I was trying to execute the below query in Db2 and its giving me some error, which I am not able to identify the root cause.Could someone please help here. with test as( select * from ( …
Can I use two values of a foreign key in on table?
I have a ‘users’ table, and there is also a table ‘alerts’. And in the ‘alert’ table, I want to use ‘users.id’ two times representing two different users of a ‘users’ table as a foreign keys in ‘alert’…
How to update empty time in datetime MySQL
We are storing datetime in a column on our MySQL database, formatted in TEXT, but when our datetime is supposed to look like below: ‘xxxx-xx-xx 00:00:00’ The time is deleted or not show on our …
Get Values between Each Comma in Seperate Row in SQL Server
I need to insert multiple rows in a database table from a single string. Here is my string it will be comma-seperated values Current string: What I want is that batch 1 should be ignored or removed and remaining part should be added into the SQL Server database as a separate row for after each comma like this Table name
WITH returned table behave unexpectedly when used with RETURNING in Postgresql?
I’m stumped. Why does this work fine… WITH sst AS (SELECT * FROM subtopics_results WHERE student_id = 2) SELECT * FROM subtopics_results AS str WHERE (subtopic_id,student_id) IN (SELECT …
How do I generate a table name that contains today’s date?
It may seem a little strange, but there are already tables with names for each date. In my project, I have tables for each date to make statistics easier to handle. Of course, I don’t think this is …
Use Datediff only if other column has specific value
What is the query for showing days_left in number of days but only if the status is ‘ongoing’, for the status that ‘done’ it just need to display ‘done’ value Current MySQL Query SELECT id, due_date,…
SQL Server : Remove Duplicate Records by Great Than ContactID
Have been working with the following query to help me list and find duplicates within my table. SELECT TOP 100 a.ContactID, a.[Company Name], a.PhoneNumber, a.Status, a.State FROM Contacts …
Filter and Match Column on a List of Substrings
I am attempting to filter a table of user actions on a list of specific actions. For example, given the following data I want all rows where the UserAction contains the strings “Account Creation” or “Attempt to create duplicate account”. I was able to achieve this with the following Linq, but the query’s performance caused the webpage to timeout and
pagination and filtering on a very large table in postgresql (keyset pagination?)
I have a scientific database with currently 4,300,000 records. It’s a scientific database, and an API is feeding it. In june 2020, I will probably have about 100,000,000 records. This is de layout of the table ‘output’: BTW, this is dummy data. But output is a table with 5 columns: ID, sensor_ID, speed, velocity and direction. What I want to