unit table with ...
2
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3answers
2k views

Cascade primary key update to all referencing foreign keys

Is it possible to update a primary key column value with cascading the update among all the foreign keys referencing it ? # EDIT 1: When I run followinq query select * from sys.foreign_keys where ...
1
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3answers
1k views

How to handle big data update based on excel spreadsheet

Scenario Select-based data is exported from DB to Excel spreadsheets. Some manual work is done on the excel files (filling missing data). Changed data from excel files is updated back to DB. ...
0
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2answers
265 views

update column based on sum of data from another table

I have two tables : Table1 (col1, col2, col3, col4, val1, status) Table2 (col1, col2, col3, col4, val2) For Table1 and Table2, The columns (col1, col2, col3, col4) are the composite primary key. ...
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1answer
137 views

PostgreSQL, UPDATE CASE statement uses huge amount of space

I am running a CASE statement on one of my tables and it consumes a huge amount of hard drive space that is never freed up even when i run VACUUM ANALYZE. Autovacuum is ON as well. I am using ...
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1answer
112 views

Mysql update adding subquery field value to field

I want to update a field adding it the value of a subquery field. I'm trying this: UPDATE table a SET a.field=(a.field+b.subfield) INNER JOIN (SELECT subid, subfield FROM subtable WHERE ..... ) AS ...
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2answers
295 views

Is this update, select combination query thread safe?

I have a table called seats, which has a schema like this id,taken For each user, I take a random untaken id and assign to that user, here for simplicity say, I make taken =1. The query I am ...
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2answers
49 views

Can I update only the needed changes in a database?

First of all, I apologize if you can't understand very well what I am saying and it can be edit for better understanding of my post. The next example is for better understanding of databases with ...
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1answer
43 views

SQL - Update table for a unique ID with multiple entries if one entry has variable in question

I'm trying to update a table to fill in a variable to each row in the table if one row for the unique ID shows that variable. I was trying to do the following, but it's giving me an error. ...
2
votes
1answer
102 views

Does a database update force index rebuild regardless of updated field?

With MySQL (InnoDB), I understand that having indexes slow down UPDATE queries. I would like to know if this happens regardless of what fields are updated. For example, if I have a table with 20 ...
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2answers
544 views

How to update a column with values from the same newly inserted row on a SQL Server 2014 trigger?

Using SQL Server 2014, I have this: Table1 Tab1_id int identity(1,1) primary key Tab1_val1 smallint Tab1_val2 smallint Tab1_valInfo varchar(10) -- not yet implemented, will be used ...
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1answer
361 views

Store the resulting list of a SELECT in a variable to count AND use the result

I have stored procedure that uses a cursor and for every fetch a duplicate SELECT, once to determine the number of IDs found (SELECT COUNT(ID) FROM TableA WHERE something.. @cur_var) and if the ...
0
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1answer
46 views

Updating MySQL innodb table based on multiple joins

I have a table with the following (slightly simplified) structure CREATE TABLE `oak_relation` ( `o_id` int(10) unsigned NOT NULL, `k_id` bigint(20) unsigned NOT NULL, `initial` float unsigned NOT ...
5
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1answer
2k views

Postgres Update, limit 1

I have a postgres database which contains details on clusters of servers, such as server status (active, standby, etc). Active servers at any time may need to fail over to a standby, and I don't care ...
2
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0answers
67 views

How to optimize update using join in postgresql

I'm using PostgreSQL 9.3.5 on a CentOS system. I have a very large table (twenty million rows, 50+ column) that aggregates data from a few hundred systems. Several times a day each of the systems ...
0
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1answer
32 views

MySQL: Is there a way to update a field so that all foreign key related fields are updated as well?

