Category "sql-update"

SQLite impute missing values by mean for every group

I have an SQLite table as shown below. students grades Nick 34 Nick 42 Nick 86 Nick Null John 38 John 12 John 74 John Null Colin 87 Colin 23 Colin 46 Colin 42

Using 'on conflict' with a unique constraint on a table partitioned by date

Given the following table: CREATE TABLE event_partitioned ( customer_id varchar(50) NOT NULL, user_id varchar(50) NOT NULL, event_id varchar(50) NOT

Using 'on conflict' with a unique constraint on a table partitioned by date

Given the following table: CREATE TABLE event_partitioned ( customer_id varchar(50) NOT NULL, user_id varchar(50) NOT NULL, event_id varchar(50) NOT

PostgreSQL duplicate key value violates unique constraint while using on conflict do nothing on insert

Table def: CREATE SEQUENCE IF NOT EXISTS lazy_product_stock_id_seq; CREATE TABLE "public"."lazy_product_stock" ( "id" int4 NOT NULL DEFAULT nextval('lazy_pr

SQL query - How to increase the salary of employees, without exceeding a certain salary limit

I am trying to get a query that will allow me to increase the salary of people who earn less than 2000, but I don't want the salary increase for these people to

Remove duplicate entries from string array column of postgres

I have a PostgreSQL table where there is column which has array of strings. The row have some unique array strings or some have duplicate strings also. I want t

SQLAlchemy update multiple rows in one transaction

How can I update multiple, existing rows in a database, using dictionary that maps existing values for one column, to the required new values for another column

How to execute multiple update queries using jooq execute or batch execute without code generation?

I am using JOOQ ( 3.10. 5 ) to update records in ORACLE table without jooq auto code generation in below ways Approach 1- Using DSL execute by using plain SQL S

How to update record with the same data of existing record

How to update record many columns with the same data of existing record in the same table . For Example : id name m_value 1 moh 1000 2 jo 0

Why is my SQL UPDATE syntax giving 'ambiguous column name'?

I am using SQL Server 2014 and I am running the following UPDATE query: UPDATE ReservationStay SET ReasonForstayCode = b.ReasonForStayCode FROM MissingReaso

UPDATE Query without WHERE Clause

Can the UPDATE query be used without a WHERE clause? And if so in what conditions?

mysql update query throwing syntax error

I am trying to update user information (phone number) but mysql showing syntax error. Here is the query for showing all data (phone number) select distinct a.

MySQL - How do I enter NULL?

In SQL, I know I can do: UPDATE TableA SET MyColumn=NULL But, how do I enter NULL into a cell graphically? I tried entering 'null' and 'NULL' and '' (nothing/e

MySQL - How do I enter NULL?

In SQL, I know I can do: UPDATE TableA SET MyColumn=NULL But, how do I enter NULL into a cell graphically? I tried entering 'null' and 'NULL' and '' (nothing/e

MySQL - How do I enter NULL?

In SQL, I know I can do: UPDATE TableA SET MyColumn=NULL But, how do I enter NULL into a cell graphically? I tried entering 'null' and 'NULL' and '' (nothing/e

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