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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-1
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0answers
10 views

Update column with different value for multiple rows [on hold]

I often find myself using excel to create update queries. When I need to update multiple rows with different values for a column, I simply use excel to create the update queries (multiple). Here's ...
0
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2answers
40 views

Update Grouped records

I have the following query that returns duplicate values: SELECT [t].[Field1], [t].[Field2], COUNT([t].[Field2]) FROM [dbo].[Table1] AS [t] WHERE [t].[Field2] <> '' GROUP BY ...
0
votes
0answers
37 views

Combine WHERE NOT EXISTS with ON DUPLICATE KEY UPDATE

I have 2 tables uz_params and uz_params_exceptions where uz_params is supposed to be updated frequently by an external script. INSERT INTO uz_params (extension, type, subtype, paramvalue) VALUES ...
1
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2answers
64 views

Update table using values from another table in SQL Server

I have 2 table in my database. Table #1 ------------------------------------------------------------------------- | name | family | phone | email | gender | phone2 | address | birthdate | ...
2
votes
0answers
33 views

Postgres update query complaining about text value when only NULL values are passed

I am using Postgres 9.4.6. Is there any reason why the below update query would execute successfully here:- UPDATE "Predictions" SET "userid" = c."userid", "Fixture_No" = ...
0
votes
1answer
32 views

Update a valid column when another column has changed

We have a valid_phone column that just stores 1 or 0 for valid or not valid. When the user changes their phone number we want that field to go back to 0 so they will have to validate their number ...
1
vote
1answer
30 views

MySQL datetime to just date

Currently I have a table containing a column of type datetime. I have no need for the use of the HH:MM:SS that trail the variables stored in this column. I just need the YYYY-MM-DD. Is there any way ...
0
votes
2answers
32 views

Update field in SQL Server Table Dynamicaly

I need to do a 1 time update of a Sql Server table. The table has a unique ID, contains a member number field and a FileName field which tells us what file the member data came from. What I am ...
0
votes
0answers
31 views

subscriber table needs to be updated - how to use a batch process AND how not to upset the replication while doing it?

I have a table called tblBOrderPaymentGiftVoucher that is replicated to 3 different subscriber servers. this table is part of a publication that contains many tables, some very big. I can't afford to ...
3
votes
1answer
16 views

Sort table rows and save the row numbers using UPDATE

I have Postgres 9.5 with a table movimientos that has the following data: | id | concepto | movimiento | numero | orden | | 1 | AJUSTE 1 | 2542 | 0 | 2 | | 2 | APERTURA | 12541 ...
0
votes
0answers
14 views

Track updated columns postgresql trigger?

I am using postgreSQL and I have tables on which I use triggers to get notified of changes on tables. Now, I have a usecase where when an update on a table is done, I want to notify only the updated ...
10
votes
1answer
502 views

Do databases make a delete and an insert when having to update rows?

So today a professor told us that when the database has to make an update, internally (at low level) it makes a delete and then an insert with the updated fields. He then said that this is something ...
2
votes
0answers
35 views

How to avoid row locks on both tables joined in an update?

I have little knowledge about MySQL internals, but I'm experiencing that in a query like: UPDATE t1 JOIN t2 ON t1.id = t2.id SET t1.a = x, t1.b = y, [, ...] WHERE [ ... ] rows from both t1 and ...
0
votes
1answer
15 views

Can't figure out how to update a column in one table based on multiple boolean values in another table in postgresql

What I want to happen is boolean milestone.milestonecompleted will turn true only if ALL of the linked boolean task.taskcompleted values are True I've looked around and come up with this. Any help ...
0
votes
1answer
63 views

Why can't I update or delete certain records in SQL Server?

