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Questions tagged [update]

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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1answer
270 views

How to update a sequence column using single update statement

I have a table, lets call it foo which consist a column priority and has a unique constraint on it. lets assume below is the current state of foo table :- mysql> select * from foo; +-----+--------...
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2answers
45 views

I need to copy values of a column from 1 DB to another DB on a diff column but has the same primary key

i need to copy the value of column of nickname and sysnbr to another DB on a diff table/column: I need to copy the nickname column and sysnbr column to this table. this is on another DB nickname = ...
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1answer
59 views

Update “oldest” row

I need to update the "oldest" row in the database (for now, its limit 1, but I need to also be able to set it to n). I'm essentially doing a constant stream of "update the oldest rows and retrieve ...
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1answer
73 views

Improving performance of a query update that uses md5

I need to optimize this query, or change some configuration, because execution takes too much time. Query with rows as ( update hotmail.clean_us_usdataclean_1 set offers_excluded=case when ...
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1answer
50 views

Regularly updating table with huge amount of rows

I have a table containing (in addition to some metadata) a score and a boolean flag: CREATE TABLE scores ( score_id SERIAL NOT NULL CONSTRAINT score_pkey PRIMARY KEY, user_id ...
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1answer
19 views

Update record column with id found in the table of an associated model

Given three tables: A users table with id's: ╔════╗ ║ id ║ ╠════╣ ║ 1 ║ ╟────╢ ║ 2 ║ ╟────╢ ║ 3 ║ ╚════╝ A purposes table with user_id's ╔════╤══════════╗ ║ id │ user_id ║ ╠════╪══════════╣ ║ ...
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1answer
97 views

An UPDATE runs unexpectedly on MySQL 5.7 whereas it runs as expected on prior versions

I use a column called sequence on tables where I have to re-sort blocks of rows into an arbitrarily order. CREATE TABLE `tkmemberstage` ( `ID` bigint(22) unsigned NOT NULL AUTO_INCREMENT, `...
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1answer
103 views

Should SQL Server 2000 throw an error if update statement fails within a SP?

I'm troubleshooting an issue on SQL Server 2000 where it appears that a update statement in a stored procedure failed, and the check for @@ERROR <> 0 didn't catch it, so the transaction was ...
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2answers
3k views

How to UPDATE along with INSERT INTO SELECT [closed]

I added some entries from table2 to table1 as INSERT INTO table1 (title) SELECT title from table2 WHERE ... how can I UPDATE table2 for the SELECTed or INSERTed entries as UPDATE table2 SET status='...
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1answer
47 views

How to accomplish such insert-or-update strategy?

Programming stored procedures isn't my strongest point when it comes to programming, but I'm trying to get better. I've stumbled upon a business requirement that's kind of hard for me and I was ...
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1answer
94 views

Subtract multiple quantities in table2 from table1

How can I subtract the quantities in table2 from table1? I'm using SQL Server 2014. Table1 P_ID name quantity 1 carrot 100 2 eggplant 100 3 Avocado 100 ...
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2answers
126 views

Understanding why a query is slow

I have a new column in SQL Server 2016, on a table of type bit. (I wanted it to be a persisted calculated column but was overruled and asked to make it a bit that is maintained by program code). Its ...
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2answers
422 views

Concurrent UPDATEs on INNODB tables in MySQL

I need to UPDATE all rows for multiple columns on a large INNODB table. Each UPDATE processes one column separately and takes about 1 hour. I have to do this for 10 columns so it would take 10 h I do ...
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1answer
2k views

Insert Trigger to a Linked Server error

I created an insert trigger in a table that will fire when an insert/update/delete is made. The trigger is supposed to send information about the query that fired it, but every time it fires, the ...
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1answer
3k views

MongoDB update multiple sub documents inside array, each according to a condition

I have a document like this: { wid: 1, items: [ {nid: 1, sent: 900}, {nid: 2, sent: 12}, {nid: 3, sent: 0}, {nid: 4, sent: 1} ] } Now consider I want to ...
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1answer
3k views

How to UPDATE from JOIN with GROUP BY

In a SELECT query of SELECT b.id, MIN(IFNULL(a.views,0)) AS counted FROM table1 a JOIN table2 b ON a.id=b.id GROUP BY id HAVING counted>0 How can I turn this query to UPDATE as UPDATE b.number ...
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1answer
62 views

Is it harmful to update columns which aren't changed?

