So I have a Table A that is missing a relation with Table B such that I want to add the relationship information preserving the order based on insert. Table B can have multiple pieces where UUIDs are unique to a grouping and the order is preserved by and index. So I can have in Table B: What I want
Tag: sql-update
Updating field value based on data across three separate tables
I have been trying to UPDATE the values of a field (IsException) from 0 to 1 in a table (g) based on corresponding data from a separate table (a) in two fields (name, date) when the combination of both appear in that separate smaller table. The problem I am running up against is that the ‘name’ field comes from two
PostgreSQL query update returns UPDATE 0
I am having trouble with a PostgreSQL query where my update condition contains more prerequisites. I attached 2 images to describe my problem. I want to update the highlighted row But the response is: Answer Your problem might be somewhere else (see this db<>fiddle) A few thoughts on your data: Reduce the level of precision of your coordinates. With 13
SQL Server Update Row where date is not the max date when records are grouped by some ID
I have a table where I account records are loaded daily. If an account comes in to the table and it already exists I keep both records in the database but need to update the record with older …
Conditional update with jsonb_set()
I have a table in a Postgres 11.3 database with a jsonb column. Trying to update all objects inside a nested array name “iProps”. If the path {iProps -> value -> rules -> ao -> sc} is an object, then the path should be updated from an object to a string with the value {iProps -> value -> rules ->
update value only when value changed
I have to update main_table data from another table. Below is statement We will have value in any one column among value_string,value_date in a row or for a key, based on type_key. (like if type_key is string then value_string will have value and value_date is null). There is a trigger which ensure this constraint. even if there was no change
How to write the sql in SQLite with this?
WITH cteCountDownlines AS ( –=== Count each occurrence of EmployeeID in the sort path SELECT EmployeeID = CAST(SUBSTRING(h.SortPath,t.N,4) AS INT), NodeCount = COUNT(*) –Includes current …
Pgsql find similar records in database
I have a table that has the layout of this sensor_id time value 1 2020-12-22 09:00:00 20.5 1 2020-12-22 10:00:00 21.5 1 2020-12-22 11:00:00 22.5 1 2020-12-22 12:00:00 23.5 2 2020-12-22 09:00:00 …
Update columns based on calculation
My table looks like this: I have a list of id’s connected to datestamps. I can manage to calculate the difference between their latest and first entry as follows: However, I am unsure how I can update my table to reflect these calculations. What I want is the following: Answer In MySQL, you can self-join: I would not necessarily recommend
Change column value if date is older than 1 hour in mysql/mariadb?
Say I have below SQL table: Basically I want MySQL to check the Date column every 3 minutes and if Date value is older than 1 hour, I want to change Status to Offline. Can we achieve such thing in SQL? Alternatively if there is easier solution in Django python, I am open to use that as well. Answer I