I am having a weird issue in SQL Server 2014. I cannot update or delete certain rows from a table. I can insert rows fine, and select them, but when I try to update or delete a row, I get a timeout ...
0
votes
1answer
38 views

Updating column from another table - PostgreSQL 9.2 [closed]

There are two tables: ja_jobs junk.test_test1 I need to update the time_job column from junk.test_test1 to ja_jobs. Here is what I'm doing now: UPDATE ja_jobs t2 SET time_job = t1.time_job FROM ...
1
vote
1answer
19 views

Remove accidental duplicates in PK table, cascade changes to FK table

Lets say I have three tables in a postgreSQL database, one of plants, one of samples, and one of mappings to change variables in plants. There is a PK-FK relationship between plants.id and ...
0
votes
2answers
33 views

MySQL - An UPDATE from a SELECT

The more I learn about about the great things you can do with mysql, the more I keep pushing to learn. I have two tables: Tests TestNumber (int primary key) InactiveTestSlotBitwise (int) ...
3
votes
2answers
48 views

MySql - Ranking so it only needs to be done once

By reading around, this seems to be a reasonable way of ranking people. The table: UserId (int primary key) Name (varchar(100)) Score1 (int highest scores rank 1) Score2 (int, if Score1s are equal, ...
3
votes
2answers
59 views

Multiple Update with Multiple Conditions

We are told to watch out for things being set to null (we dont want) by using the IN clause in the following: UPDATE Tests SET TestScore = CASE WHEN TestId = 10 ...
2
votes
2answers
64 views

Very tricky: Can't update a sequential list SQL-92 ( Filemaker)

I have a quite simple problem, but the solution is very tricky. I'm trying to solve this for months: There is a column "SortID" that needs to get updated with sequential integers, starting from 1. ...
2
votes
2answers
80 views

Percona 5.7 tokudb poor query performance - wrong (non-clustered) index chosen

I have a table with about 8.5m rows in it. The table is tokudb and it has the indexes described below. I'm experiencing dismal performance when trying to run update statements like the following: ...
0
votes
0answers
51 views

Very Very Veeery slow insert queries

I am writing here because I`ve already spent days reading tutorials, other topics in here, and trying different configurations. The project : Fashion website with ~200k products which should be ...
0
votes
1answer
39 views

INSERT and UPDATE in Trigger

I have created a trigger so I could insert every row in a backup table CREATE OR REPLACE TRIGGER xyz AFTER INSERT ON table_1 REFERENCING NEW AS NEW OLD AS OLD FOR EACH ROW BEGIN INSERT INTO table_2 ...
1
vote
1answer
40 views

Mysql Update columns from same table columns

I have a table where payments are located with invoice_id and payment_id and also payment_due_date => payment receiving date and period_months that is total period of the payment I have added 2 ...
1
vote
2answers
44 views

UPDATE from subquery updates rows that shouldn't be updated

Using PostgreSQL, I want to update a column. The information how to update is in another table. My try was this, but it also updates rows I don't want to update: update table_1 set column_x = ( ...
0
votes
1answer
19 views

sql update query for two connected tables [closed]

UPDATE rooms set r.vacant=true FROM reservation s,rooms r WHERE r.room_no = s.room_no AND s.cus_id=1 I created above sql queryto update room status.I want to set vacant as true when customer_id ...
0
votes
1answer
35 views

Updating data from subpartition when the subpartition name is unknown

Thanks to JSapkota who helped me pull the subpartition name as per below query select subobject_name from user_objects where data_object_id IN (select dbms_rowid.rowid_object(rowid) from TABLE ...
0
votes
1answer
30 views

Adding and populating column in Postgres with data from existing column

I have a TEXT column in one of my existing database tables that holds both domain names and IP addresses. I'd like to add a new column to the existing table that's of type INET and populate it with ...
1
vote
1answer
51 views

Simple update takes forever

On SQL Server I want to update a 0/1 interger value for a specific set of records. For some reason this takes very long (let it run for 2 hours, still not finished). I can't figure out what is wrong ...
1
vote
1answer
36 views

Need help on UPDATE query [closed]

This is my table tracks id | art | time id is an auto-increment primary key art is a varchar(512) time is a timestamp not null predefined as current_timestamp and on update current_timestamp ...
-2
votes
1answer
50 views

Cannot update nor insert data to datetime field [closed]

I was trying to insert data through one web application I am developing and I could not insert data, while I was troubleshooting what the problem is, I saw that I can not neither edit datetime field ...
0
votes
0answers
32 views

PostgreSQL not running every update on my script

I'm running a dozen update statements on a loop and some updates just won't happen (they return 0 affected rows), If i recall the script it will slowly update the rows, I don't know how to debug ...
1
vote
2answers
46 views