I'm assuming the answer to this question is yes but it is hard to Google this type of question and not get overly ambiguous results. I am working with a database that was dumped from a Magento ...
0
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0answers
38 views

Update on table deletes the record

I'm having a problem in my oracle database, I have a table PAYMENTS which has an ID (PK) and when I want to update a record: UPDATE PAYMENTS SET AMOUNT = 2000 WHERE ID = '1'; The record with ID = ...
2
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1answer
34 views

Translate SQL Server update statement to MySQL

I have a development environment with MySQL and a production environment with SQL Server. This update statement works with SQL Server: UPDATE THIS SET <list_of_column_assignments> FROM ...
1
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1answer
57 views

Set bit in Table A if values are present in Table B

I have two tables, Containing up to ~10 million entries. TableA which has 3 columns: IDA (bigint), IDB (int) and CHK (bit). (IDA, IDB) is the primary key. TableB which has 2 columns: IDA (bigint), ...
0
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2answers
84 views

How To Ignore SQL Update Notification

I have a very weird situation. One of our SQL Servers has a software update notification pending for Microsoft SQL Server 2008 R2 Service Pack 1 (KB2528583). However, this server is already at SP2. ...
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1answer
32 views

Postgres blocking UPDATE on new column?

For the life of me, I can't figure out why Postgres won't let me issue this update statement below. Assume any table called dim_dates where there's a column dateType: ALTER TABLE dim_dates DROP ...
0
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1answer
37 views

postgresql updating integer column taking more space than expected

I have two tables, A(a1 serial, a2 varchar(8)) and B(b2 varchar(8)); My query looks like, alter table B add column b1 integer; update B t1 set b1 = t2.a1 from (select b1, b2 from B) t2 where t1.a2 = ...
5
votes
1answer
138 views

.WRITE clause performance optimization

I have found that you can do high performance updates on varchar(max),nvarchar(max),varbinary(max) columns using the .WRITE clause(example here and here). Unfortunately, there is nothing mentioned ...
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1answer
38 views

Is there a way to copy/initialize values in a set

What I want to do (I know this does not work) is: update stats set BandwidthLastMonth = BandwidthThisMonth, BandwidthThisMonth=0 where myPk = 3 Is there a way to do this in a select ...
0
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1answer
314 views

Is it possible to modify an existing trigger definition in MySQL?

I am wondering if it is possible to update a trigger definition in MySQL. For example, I have a trigger T and I want to add some new functionality to it. My assumption is that I need to drop and ...
0
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1answer
51 views

Check for blocked queries periodically and cancel them

I have series of update queries which are executed every 5-10 seconds. Sometimes it happens that one of these will block all the pending update queries as for some reason it just freezes. Since I can ...
0
votes
2answers
38 views

Updating a table with a single UPDATE statement vs several UPDATE statements

CREATE TABLE `messages` ( `mes_id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT COMMENT 'номер объявления', `date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'дата/время дачи/изменения ...
0
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0answers
36 views

Does storing page views in my page table slow performance?

I am storing page views in a view_countcolumn on my page table. So every time the page gets loaded I increment the view count and update the entry. What affect can this have on the performance of my ...
2
votes
2answers
159 views

Update on view over partitioned tables updating all indexes

We have a table, which is partitioned through a date field into separate years. There is a view over all of these tables (Call) Schema is as follows: CREATE TABLE [dbo].[Call_2015]( [calID] ...
0
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73 views

What is the best way to execute a MySQL script periodically on Linux

I want to execute some SQL everyday in a Linux server using MySQL to UPDATE some column's values. In order to do that I use the UPDATE ... SET ... WHERE ... statement. I want to know which is the ...
4
votes
1answer
443 views

Optimizing concurrent updates in Postgres

I'm running concurrent Postgres queries like this: UPDATE foo SET bar = bar + 1 WHERE baz = 1234 Each query affects the fixed K number of rows, and I can't find a way to enforce the order in which ...
2
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0answers
65 views

Unable to Update on SQL Server 2008 R2

This is a bit strange so bear with me please. After installing a new SQL Server 2008 R2 on a new server (Windows 2012 Standard) just like the production one, I tried to connect my web aplication ...
11
votes
2answers
8k views

Optimizing bulk update performance in PostgreSQL

Using PG 9.1 on Ubuntu 12.04. It currently takes up to 24h for us to run a large set of UPDATE statements on a database, which are of the form: UPDATE table SET field1 = constant1, field2 = ...