Say I have a table with some columns: CREATE TABLE t ( key int PRIMARY KEY, c1 int, c2 text, c3 timestamptz ); I now fetch a row from the table: SELECT * FROM t WHERE id = 180; ...
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1answer
91 views

I Want To insert data in transaction table and at the same time update customer table in codeigniter

(codeigniter) I Want To insert data in transaction table and at the same time update customer table . I want to Add value of ChangeDue in transation table To value now_debt in Customer Table ...
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2answers
480 views

UPDATE with JOIN: Incorrect syntax near the keyword 'RIGHT'

I'm using SQL Server Management Studio 2005. I want to look up a column value in another table, using a shared ID tblOrder_ordernr in both tables, but only update one table. To me, the query is ...
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1answer
629 views

Temporarily disable indexes before updating whole table

For testing purposes I periodically restore production backup into a new database (AWS RDS PostgreSQL instance) with pg_restore. In the new database I run SQL queries that anonymize sensitive data. ...
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1answer
123 views

Update only if entry does not exist

I have to update many records. I don't want to duplicate the entries. The table concatenates the value to the end. So in theory, I could add the value twice. I want to put a check to make sure the ...
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1answer
61 views

Why is this very simple UPDATE so much slower than the SELECT it contains?

In MariaDB 10.3.9: SELECT COUNT(*) FROM photos vs UPDATE counts SET countValue = (SELECT COUNT(*) FROM photos) WHERE countName = 'photos'; The select takes 1.1s vs the update which takes 2.6s. ...
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2answers
1k views

Update single field in a document (document.update($set)?)

Can't seem to figure out how to update a single field. Whatever I try, to update one field (picture: "url") the rest of the fields are being removed and set to null. I use the following command now: ...
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1answer
32 views

Scrambling PII data in CLOB columns

I am working on scrambling PII tags in CLOB columns such as <FirstName> or <LastName> or <SSN_Number>. so I am using the below query to achieve the same. UPDATE /*+PARALLEL(8)*/ ...
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1answer
31 views

What is the best solution to prevent picking the same value (by multiple requests)?

Situation: there is a table "Tours" which contains a lot of generated records with different properties (Color, Priority, PickedUp). The goal is to allow external application (over REST API) to pick ...
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2answers
121 views

creating a trigger after update exclude a column?

I want to create a trigger that set a column to to_sync true if the other columns has been changed. CREATE TRIGGER [dbo].[product_trig] ON dbo.product AFTER UPDATE SET NOCOUNT ON; IF NOT ...
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1answer
54 views

What is the function that determines the maximum value in a series?

Say I have a table with columns C and D (among others but these are the relevant ones) with the date type. I am instructed to update the values in C to be 90 days before its corresponding value in D, ...
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2answers
36 views

How can I instantly update a table in a database with the columns values from another database?

I have database_1 and database_2 both on the same server. How can I instantly update the USER table in database_2 when data is inserted into the USER table in database_1? Structure of both tables: ...
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1answer
1k views

Trigger to check if a column is updated and another one has a specific value

I'm writing a trigger for a SQL Server database. What I want is, when a table is updated, check if a specific column is updated or not and if another column has a value = 'W' or not. If it is so, the ...
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1answer
58 views

Why does this tsvector update use so much space?

This is my table structure: Column | Type | Collation | Nullable | Default | Storage | Stats target | Description -------------+---------------...
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2answers
48 views

Update values from one table to another where key values are not unique

I've been trying to figure this out for hours and can't seem to get it. If it can be done, any help would be greatly appreciated! I hope I'm clear with what I'm asking :-) Consider the following: ...
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1answer
662 views

Order of Execution of Set clause in Update Query (Postgres)

I recently came across this strange behaviour in Postgres. I had a table like the following one: sasdb=# \d emp_manager_rel Table "db3004db.emp_manager_rel" Column | Type | ...
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2answers
4k views

How to run update query on multiple table via joins simultaneously on postgres?