Find times when table is least frequently used

I would like to analyse performance of one of the big tables in the database. There are only two types of operations on it. Inserts and reads. Once data is entered it is never updated. I need to ...
1
vote
1answer
111 views

SQL Server Trigger does not update all table records

This is my first question so please go easy on me. We are using Access 2013 as a front-end and SQL Server 2012 with MS SQL Server Management Studio 11.0.2100.60 backend with ODBC connections. I am ...
0
votes
1answer
77 views

Update just one unused row

I have a table as follows: token | status | userid | serviceid -------+----------+--------+---------- token1 | ACTIVE | 1 | 2 token2 | INACTIVE | NULL | NULL token2 | ...
3
votes
1answer
81 views

In a WordPress/WooCommerce table the prices are hosed. How to realign them? (a key=value structure)

We had in our WordPress/Woocommerce table (hence mySQL) ab_postmeta the sale (discount) prices for some products. We thought that reseting the sale prices via SQL query (and not via WordPress ...
0
votes
0answers
65 views

SQL Timeout when updating specific rows that goes away when other columns are updated

The data I'm going to provide won't be very complete, so I apologize in advance for that, and will happily supplement with more on request. I mostly just don't know where to begin looking, and don't ...
1
vote
0answers
37 views

Manual postgres migration for Django (python) app

I have a Django (python) data model called Message: class Message(models.Model): text = models.CharField(max_length=50) sending_time = models.DateTimeField(auto_now_add=True) I added sender ...
2
votes
3answers
43 views

MongoDB multi update consistency

I have a collection similar to the below, of say 5,000,000 records. { "_id" : ObjectId("56d18f95d2961d1ddcb7244f"), "rec_id" : 0, "status" : "open", "updated by" : "A" } User B is trying ...
2
votes
2answers
67 views

Update function to enter random/unique GUID per row

I am new to SQL and am trying to do the following. i am using SQLite browser to edit the current file I have I do have a SQLite database with around 1500 rows of data that I would like to create a ...
0
votes
0answers
40 views

Updating 2M rows based on 2M individual rules (MYSQL)

I'm carrying out a fairly simple (but large) Database combine/migration (simple/dumb, but slow work). It's 2 systems that are very similar, but do have slight differences. Currently the main issue is ...
0
votes
1answer
44 views

mysql update based on select result

Here are two SQL statements. One is an update statement and the other is a select statement. I want to combine them. Update update customer_entity set website_id = 4 where website_id = 3 Select ...
0
votes
1answer
39 views

Select and update specific mysql data in single query

I am trying to first select data from a row which contains certain characters. I would then like to update and append new data into another row of those items that were selected. This is my current ...
1
vote
0answers
32 views

MySQL Update column with case on joined tables

I have 2 tables and I want to update table 1 using a case check on table 2: update cms.Clients c #c_id unique join cms.ClientDomains d #c_id not unique on c.c_id = d.c_id set c.country = case ...
0
votes
1answer
15 views

Access IFf Query

I'm new and just starting out at creating databases so I apologise if noob question. What I am trying to do is update my Staff table to show that "Sarah Avon" has married and her new last name is ...
0
votes
0answers
52 views

oracle update statement is too slow

I have oracle database 11.2.0.4 on oracle linux 6.4 I have configure huge page on this OS . After 5 months of my projects , when i want to update any tables their have over 20,000,000 records , this ...
1
vote
2answers
75 views

Updating duplicate records with different data

I have a migration specific issue. Data from a large table has been migrated into another table, but data for one destination column is missing due to certain issues (that are not specific to this ...
6
votes
3answers
262 views

Updating a view on multiple joined tables

Since MSDN does not say much, what happens exactly if I execute the following query? update claims set status='Awaiting Auth.' where status = 'Approved' Can I use the ClaimStatusName column of the ...
3
votes
1answer
582 views

Change SELECT DISTINCT to UPDATE DISTINCT

How can I modify my SELECT DISTINCT query to an UPDATE DISTINCT query? It is important that it only updates the distinct records, as there are multiple records associated with each ...