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Permission denied when using file.remove in R after updating to 4.1.1

r sql

After updating from 3.6.3 to 4.1.1 a weekly script I run broke. Specifically it triggers an error: To manually delete temp.csv I get a file in use by rsession.exe error from windows. If I restart R in Rstudio, then both file.remove() and manually deleting work. It might be that I’m using a bad stratgy in the first place, but the

Convert nested select to join

Account Table: Answer Your query is probably more efficient than a join/group by version, but it is equivalent to: I should note that if all banks have loans (which seems reasonable) no JOIN is necessary:

Ambiguous column name ‘Created_Date’?

I utilize SQL SSMS. Due to the following, SQL prompts error. After I utilized the same script with many other inner joins the following error remains. I have tried to modify my script, and I keep getting the same messages: [My script] Answer You have: But the error message is clear: more than one table in your query has a

Subtract sum of column from a column in sql

I am inserting First four column multiple times, with new paidVal . Now I want to get sid,snameVal, balance I have used a inner join on studenttbl and feetlb. here I have tried. But I am getting 3 row when I should get 2 only. In the table there is a field cNameVal, and as much different value i m

Sql to fetch records only if related other table records exist

Table: user id compId 1 comp1 2 comp1 Table: Company id name comp1 coke comp2 pepsi need a MYSQL query which should fetch company record only if it has one or more users, when passed a company id. I will have other where conditions on company table. Can this be achieved by joins? example 1: query(comp1) result: coke (atleast one

Replace “OR” on 2 indexes with a faster solution (UNION?)

I’m querying shopping-carts in a shop-system, like: I need to query records of c with a column which shows the number of carts which have the same user OR the same email. So I do: This works, but the problem is that the OR is very slow, because MySQL/MariaDB doesn’t use any key in the subquery: Even forcing the index

SQL group and condition sum in the last row

I have several items which belongs to different group, some are unknown group. I need the sum of each group by date. I just try below SQL but still not exactly what I want: DB: SAP HANA Data: Item PG NET_VALUE_USD EMANAGER_DATE 1 1 100 2021-09 2 1 200 2021-10 3 2 300 2021-09 4 2 400 2021-09 5 3

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