So I have a problem with my database giving me a deadlock. System.Data.SqlClient.SqlException : Transaction (Process ID 57) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. I have a project that starts to run and then splits into x amount…
Only show Warehous where product is not existing – multiply tables mysql
I’ve got three tables. Product, Warehouse and IsIn. Product: productID name price Warehouse: warehousID name IsIn: productID* warehousID* quantity I now want to write a question where i get all warehouses where a specific product does not exist. I can get a table where the specific product are, but when…
Google BigQuery Dimensions SQL Multiple Grids
how would you select multiple grids in the example below instead of just one under “WHERE”: What needs to be changed: It currently only runs for 1 organisation (GRID), I would like it to run for 11 organisations. The org is identified with an ID called a “GRID”, it looks like this: “grid.517…
How to select 2 boolean columns and retrieve 1 boolean result (both must be true = true)
In SQL Server I have multiple bit columns. If either the product = False or the Category = False, I want to return False. My test code: But all 3 selects crash. My actual code snippet: Of course I can do this with two If-Thens but my current query is pleasantly one clean query so I was hoping to do
Case statement in multiple conditions?
I want to check the column mr.name, if mr.name is null then i have to replace mr.name as mr.ticket_no. How? Can use if else or case? When i use like this it will throw an error if mr.name = null means i have to replace mr.name = mr.ticket_no. I want to check the column mr.name, if mr.name is null then
SQLite: How to avoid using two CTE when using CASE statement?
I have a table trx with following schema: where id is the transaction id and p_id the id of the person doing it. I need to query trx so I get a table that allows me to plot an histogram of frequencies of transactions, that means, I want to know how many p_id did only 1 transaction, how many did
Using NEW and COPY in a Postgres Trigger
I’m trying to copy the last inserted row from a table into a csv file using a trigger. I’ve tried this in various incarnations, with or without EXECUTE but I’m still getting the error. Just cannot get it to access the NEW data. Where am I going wrong ? Answer Adrian’s answer inspired m…
Blaze-Persistence GROUP BY in LEFT JOIN SUBQUERY with COALESCE in root query
I need statistics about alert tagged by codes. Alerts are visible for users with group based restrictions. In case when some tag code is only in alerts which are invisible for user then 0 should be displayed in statisitics. Tables structure: I’m using Blaze-Persistence and try to make GROUP BY in LEFT J…
Combining Aggregate Function with resampling in Impala
I have Table in Hadoop in which I have data for different sensor units with a sampling time ts of 1 mSec. I can resample the data for a single unit with a combination of different aggregate functions using the following query in Impala (Let’s say I want to resample the data for each 5 minute using LAST_…
determine duplication rate per group
EDIT: Previous sample data included the duplicate visits column I need that calculated in the solution. I am trying to determine the total_visits = total visits per website per sub_group duplicate_visits = visits-1 duplication_rate = duplicate_visits/ total_visits distinct_users_subgroup = distinct users per …