In MySQL, I can do a query like this UPDATE prd_sectionshapename se inner join prd_shape s ON s.id = se.shape_id SET se.company_shape_name = 'ABC', s.name_en = 'Another name' ...
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2answers
545 views

Unable to update MySQL table from linked server on SQL Server 2014

I'm using SQL Server 2014, with a linked server to a MySQL database on AWS. I need to update rows on that linked server, using data that exists on another linked server. And if that wasn't complicated ...
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1answer
188 views

Best way to prevent deadlocks and server locking for single row Insert/Update transaction?

I have Update transaction that will run for single row at the time. However, my application is multi thread and there might be more than one user at the time trying to access same table. While doing ...
2
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3answers
285 views

Large update and delete based on another table

I have a very active PostgreSQL 10.4 DB, dealt with through SQLAlchemy, so SQL is not my forte. Among its tables, there are master with a primary key id and some nonindexed string column value, and ...
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0answers
69 views

Where is Newid(), Rand(), and Sysutcdatetime() new value per query vs. row behavior documented? [duplicate]

Within a single query, all current time functions like sysutcdatetime() return a single point in time that is re-used throughout the query for each instance (e.g. of sysutcdatetime()) no matter how ...
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2answers
372 views

Update selected data from same table column as currency

I am trying to update selected data from a table column and format this data as currency. My table column holds strings that have both mixed whole numbers and already formatted data. This was due to ...
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1answer
160 views

Affected rows after update with OpenQuery

Is there a way to get the affected row count, when updating through an connection server? I'm using MSSQL connected to MySQL with ODBC. UPDATE OPENQUERY (MyConnection, 'UPDATE recordid, status FROM ...
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1answer
1k views

Updating a string field by concatenating 2 int columns

I have 2 columns, an int and a tiny int, and I want to update another column, a varchar one, with the value column1 + '-' + column2. Something like this pseudo code: UPDATE COLUMN3 varchar = CONCAT (...
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1answer
5k views

mysql update based on select result, How combine?

Here are two SQL statements. One is an select statement and the other is a update statement. I want to combine them. Select SELECT * FROM test WHERE `id`='1' Update UPDATE test SET `select_count`=...
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1answer
155 views

Innodb updates records with delay

I have two tables in my database like these: CREATE TABLE `main` ( `id` int(11) NOT NULL AUTO_INCREMENT, `type` int(11) NOT NULL, `status` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB ...
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0answers
40 views

Do any of the PostgreSQL releases for Windows support automatic updates?

PostgreSQL has two distributions for Windows, EnterpriseDB BigSQL Do either of these Windows distributions support automatic updates for the term of support? Something that looks for the updates ...
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1answer
1k views

Which is faster to update thousands of table rows?

With stored procedures in PostgreSQL v10.1.2, which is the fastest way or which is better: to check if rows exists and then update or try to update directly with the possibility that no rows matching ...
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1answer
47 views

Update MySQL with Solaris 11 IPS Package

I'm barely new with Solaris OS and there are still a couple of things I definitely don't get it. I want to replicate a MySQL installation that someone did in the past in a development server we have. ...
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1answer
44 views

Dealing with Oracle ARCHIVELOG during huge updates

It's required to update columns with metadata globally in all rows of all tables in DB. Let's say every table has a column MY_META and the aim is roughly update ANOTHER_TABLE set MY_META = 'HELLO' ...
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1answer
150 views

PostgreSQL Update Column From Lookup [closed]

I'm trying to replace a column with a lookup from another table. Seems simple, but I'm thinking PostgreSQL is getting in the way for some reason. I've seen that some syntax that evidently doesn't ...
0
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1answer
191 views

Trigger on 2 tables : issue with INSERT and UPDATE

This is related to my previous question: Trigger to cascade updates to a second table. In my Postgres 9.6 DB, I had 2 triggers on emprise (formerly table1), supposed to insert or update some fields ...
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1answer
330 views

Trigger to cascade updates to a second table

In my PostgreSQL 9.6 database, I am trying to update 2 fields in table2 with a trigger when table1 is modified. Function: CREATE OR REPLACE FUNCTION schema.maj_tbl2() RETURNS trigger AS $BODY$ ...
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1answer
847 views

Concatenate into Field in Update

I am trying to write a Stored Procedure which updates a quantity data column in one of my tables, and then takes a field set for random notes and concatenates the update information. This is what I ...