I’m trying to write a query to delete a user registration from my SQL Server database, but when I try to delete a user, I get this error: System.InvalidOperationException: ‘ExecuteReader: …
Get FileStream size (sql server) by mvc app context asp net mvc
I would like if .net (asp.net mvc) provides possibility to get size of FileStream having DbContext. As I did research so far I can: 1) SELECT SUM(DATALENGTH(‘ColumnName’))FROM Table 2) SELECT …
Laravel sort conversations by last message
I have a Conversation model that has many ConversationMessage models. Now I want to sort the conversations based on the last message of the conversation. Basically like WhatsApp. How do I build the …
Finding average highest salary
Write a query to find the highest average sales among all the salespersons using the given table. Table: Sales Field Type InvoiceNo Integer SalesPerson Text TotalSale Integer Sample …
Powershell foreach INSERT INTO SQL Server DB on multiple rows
I am trying to insert 2 separate arrays into multiple records on 1 SQL Insert Command. I have done the foreach command but it will only accept 1 of the arrays. I have tried doing nested foreach …
Bigquery: Select top 3 with Group By condition
I have a table like this I want to select the top 3 total by groups. How can i do it? Answer In most [big data] use cases using ROW_NUMBER() is not fine as it ends up with resource exceeded error. This is because it requires all point of same group be present in same/one node which in case of
MS-Access Query to PostgreSQL View
I am converting a microsoft access query into a postgresql view. The query has obvious components that I have found reasonable answers to. However, I am still stuck on getting the final result: …
Getting Foreign Keys as separate columns
i’m not really much of an expert when it comes to databases and i was wondering if it’s possible to do something which might be a little weird I’m having a simple table called options which has 3 …
SQL Server 2014 – Show record even if zero (General Ledger reporting)
I am creating a General Ledger report for the finance team. I have a list of all transactions by calendar Month. Of course some GL codes are not used every month for whatever reason. I do have another …
Fetching Results after ibm_db.execute()
Take a look at the following code: import ibm_db #Authentication Details f=open(r”C:UsersXXXXXMy Code.rc”,”r”) lines=f.readlines() us=lines[0].rstrip() pd=lines[1] sql_file = “NNM_SQL.sql” f = …